MDS LEDR 400S, LEDR 700S, LEDR 400F, LEDR 900F, LEDR 1400S Operation Manual

Microwave Data Systems Inc.

LEDR Series

Digital Microwave Radios

Covering LEDR 400S/F, 700S, 900S/F, 1400S/F Models

Including Protected (1+1) and Space Diversity Versions

P/N 05-3627A01, Rev. D

JANUARY 2003

Installation & Operation Guide

)

QUICK-START GUIDE

LEDR Series radios are supplied from the factory in matched pairs and are configured to user’s specifi­cations. There are a few steps necessary to place the pair on-the-air communicating with each other.
Once this is done, system-specific parameters will need to be reviewed and changed to match your
requirements. Below are the basic steps for installing the LEDR radio. For more detailed instructions,
please see “INITIAL STARTUP AND CONFIGURATION” on page 25. When making cable connections,
refer to Section 3.6,

1. Install and connect the antenna system to the radio

• Ensure a path study has been conducted and that the radio path is acceptable.

• Use good quality, low loss coaxial cable. Keep the cable as short as possible.

• Preset directional antennas in the direction of desired transmission/reception.

2. Connect the data equipment to the rear panel data interface

Rear Panel Connectors

, on page 17 for a rear panel view of the radio.

• The data interface should be an RJ-45 connector for Fractional-T1, Fractional-E1, or E1, and a
DB-25 connector for EIA-530.

• Verify the customer premises data equipment is configured as DTE. (By default, the LEDR radio is
configured as DCE.)

3. Apply DC power to the radio

• Verify that the line voltage matches the power supply input range (typically 24 Vdc or 48 Vdc).

• The power connector is a three-pin keyed connector. The power source can be connected with
either polarity. The center conductor is

• Ensure the chassis Ground lug is connected to an appropriate ground point.

4. Change SUPER password and set up user access

• Login to Network Management System, using the password

“login” on page 68

(See

• Change the password using the

• Set up required users, passwords and access levels using the

See “user” on page 86.

(

5. Set the radio’s basic configuration using front panel or Console interface

• Set the transmit/receive frequencies (
factory settings. (See

.)

PASSWD

“freq” on page 59

not

connected.

command. (

TX xxx.xxxx

.)

SUPER

.

See “passwd” on page 72.

USER

command, as required.

RX xxx.xxxx

/

) if they need to be changed from the

)

• Refer to this manual for other configuration settings.

6. Verify and set the following parameters as necessary to allow data throughput and intercon­nection with the network.

• RF transmit and receive frequencies. (See

• Radio modulation type and data rate parameters. (

• Data interface clocking. (

• Data framing. (

See “fstruct” on page 59.

See “clkmode” on page 55.

“freq” on page 59

).

See “modem” on page 71.

).

.)

).

Quick-Start instructions continued on the rear cover of this manual.

TABLE OF CONTENTS

1.0 INTRODUCTION ..................................................................................................................1

1.1 Product Description .......................................................................................................................1

1.2 LEDR Features ..............................................................................................................................2

1.3 Typical Applications .......................................................................................................................3

1.4 Protected Configuration .................................................................................................................3

2.0 MODEL NUMBER CODES...................................................................................................4

3.0 HARDWARE INSTALLATION AND BASIC INTERFACE REQUIREMENTS ........................7

3.1 Introduction ....................................................................................................................................7

3.2 General Requirements ..................................................................................................................7

Site Selection...................................................................................................................................8

Terrain and Signal Strength .............................................................................................................8

On-the-Air Test.................................................................................................................................9

A Word About Interference...............................................................................................................9

3.3 Antenna and Feedline Selection ..................................................................................................10

Antennas........................................................................................................................................10

Feedlines .......................................................................................................................................11

3.4 Radio Mounting ...........................................................................................................................13

Maximizing RSSI............................................................................................................................13

Attaching the Rack Mounting Brackets ..........................................................................................13

3.5 Front Panel ..................................................................................................................................14

Indicators, Text Display and Navigation Keys.................................................................................14

Connectors.....................................................................................................................................16

3.6 Rear Panel Connectors ...............................................................................................................17

Connector Locations......................................................................................................................17

Ground Stud...................................................................................................................................18

Antenna/TX—RF Connector..........................................................................................................18

RX—RF Connector........................................................................................................................18

G.703/Expansion Data...................................................................................................................19

Ethernet .........................................................................................................................................19

EIA-530-A ......................................................................................................................................20

Service Channel ............................................................................................................................20

Alarm I/O........................................................................................................................................21

DC Power Input (Primary Power)...................................................................................................22

Protected Configuration Connections............................................................................................23

3.7 Bandwidths, Data Rates and Modulation Types ..........................................................................23

3.8 Transmit Clock Selection (Subrate Radios Only) .........................................................................24

4.0 INITIAL STARTUP AND CONFIGURATION.......................................................................25

4.1 Introduction ..................................................................................................................................25

MDS 05-3627A01, Rev. D LEDR Series I/O Guide i

4.2 STEP 1—Power up the LEDR Radios .........................................................................................25

4.3 STEP 2—Establish Communications with the Radio ..................................................................26

4.4 STEP 3—Make Initial Login to Radio ..........................................................................................26

4.5 STEP 4—Change the SUPER Password ....................................................................................27

4.6 STEP 5—Review Essential Operating Parameters .....................................................................28

4.7 STEP 6—Set TCP/IP Settings to Enable SNMP and/or Telnet Management (if required) ..........29

4.8 STEP 7—Set User Configurable Fields .......................................................................................29

4.9 STEP 8—Verify Radio Performance ............................................................................................29

4.10 STEP 9—Install the Link ...........................................................................................................29

4.11 STEP 10—Verify the Link Performance ....................................................................................29

5.0 CONFIGURATION AND CONTROL VIA THE FRONT PANEL...........................................29

5.1 Front Panel LCD Menu Descriptions ...........................................................................................32

CONSOLE .....................................................................................................................................32

Default Screen...............................................................................................................................32

Diagnostics ....................................................................................................................................32

Front Panel.....................................................................................................................................33

G.821.............................................................................................................................................33

General..........................................................................................................................................34

IO Configuration.............................................................................................................................35

Line Configuration..........................................................................................................................36

Login..............................................................................................................................................38

Logout............................................................................................................................................38

Modem...........................................................................................................................................38

Network..........................................................................................................................................39

Orderwire.......................................................................................................................................40

Performance...................................................................................................................................40

Redundant .....................................................................................................................................41

Remote Status...............................................................................................................................42

RF Configuration............................................................................................................................42

6.0 CONFIGURATION AND CONTROL VIA THE CONSOLE PORT ......................................43

6.1 Introduction ..................................................................................................................................43

6.2 Initial Connection to the CONSOLE Port .....................................................................................44

6.3 NMS Commands .........................................................................................................................44

Command Entry Hints—Recalling Commands..............................................................................44

6.4 Command Detailed Descriptions .................................................................................................48

Introduction....................................................................................................................................48

6.5 Disabling the Front Panel Alarm LED for Unused E1 Option Ports .............................................88

7.0 STANDARDIZING RADIO CONFIGURATIONS..................................................................90

7.1 Introduction ..................................................................................................................................90

7.2 Setup by TFTP .............................................................................................................................91

Finding IP Addresses.....................................................................................................................91

Downloading Procedure.................................................................................................................91

Uploading Procedure.....................................................................................................................91

7.3 Setup Through the DB-9 CONSOLE Port ...................................................................................92

ii LEDR Series I/O Guide MDS 05-3627A01, Rev. D

8.0 UPGRADING LEDR FIRMWARE.......................................................................................93

8.1 Introduction ..................................................................................................................................93

8.2 OPTION 1: Uploading Firmware via the CONSOLE Port ............................................................94

Setup..............................................................................................................................................94

Download Procedure .....................................................................................................................94

Verification and Reboot..................................................................................................................94

8.3 OPTION 2: Uploading Firmware Locally by Telnet via Ethernet ..................................................95

Setup..............................................................................................................................................96

Download Procedure .....................................................................................................................96

Verification and Reboot..................................................................................................................97

8.4 OPTION 3: Uploading Firmware from a Remote Server via Ethernet .........................................97

Setup..............................................................................................................................................97

Download Procedure .....................................................................................................................98

Verification and Reboot..................................................................................................................99

9.0 USING ORDERWIRE.........................................................................................................99

9.1 Introduction ..................................................................................................................................99

9.2 Setup ...........................................................................................................................................99

9.3 Operation ...................................................................................................................................100

9.4 Related NMS Commands ..........................................................................................................101

10.0 USING THE SERVICE CHANNEL..................................................................................101

10.1 Concept ...................................................................................................................................101

10.2 Setup .......................................................................................................................................101

10.3 Usage ......................................................................................................................................102

10.4 NMS Commands .....................................................................................................................102

11.0 PROTECTED CONFIGURATION...................................................................................103

11.1 Introduction ..............................................................................................................................103

11.2 Protected Operation ................................................................................................................104

Transmitter Failure .......................................................................................................................104

Receiver Failure...........................................................................................................................105

11.3 Configuration Options—Warm or Hot Standby ........................................................................105

11.4 PSC Rear Panel Connectors ...................................................................................................105

RxA..............................................................................................................................................106

RxB..............................................................................................................................................106

Antenna........................................................................................................................................106

TxA...............................................................................................................................................106

TxB...............................................................................................................................................106

Protected (Data)...........................................................................................................................106

E1.................................................................................................................................................106

Ethernet .......................................................................................................................................106

530 (A&B) ....................................................................................................................................106

EIA-530-A ....................................................................................................................................107

Service Channel ..........................................................................................................................107

11.5 Inter-Unit Cabling for Protected Stations .................................................................................107

11.6 Configuration Commands for a Protected System ..................................................................108

MDS 05-3627A01, Rev. D LEDR Series I/O Guide iii

Redundant Specific Parameters..................................................................................................109

Sample Redundant Configuration Session..................................................................................109

Transmit Clock Selection (Subrate Models Only).........................................................................110

12.0 SPACE DIVERSITY OPERATION...................................................................................111

12.1 Introduction ..............................................................................................................................111

12.2 User Interface & Control ..........................................................................................................111

12.3 Transmit Clock Selection .........................................................................................................111

12.4 Inter-Unit Cabling for Space Diversity Stations ........................................................................112

13.0 SPARE PARTS, UNITS AND ACCESSORIES................................................................113

13.1 Spares .....................................................................................................................................113

13.2 Accessories .............................................................................................................................114

14.0 Fractional-T1 INTERFACE CARD 03-3846A01

Fractional-E1 INTERFACE CARD 03-3846A02........................................................................115

14.1 Introduction ..............................................................................................................................115

14.2 Fractional-T1/E1 Performance .................................................................................................115

14.3 Configurable Parameters .........................................................................................................116

Timeslots and Framing.................................................................................................................116

Line Codes...................................................................................................................................116

Diagnostics ..................................................................................................................................117

Clocking.......................................................................................................................................117

14.4 Field Installation of the FT1 Interface Board ............................................................................117

15.0 INCREASE BANDWIDTH BY CHANGING TRANSMITTER AND RECEIVER FILTERS.....

120

15.1 Introduction ..............................................................................................................................120

15.2 Filter Removal and Replacement ............................................................................................120

15.3 Software Commands ...............................................................................................................122

16.0 BENCH TESTING OF RADIOS......................................................................................122

17.0 TECHNICAL REFERENCE.............................................................................................123

17.1 Specifications—

Models: LEDR 400S, 700S, 900S and 1400S ...................................................................................123

17.2 Specifications—

Models: LEDR 400F, 900F, 1400F .....................................................................................................125

17.3 Specifications—

Protected Switch Chassis ..................................................................................................................126

17.4 Optional Equipment (Consult factory for detailed information) ................................................126

17.5 Accessories .............................................................................................................................127

17.6 I/O Connector Pinout Information ............................................................................................127

Orderwire—Front Panel ...............................................................................................................127

CONSOLE Port—Front Panel......................................................................................................127

Ethernet—Rear Panel..................................................................................................................128

iv LEDR Series I/O Guide MDS 05-3627A01, Rev. D

EIA-530-A Data—Rear Panel......................................................................................................128

G.703 Data Connectors (4)—Rear Panel....................................................................................128

Service Channel—Rear Panel.....................................................................................................129

Alarm—Rear Panel......................................................................................................................129

17.7 Watts-dBm-Volts Conversion ...................................................................................................129

18.0 RADIO EVENT CODES..................................................................................................130

19.0 IN CASE OF DIFFICULTY..............................................................................................138

19.1 FACTORY TECHNICAL ASSISTANCE ...................................................................................138

19.2 FACTORY REPAIRS ................................................................................................................139

To Our Customers

We appreciate your patronage. You are our business. We promise to serve and anticipate your needs. We will strive to
give you solutions that are cost effective, innovative, reliable and of the highest quality possible. We promise to build
a relationship that is forthright and ethical, one that builds confidence and trust.

Copyright Notice

This document and all software described herein are protected by copyright. Copyright 2003, Microwave Data Sys­tems Inc. All rights reserved. Trademarks held by other companies used in this publication are acknowledged to be
property of the holder.

RF

Exposure

Antenna Installation Warning

1. All antenna installation and servicing is to be performed by qualified technical personnel only. When servicing

the antenna, or working at distances closer than those listed in the tables below, ensure the transmitter has been

disabled.

Typically, the antenna connected to the transmitter is a directional (high gain) antenna, fixed-mounted on the

2.

side or top of a building, or on a tower. Depending upon the application and the gain of the antenna, the total com­posite power could exceed 20 to 50 watts EIRP. The antenna location should be such that only qualified technical
personnel can access it, and that under normal operating conditions no other person can touch the antenna or
approach within 4.34 meters of the antenna. This is a worst case scenario derived from maximum permissible exposure evaluation

for General Population/Uncontrolled Exposure using maximum permitted antenna gain (30 dBi) for LEDR Series

MDS 05-3627A01, Rev. D LEDR Series I/O Guide v

Manual Revision and Accuracy

While every reasonable effort has been made to ensure the accuracy of this manual, product improvements may result
in minor differences between the manual and the product shipped to you. If you have additional questions or need an
exact specification for a product, please contact our Customer Services group using the information at the back of this
guide. Microwave Data Systems reserves its right to correct any errors and omissions. Updated information may also
be available on our Web site at www.microwavedata.com .

Distress Beacon Warning

In the U.S.A., the 406 to 406.1 MHz band is reserved for use by distress beacons. Since the LEDR 400 radio is capable
of transmitting in this band, take precautions to prevent the radio from transmitting between 406 to 406.1 MHz.

RF Emissions

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules or ETSI specification ETS 300 385, as appropriate. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area
may to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

vi LEDR Series I/O Guide MDS 05-3627A01, Rev. D

1.0 INTRODUCTION

This manual is intended to help an experienced technician install, con­figure, and operate one of the digital radios in the MDS LEDR Series:
400S/F, 700S, 900S/F or 1400S/F. The manual begins with an overall
description of product features and is followed by the steps required to
install the radio and place it into normal operation.

After installation, we suggest keeping this guide near the radio for future
reference.

1.1 Product Description

The LEDR radio (Figure 1) is a full-duplex, point-to-point digital radio
operating in one of three radio frequency bands and at several band­widths as summarized in Table 1.

Table 1. Key LEDR Radio Characteristics

MODEL(S) BANDWIDTH(S) FREQ. RANGE INTERFACE

LEDR 400S 25/50/100/200 kHz 330-512 MHz FE1

LEDR 400F 0.5/1/2 MHz 330-512 MHz E1/G.703
LEDR 700S 25/50/100/200 kHz 746-794 MHz EIA-530
LEDR 900S 25/50/100/200 kHz 800-960 MHz FE1

LEDR 900F 0.5/1/2 MHz 800–960 MHz E1/G.703
LEDR 1400S 25/50/100/200 kHz 1350–1535 MHz FE1

LEDR 1400F 0.5/1/2 MHz 1350–1535 MHz E1/G.703

FT1
EIA-530

FT1
EIA-530

FT1
EIA-530

With the addition of an optional Fractional-T1 Interface card, a
LEDR 700S or 900S Series radio can be connected to industry-standard
G.703 T1 data interface equipment. See Page 115 for a complete
description of the Fractional-T1, Fractional-E1 and Full Rate E1
options.

All LEDR Series radios (with the exception of the 700S) are available
in a protected “1+1” configuration. The protected configuration consists
of two identical LEDR radios and a Protected Switch Chassis (Figure 2).
The protected configuration performs automatic switchover to a sec­ondary radio in the event of a failure in the primary unit. See PRO-

TECTED CONFIGURATION on Page 103 for detailed information on

this mode.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 1

In addition, the LEDR Series is available in a space-diversity configura­tion to allow dual receive paths to improve system availability. See

SPACE DIVERSITY OPERATION on Page 111 for detailed informa-

tion.

1.2 LEDR Features

• General— Common to all models

• Network Management via SNMPc version 1

• Protected Operation (1+1) Compatible

• 1.0 Watt Transmit Power

• Space-Efficient Rack Size (1RU)

• Rugged, Reliable Design

• Voice Orderwire (DTMF compliant)

• Service Channel (Data)

• Subrate Models—LEDR 400S/700S/900S/1400S

• 64, 128, 256, 384, 512* and 768* kbps Data Rates

• 12 x 64 kbps Data Rate with the FT1 or FE1 Interface Board
(LEDR radio with optional PCB installed)

* Contact factory for availability of these rates on the

LEDR 700S.

• Fullrate Models—LEDR 400F/900F/1400F

• 1 x E1 to 4 x E1 data rates

Invisible place holder

Figure 1. The LEDR Digital Radio

2 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

1.3 Typical Applications

• Point-to-point transmission applications

• Cost-effective, “thin route” applications

• Long haul telecommunications links

• Cellular backhaul

• Last-mile links

• Trunked radio links

• SCADA systems

1.4 Protected Configuration

A second configuration of the LEDR product is the protected configu-

ration in which two LEDR radios are monitored and controlled by a

third unit, the Protected Switch Chassis shown in Figure 2. This unit
provides a gateway for data and radio frequency paths to the LEDR data
radio transceivers. Unit performance is continuously measured and
should it fall below user-definable standards, the offline LEDR radio
will automatically be placed online and an alarm condition generated
that can be remotely monitored. Additional details for Protected Config­urations are given in Section 11.0 on Page 103.

Invisible place holder

Figure 2. LEDR Protected Switch Chassis (PSC)

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 3

MODEL NUMBER CODES
ARE SUBJECT TO
CHANGE.

DO NOT USE FOR
ORDERING PRODUCTS.

2.0 MODEL NUMBER CODES

The complete radio model number is printed on the serial number label
affixed to the chassis. The following series of figures (Figure 3, Figure 4
and Figure 5) show the significance of each character in the LEDR 400,
900 and 1400 model number string, respectively. Contact the factory for
LEDR 700S data, and for information on optional configurations.

Invisible place holder

DUPLEXER
N= None (Optional External) *
1 = 300–400 MHz *
2 = 400–520 MHz *
3 = 300–400 MHz; Protected @
4 = 400–520 MHz; Protected @
5 = 300–400 MHz; Space Diversity #
6 = 400–520 MHz; Space Diversity #

* Only available with Modes N, 2
@Only available with Modes 3, 5

CLASS
S =Subrate
F =Fullrate

LLLLEEEEDDDDRRRR 4444000000

PROTECTED/STANDBY
N= None *
W= Warm @
H= Hot @

* With Modes N, 2

@ With Modes 3–8

MODES
N= None; EIA -530 *
1=Not Used
2 = None; E1/Fractional-E1
3 = 1 + 1 EIA-530 *
4=Not Used
5 = 1 + 1 E1/Fractional-E1
6 = Space Diversity EIA-530 *
7= Not Used
8 = Space Diversity E1/Fract. E1

* Available in subrate radios

00

RECEIVE FREQ.
1 = 330–380 MHz
2 = 380–400 MHz
3 = 400–462 MHz
4 = 462–512 MHz

NOTES

1.TX and RX frequencies are limited to the range of the

2.TX and RX frequency separation is 27 MHz (minimum)

INPUT VOLTAGE
1 = 24 Vdc
2 = 48 Vdc

BANDWIDTH
A = 25 kHz *
B = 50 kHz *
C= 100 kHz *
D= 200 kHz *
E = 500 kHz @
F =1 MHz @ %
G= 2 MHz @ %

% See Note 2
@Only available with Fullrate radios

RX SPLITTER
N= None *
S = Symmetrical 3 dB @

* With Modes N, 2
@ With Modes 3–8

TRANSMIT FREQ.
A = 330–380 MHz
B = 380–400 MHz
C= 400–462 MHz
D= 462–512 MHz

subband indicated in fields 10 and 11.

REGULATORY
CERTIFICATION
N =Not Applicable
F =FCC/IC

Figure 3. LEDR 400 Series Model Number Codes

4 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Invisible place holder

MODEL NUMBER CODES
ARE SUBJECT TO
CHANGE.

DO NOT USE FOR
ORDERING PRODUCTS.

DUPLEXER
N= None (Optional External) *
1 = 9 MHz *
2 = 3.6 MHz (External) None *
3 = 760 MHz; None *
4 = 9 MHz; (Internal) Redundant @
5 = 3.6 MHz; (External) Redundant @
6 = 76 MHz; (Internal) Redundant @
7 = 9 MHz; (Internal) Space Diversity #
8 = 3.6 Mhz; (Internal) Space Diversity #
9 = 76 MHz; (Internal) Space Diversity #

* Only available with Modes N, 1
@Only available with Modes 3, 4
#Only available with Modes 6, 7

CLASS
S = Subrate
F =Fullrate

LLLLEEEEDDDDRRRR 9999000000

PROTECTED/STANDBY
N= None *
W= Warm @
H= Hot @

* With Modes N, 2

MODES
N= None; EIA-530*
1 = None; Fractional-T1*
2 = None; Fractional-E1%
3 = 1 + 1 EIA=530*
4 = 1 + 1 Fractional-T1*
5 = 1 + 1 Fractional-E1
6 = Space Diversity EIA-530
7 = Space Diversity T1
8 = Space Diversity; Fractional-E1

* = Available in subrate radios
% = Available in fullrate radios

00

INPUT VOLTAGE
1 = 24 Vdc
2 = 48 Vdc

RECEIVE FREQ.
1 = 800–860 MHz
2 = 860–900 MHz
3 = 900–960 MHz

See Note 1

NOTES

1.TX and RX frequencies are limited to the range of the

BANDWIDTH
A = 25 kHz *%
B = 50 kHz *%
C= 100 kHz *%
D= 200 kHz%
E = 500 kHz@
F =1 MHz@
G= 2 MHz@

* = Not available with Modes 1, 4, 7
% = Only available in subrate radios
@ = Only available in fullrate radios

REGULATORY
CERTIFICATION
N =Not Applicable

RX SPLITTER
N= None *
S = Symmetrical 3 dB @

* With Modes N, 1
@With Modes 3–8

TRANSMIT FREQ.
A = 800–860 MHz
B = 860–900 MHz
C= 900–960 MHz

F =FCC/IC

Figure 4. LEDR 900 Series Model Number Codes

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 5

MODEL NUMBER CODES
ARE SUBJECT TO
CHANGE.

DO NOT USE FOR
ORDERING PRODUCTS.

DUPLEXER
N= None (Optional External) &
R= None (Wired for External) Redundant *
1 = Internal &
2 = Internal; Space Diversity %

* Only available with Modes 3, 5
%Only available with Modes 6, 8
&Only available with Modes N, 2

CLASS
S =Subrate
F =Fullrate

LLLLEEEEDDDDRRRR 11114444000000

MODES
N= None; EIA=530 *
1=Not Used
2 = None; E1/ Fractional-E1
3 = 1 + 1 EIA-530 *
4=Not Used
5 = 1 + 1 E1/ Fractional-E1
6 = Space Diversity EIA-530 *
7= Not Used
8 = Space Divers. E1/Frac. E1

* Available in subrate radios

00

Invisible place holder

INPUT VOLTAGE
1 = 24 Vdc
2 = 48 Vdc

BANDWIDTH
A = 25 kHz *
B = 50 kHz *
C= 100 kHz *
D= 200 kHz *
E = 500 kHz @
F =1 MHz @
G= 2 MHz @

@Only available with Fullrate radios
* Only available with Subrate radios

RX SPLITTER
N= None *
S = Symmetrical 3 dB @

* With Modes N, 2
@With Modes 3–8

REGULATORY
CERTIFICATION
N =Not Applicable
E =ETS 300 630,

ETS 300 385,
MPT 1717

PROTECTED/STANDBY
N= None *
W= Warm @
H= Hot @

* With Modes N, 2
@With Modes 3–8

Figure 5. LEDR 1400 Series Model Number Codes

6 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

3.0 HARDWARE INSTALLATION AND BASIC INTERFACE REQUIREMENTS

3.1 Introduction

Installation of the LEDR radio transceiver is not difficult, but it does
require some planning to ensure optimal efficiency and reliability. There
are two major installation objectives; first, obtain good radio communi­cations between LEDR sites, and second, configure the data interface to
complement your data equipment.

This section provides information to assist you in successfully com­pleting the first phase of installation. You will find tips for selecting an
appropriate site, choosing antennas and feedlines, minimizing the
chance of interference, and the basics of equipment installation. This
material should be reviewed before beginning the radio hardware equip­ment installation.

When the radio installation is successfully complete, you will need to
address the data interface and operational configuration of the LEDR
radio. It is likely that the radio has been configured by the factory to
meet your basic data interface requirements. Please review the factory
documentation accompanying your shipment for the radios current con­figuration.

What ever your situation, it is recommended you review the material in
the rest of the manual to gain insight to additional configuration options
and user functions.

3.2 General Requirements

There are four main requirements for installing the radio transceiver—a
suitable installation environment, adequate and stable primary power, a
good antenna system, and the correct interface between the transceiver
and the external data equipment. Figure 6 shows a typical station
arrangement.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 7

Invisible place holder

DATA INTERFACE

TO DC

POWER SOURCE

(24 or 48 Vdc as appropriate)

CHASSIS GROUND

LEDR RADIO

GRID DISH

ANTENNA

LOW LOSS

COAXIAL CABLE

Figure 6. Typical Station Arrangement

Site Selection

For a successful installation, careful thought must be given to selecting
proper sites for the radios and antenna systems. Suitable sites should
offer:

• An antenna location that provides an unobstructed path in the
direction of the associated station

• A source of adequate and stable primary power

• Suitable entrances for antenna, interface or other required
cabling

• Adequate clearance around the radio for ventilation

These requirements can be quickly determined in most cases. A possible
exception is the first item—verifying that an unobstructed transmission
path exists. Microwave radio signals travel primarily by line-of-sight,
and obstructions between the sending and receiving stations will affect
system performance.

If you are not familiar with the effects of terrain and other obstructions
on radio transmission, the following discussion will provide helpful
background.

Terrain and Signal Strength

A line-of-sight path between stations is highly desirable, and provides
the most reliable communications link in all cases. A line-of-sight path
can often be achieved by mounting each station antenna on a tower or
other elevated structure that raises it to a level sufficient to clear sur­rounding terrain and other obstructions.

8 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

The requirement for a clear transmission path depends upon the distance
to be covered by the system. If the system is to cover only a limited dis­tance, say 5 km (3.1 miles), then some obstructions in the transmission
path may be tolerable. For longer-range systems, any obstruction could
compromise the performance of the system, or block transmission
entirely.

The signal strength at the receiver must exceed the receiver sensitivity
by an amount known as the fade margin to provide reliable operation
under various conditions.

Detailed information on path planning should be reviewed before begin­ning an installation. Computer software is also available for this purpose
that can greatly simplify the steps involved in planning a path.

Microwave Data Systems offers path analysis (for paths in the USA) as
an engineering service. Contact the factory for additional information.

On-the-Air Test

If you’ve analyzed the proposed transmission path and feel that it is
acceptable, an on-the-air test of the equipment and path should be con­ducted. This not only verifies the path study results, but allows you to
see firsthand the factors involved at each installation site.

The test can be performed by installing a radio at each end of the pro­posed link and checking the Received Signal Strength Indication (RSSI)
value reported at the front panel LCD screen of each radio. If adequate
signal strength cannot be obtained, it may be necessary to mount the sta­tion antennas higher, use higher gain antennas, or select a different site
for one or both stations.

A Word About Interference

Interference is possible in any radio system. However, since the LEDR
radio is designed for use in a licensed system, interference is less likely
because frequency allocations are normally coordinated with consider­ation given to geographic location and existing operating frequencies.

The risk of interference can be further reduced through prudent system
design and configuration. Allow adequate separation between frequen­cies and radio systems.

C/I Curves

A carrier to interference (C/I) curve can help in frequency and space
coordination. The information in this curve can aid greatly in helping
plan geographic locations and frequency usage for radio systems. Con­tact the factory for additional information on carrier to interference
curves. A white paper (publication no. 05-3638A01) on the subject is
available from MDS at www.microwavedata.com. Search for the term
“LEDR” under the manuals download area to see this, and all other pub­lications pertaining to the LEDR series.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 9

Keep the following points in mind when setting up your point-to-point
system:

1. Systems installed in lightly populated areas are least likely to
encounter interference; those in urban and suburban environments
are more likely to be affected by other devices operating in the
radio’s frequency band and adjacent services.

2. Directional antennas must be used at each end of a point-to-point
link. They confine the transmission and reception pattern to a com­paratively narrow beam, which minimizes interference to and from
stations located outside the pattern. The larger the antenna, the more
focused the transmission and reception pattern and the higher the
gain.

3. If interference is suspected from another system, it may be helpful
to use antenna polarization that is opposite to the interfering sys­tem’s antennas. An additional 20 dB (or more) of attenuation to
interference can be achieved by using opposite antenna polarization.
Refer to the antenna manufacturer’s instructions for details on
changing polarization.

3.3 Antenna and Feedline Selection

Antennas

The antenna system is perhaps the most crucial part of the system
design. An antenna system that uses poor quality feedline, or is improp­erly aligned with the companion site, will result in poor performance, or
no communication at all.

A directional antenna must be used for point-to-point systems to mini­mize interference both to and from nearby systems. In general, cylin­drical or dish type antennas with a parabolic reflector must be used. Yagi
or corner reflector types may be acceptable in some applications. Check
government regulations for your region.

The exact style of antenna used depends on the size and layout of a
system. In most cases, a directional “dish” type of antenna is used with
the radio (Figure 7). Dish antennas maximize transmission efficiency
and restrict the radiation pattern to the desired transmission path.

10 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Invisible place holder

Figure 7. Typical Grid Dish Antenna

Table 2 lists common grid dish antenna sizes and their approximate

gains. Note: Each antenna is designed to operate within only one fre­quency band.

Table 2. Dish antenna size vs. approximate gain (dBi)

Antenna Size

Meters (feet)

1.2 Meters

(4 feet)

2.0 Meters

(6 feet)

3.0 Meters

(10 feet)

4.0 Meters

(12 feet)

400 MHz

Gain

13.1 dBi 15.85 dB 18.4 dBi 23.7 dBi

16.3 dBi 19.05 dB 22.0 dBi 26.1 dBi

19.6 dBi 22.35 dB 26.4 dBi 30.6 dBi

22.2 dBi 24.95 dB 28.0 dBi 32.1 dBi

700 MHz

Gain

900 MHz

Gain

1400 MHz

Gain

MDS can furnish antennas for use with your LEDR radio. Consult your
sales representative for details.

Feedlines

For maximum performance, a good quality feedline must be used to
connect the radio transceiver to the antenna. For short-range transmis­sion, or where very short lengths of cable are used (up to 8 Meters/26
Feet), an inexpensive coax cable such as Type RG-213 may be accept­able.

For longer cable runs, or for longer-range communication paths, we rec­ommend using a low-loss cable suited for the frequency band of opera-

™

tion. Helical transmission lines, such as Andrew Heliax

or other
high-quality cable will provide the lowest loss and should be used in
systems where every dB counts. Whichever type of cable is used, it
should be kept as short as possible to minimize signal loss.

Remember that cable loss increases in direct proportion to the transmis­sion frequency used. This means that a system operating at 900 MHz
will experience more cable loss than one operating at 400 MHz.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 11

The following tables (3, 5, 6 and 6) can be used to select an acceptable
feedline. A table is provided for each of the three bands for which the
LEDR radios are available.

Table 3. Feedline Loss Table (450 MHz)

Cable Type

RG-8A/U 0.5 dB 2.5 dB 5.1 dB 25.4 dB
1/2 in. HELIAX 0.1 dB 0.8 dB 1.5 dB 7.6 dB
7/8 in. HELIAX 0.1 dB 0.4 dB 0.8 dB 4.2 dB
1-1/4 in. HELIAX 0.1 dB 0.3 dB 0.6 dB 3.1 dB
1-5/8 in. HELIAX 0.1 dB 0.3 dB 0.5 dB 2.6 dB

3.05 Meters
(10 Feet)

15.24 Meters
(50 Feet)

30.48 Meters
(100 Feet)

152.4 Meters
(500 Feet)

Table 4. Feedline Loss Table (700 MHz)

Cable Type

RG-8A/U 0.7 dB 3.4 dB 6.8 dB 34.0 dB
1/2 in. HELIAX 0.2 dB 1.0 dB 1.9 dB 9.5 dB
7/8 in. HELIAX 0.1 dB 0.5 dB 1.1 dB 5.3 dB
1-1/4 in. HELIAX 0.1 dB 0.4 dB 0.8 dB 3.9 dB
1-5/8 in. HELIAX 0.1 dB 0.3 dB 0.7 dB 3.3 dB

3.05 Meters
(10 Feet)

15.24 Meters
(50 Feet)

30.48 Meters
(100 Feet)

152.4 Meters
(500 Feet)

Table 5. Feedline Loss Table (960 MHz)

Cable Type

RG-8A/U 0.9 dB 4.3 dB 8.5 dB

1/2 in. HELIAX 0.2 dB 1.2 dB 2.3 dB 11.5 dB
7/8 in. HELIAX 0.1 dB 0.6 dB 1.3 dB 6.4 dB
1-1/4 in. HELIAX 0.1 dB 0.5 dB 1.0 dB 4.8 dB
1-5/8 in. HELIAX 0.1 dB 0.4 dB 0.8 dB 4.0 dB

3.05 Meters
(10 Feet)

15.24 Meters
(50 Feet)

30.48 Meters
(100 Feet)

152.4 Meters
(500 Feet)

unacceptable

loss

Table 6. Feedline Loss Table (1400 MHz)

Cable Type

RG-213 3.0 dB 6.0 dB 12.1 dB 24.1 dB
1/2 in. HELIAX 0.7 dB 1.5 dB 2.9 dB 5.9 dB
7/8 in. HELIAX 0.4 dB 0.8 dB 1.7 dB 3.3 dB
1-5/8 in. HELIAX 0.3 dB 0.3 dB 1.1 dB 2.1 dB

8 Meters
(26 Feet)

15 Meters

(49 Feet)

30 Meters

(98 Feet)

61 Meters
(200 Feet)

12 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

3.4 Radio Mounting

The radio can be mounted either in a 19-inch equipment rack or on a
table top. It should be located in a relatively clean, dust-free environ­ment that allows easy access to the rear panel connectors as well as front
panel controls and indicators. Air must be allowed to pass freely over the
ventilation holes and heat sink on the side panel.

The dimensions of LEDR Series radios are:

• 305 mm (12 in) deep

• 426 mm (16.75 in) wide—Excluding rack mounting brackets

• 45 mm (1.75 in) high—1RU

Maximizing RSSI

For newly installed systems, one of the first tasks is to orient the station
antenna for a maximum Received Signal Strength Indication (RSSI) as
shown on the LCD screen. See “Performance” on Page 40 for details. A
maximum RSSI ensures the antenna is properly aimed at the associated
station. Move the antenna slowly while an assistant observes the RSSI
display for a maximum reading. There may be a time delay between
moving the antenna and updating of the RSSI display. Be sure to allow
adequate time between antenna movements and observations.

Attaching the Rack Mounting Brackets

The radio is normally shipped with the rack mounting brackets unin­stalled. To attach them, select the desired mounting position on the sides
of the chassis. (The brackets may be mounted in one of two locations—
flush with the front panel, or near the middle of the chassis.)

NOTE: Both short and long screws are provided with the brackets. Use

the long screws for the heatsink (left) side of the chassis and
the short screws for the right side of the chassis. Tighten the
screws securely.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 13

3.5 Front Panel

Indicators, Text Display and Navigation Keys

Figure 8 shows the details of the LEDR radio’s front panel indicators,

LCD text display, and menu navigation keys.

STATUS LEDS

LED Indicators

LCD TEXT DISPLAY

SCROLL MODE
INDICATOR SYMBOL

ALARM STATUS LEDS

MENU NAVIGATION KEYS

Figure 8. Front Panel Indicators, Text Display and Keys

The front panel LEDs indicate various operating conditions as outlined
in Table 7.

Table 7. Front Panel LED Functions

LED Indications

POWER
ACTIVE

ALARM
RX ALARM

TX ALARM
I/O ALARM

Primary power is applied to radio
This radio is the on-line/active unit in a

redundant configuration.
A general alarm condition is present

The modem is not locked to a receive
signal

There is a problem with the transmitter
There is a payload data interface error

LCD Display
& Keys

The LCD display provides a two line by 16-character readout of radio
status and parameter settings. It is used with the menu navigation keys
on the right side of the front panel to control the radio’s operation and
access diagnostic information.

Use of the navigation keys (Figure 9) is simple, and allows many basic
operating tasks to be performed without connecting an external terminal
or using additional software.

14 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Invisible place holder

Figure 9. Menu Navigation Keypad

The keys can be used for two tasks—navigating through menus, and
editing user controllable parameters. The functions of the keys are auto­matically selected according to the screen that is being viewed by the
user.

Menus The LEDR radio contains 16 primary menus as listed below. These pri-

mary menus serve as entry points to a variety of submenus that can be
used to view or adjust operating parameters and diagnose the radio link.

• Login

• Logout

• Network

• General

• RF Config(uration)

• IO Config(uration)

• Line Config(uration)

• Performance

• G.821

• Diagnostics

• Orderwire

• Front Panel

• Redundant

• Remote Status

See Front Panel LCD Menu Descriptions on Page 32 for detailed
descriptions of all menu items.

Menu Navigation The left and right keys ( ) provide navigation through the available

top level menus (see menu tree, Figure 9) and through series of subordi­nate menus.

ENTER

The
menus, exposing another menu level. The key always exits the cur-

key allows entry into each primary menu’s subordinate

ESCAPE

rent screen, causing the program to “pop up” one level in the hierarchy.

Parameter Selection
and Data Entry

With an editable menu, such as Login, pressing the key puts the
screen into a data entry mode. Front panel keys are used in one of three

ENTER

ways: 1. character and string creation/selection, 2. scrolling through
lists, and 3. adjusting horizontal slider bars.

1. Character and String Creation/Selection— With some
menus, it is necessary to enter a string of alphanumeric charac­ters. A good example is entering a password at the user

login

menu. In this example, the string is built one character at a time,
and the string is built from left to right on the display.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 15

The left and right arrow keys move the cursor in the corre-

ENTER

ESCAPE

ENTER

sponding direction. When the cursor is below the character you
wish to change, press

. The arrow keys are then used to step

though the character set, beginning with numbers, then upper­case letters and finally lowercase letters. Each time you press
one of the arrow keys, the display will step to the next character.
If you press and hold the arrow key for several seconds, the char­acters will scroll by very quickly.

After you have built the string of characters you need, press the

ENTER

key to save the string on the display and return to cursor

navigation mode. To save all changes you have made, place the
cursor under the special carriage return symbol ( ) and press

ENTER ESCAPE

. Pressing will revert the arrow keys to the cursor nav-

igation mode. Pressing in cursor navigation mode cancels
character edit mode without saving any changes.

2. Scrolling Lists/Values— Uses left and right keys ( ) to
scroll through a list of choices or adjust a numeric value, such as

PPPPoooowwwweeeerrrr OOOOuuuutt

tt

. When you are in a menu with a series of fixed parame­ters, the vertical scroll character ( ) will appear while you are in
the editing/selection mode. If you are asked to select or change
more than one character, you will see a horizontal scroll symbol
( ) in the bottom right-hand corner of the display and a cursor
will appear under the character being edited or changed.

When the desired parameter is in view, move the cursor to the
right as far as it will go, until a carriage return symbol ( )
appears. Pressing the
if your access privileges permit. Pressing cancels the selec-

key will save the selection to its left,

ESCAPE

tion and exits without saving the change.

3. Slider Bar Adjustment—Some menus display a horizontal
bar that changes its length to indicate the level for parameters
that use relative values such as the Orderwire Volume and VOX
threshold. (See Orderwire on Page 40.) Press the key to

increase the value and the to lower the value. Press

ENTER

save the current setting.

Connectors

The front panel of the LEDR radio (Figure 10) has two connectors; both
of them are located on the lefthand side of the panel.

Orderwire The RJ-11 jack with the telephone symbol above it is to connect an

orderwire handset. The orderwire is used by service personnel to com­municate through the Service Channel to coordinate system activities
with personnel at another site in the network. The orderwire will not
interrupt the normal data flow through the LEDR data communication

to

16 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

channel, however, it will reduce the throughput efficiency of any data
communications on the Service Channel during periods of voice trans­mission. See “USING ORDERWIRE” on Page 99 for more informa­tion.

CONSOLE The second connector is a DB-9 type with a computer icon over it. Here

is where you can connect a computer’s serial port for unit configuration,
diagnostics and firmware upgrades to the radio.

Invisible place holder

CONSOLE

ORDERWIRE HANDSET

(COMPUTER)

Figure 10. LEDR Front Panel

(All models Identical)

3.6 Rear Panel Connectors

The rear panel of the LEDR radio transceiver contains a number of con­nectors to interface with the radio’s antenna system, data equipment,
and user remote data network monitoring and control equipment.

Connector Locations

LEDR “S” Series The rear panel of the LEDR “S” Series radios is shown in Figure 11.

Refer to the descriptions that follow for specific information regarding
rear panel connections.

Invisible place holder

• Four RJ-45 connectors with FT1/FE1 Interface PCB installed

• Only one RJ-45 port is active based on selection. See “linename” command.

• DB-68 Connector for interface to Protected Switch Chassis

• If vacant, EIA-530 connector to right is the active data connector.

RX

ANTENNA SYSTEM

CONNECTORS

Note: RX Connector present with external duplexer only.

Antenna/TX

External Duplexer

COOLING FAN

G.703/Expansion Data

1342

ETHERNET

Ethernet

NMS

Data Interface

DATA CONNECTOR

SERVICE CHANNEL

EIA-530-A

Service

Channel

ALARM INPUT & OUTPUT

Alarm I/O DC Power Input

Figure 11. LEDR 400S/700S/900S/1400S Rear Panels

(Shown with Optional FT1/FE1 Interface PCB Installed)

Power Plug

Detail (see text)

DC PRIMARY

POWER

GND

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 17

LEDR “F” Series The rear panel of the LEDR “F” Series radios is shown in Figure 12.

Refer to the descriptions that follow for specific information regarding
rear panel connections.

Invisible place holder

• Four RJ-45 connectors

• DB-68 Connector for G.703 interface to Protected Switch Chassis.

ETHERNET

SERVICE CHANNEL

Power Plug

Detail (see text)

RX

ANTENNA SYSTEM

Note: RX Connector present with external duplexer only.

Antenna/TX

External Duplexer

COOLING FAN

CONNECTORS

Ground Stud

The ground stud on the rear panel provides a point to connect the radio’s
chassis to an Earth ground. This connection is very important for

proper operation of the radio. Do not rely on a ground connection
being made through the rack mounting brackets or other radio
cabling.

Antenna/TX—RF Connector

The

ANTENNA/TX connector is an N-type coaxial connector. When an

internal duplexer is installed, it serves as the connection point for the
station antenna. When an external duplexer is used, it acts as the trans­mitter RF output (TX) connector to the duplexer.

G.703/Expansion Data

1342

Ethernet

NMS

Data Interface

(Not functional on “F” models)

EIA-530-A

DATA CONNECTOR

Service
Channel

ALARM INPUT & OUTPUT

Alarm I/O DC Power Input

Figure 12. LEDR 400F/900F/1400F Rear Panel

DC PRIMARY

POWER

GND

RX—RF Connector

The

RX (receive) connector is an N-type coaxial connector. It is only

installed if the radio is supplied for use with an external duplexer. It car­ries receive signals (RX) from the duplexer to the LEDR radio’s
receiver.

When an external duplexer is used, ensure that the higher frequency
(transmit or receive) is connected to the duplexer connector marked

HI

and the lower frequency (transmit or receive) is connected to the
duplexer marked

18 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

LO.

G.703/Expansion Data

The type of connector(s) at this location on the rear panel depends on
several factors: the type of interface required by the customer premises
equipment (CPE) and whether or not the radio is part of a protected
(redundant) configuration. See Table 8 for details.

Table 8. G.703/Expansion Data Connector

Model(s) Configuration Data

LEDR 400S
LEDR 700S
LEDR 900S
LEDR 1400S

LEDR 900S Stand-alone FT1 4 x RJ-45—Only one port is

LEDR 400S
LEDR 900S
LEDR 1400S

LEDR 400F
LEDR 900F
LEDR 1400F

LEDR 400F/S
LEDR 900S
LEDR 1400F/S

NOTES:

1. The capacity of the 4E1 interface can be reduced to one (1E1) or two circuits (2E1).
See linemap command on

2. For RJ-45 pinout information, see

3. This 68-pin interface connector is used only to pass the user data interface, the
Service Channel, and the orderwire circuits to the Protected Switch Chassis for
distribution. Fully-wired DB-68 computer cables (commonly used to interconnect
SCSI computer devices) can be used with this data port connector.

Stand-alone EIA-530 Blank. No connector(s)

Stand-alone FE1 4 x RJ-45—Only one port is

Stand-alone 4E1 4 x RJ-45—All four jacks (A,

Protected All DB-68 (See Note 3)

Page 66, for configuration information.

Interface

Figure 36 on Page 128.

G.703/Expansion
Connector

installed.

active based on linemap
selection.

active based on linemap
selection.

B, C & D) are active.

Notes 1 & 2)

(See Note 2)

(See Note 2)

(See

Ethernet

The ETHERNET connector provides access to the embedded SNMP
agent and other elements of the TCP/IP network-management interface.
The connector is a standard 10Base-T connection with an RJ-45 mod­ular connector. The LEDR Ethernet connections are provided for remote
equipment management (NMS).

Ethernet in
a Repeater
Configuration

At a repeater site with two LEDR radios, the ETHERNET connectors of
each chassis must be connected to each other through a cross-connect
cable or using standard cables to an Ethernet hub. This inter-chassis
Ethernet connection must be made in order for the Orderwire and Ser­vice Channel to function properly. (See Figure 13 on Page 21 for further
information.)

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 19

Ethernet in
a Protected
Configuration

The Ethernet connections on the LEDR radio chassis in a protected con­figuration should not be used. The Ethernet connector of the Protected
Switch Chassis (PSC) provides a connection to the two radio units. Each
radio has a unique IP address and is individually addressable/control­lable using SNMP over IP. See “PROTECTED CONFIGURATION”
on Page 103 for general information and Figure 34 on Page 128 for

ETHERNET connector pinout details.

EIA-530-A

The EIA-530-A connector is the main data input/output connector for
the subrate radio. The EIA-530 interface is a high-speed serial data con­nector. For detailed pin information, see “EIA-530-A Data—Rear

Panel” on Page 128.

NOTE: This connector is not operational on LEDR “F” Series (fullrate)
models.

Service Channel

The Service Channel provides a transparent ASCII “pipe” to which any
RS-232/EIA-232 device can be connected at data rates between 300 and
9600 bps. Whatever ASCII data is entered onto the network through the
Service Channel Port will be sent to the local radio and broadcast to any
other device connected to the Service Channel Port on other associated
LEDR radios in the network.

The Service Channel’s function is identical for all LEDR configura­tions—stand-alone, repeater, and redundant.

NOTE: Use of the orderwire will slow down data communications on

the Service Channel. It will not effect data traffic on the
primary data interface.

For detailed information on this 9-pin connector, see “Service

Channel—Rear Panel” on Page 129.

20 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Repeater
Configuration

(Radios with external duplexer)

Data and RF cabling for the repeater station configuration is shown in

Figure 14.

TO DUPLEXER

OF ANTENNA SYSTEM A

TO ANTENNA SYSTEM A
(Radios with internal duplexers)

G.703/Expansion Data

Ethernet

NMS

EIA-530-A

Service

Channel

RADIO A

Alarm I/O DC Power Input

RX

RX

OF ANTENNA SYSTEM B

(Radios with external duplexer)

Protected
Configuration

External

External

TO DUPLEXER

TX

CROSSOVER CABLES

TX

UP TO 4 x G.703

(Fullrate only)

G.703/Expansion Data

TO ANTENNA SYSTEM B
(Radios with internal duplexers)

Data Interface

Ethernet

NMS

Data Interface

ETHERNET CROSSOVER CABLE

SEPARATE CONNECTIONS TO HUB

EIA-530-A

OR

(As Required)

EIA-530 NULL-MODEM
CROSSOVER CABLE
(Subrate Only)
P/N 97-2841L06 (6´/1.8 m)

Service

Channel

Alarm I/O DC Power Input

Figure 13. Inter-unit Cabling—Repeater Configuration

The Service Channel connections on the LEDR radio chassis in a pro­tected configuration should not be used. The

SERVICE CHANNEL con-

nector of the Protected Switch Chassis (PSC) provides a connection to
the two radio units. For further information on protected configurations
please see “PROTECTED CONFIGURATION” on Page 103.

RADIO B

Alarm I/O

This is a 9-pin connector that has both inputs and outputs.

Output Contacts The ALARMS Port is outfitted with four optically-isolated relays that are

controlled by the LEDR radio’s CPU. The contacts (Pins 6, 7, 8, & 9)
are normally open and can handle a non-inductive load of ±60 Volts
Peak (AC/DC) at a maximum current of 1 Ampere. These are suitable
for the control of an external device or indicator when a radio event
occurs.

An alarm output could be used, for example, to sound a claxon when the
radio link goes down, or when the battery for the real-time clock is low.
Another example is to use the alarm outputs to drive the inputs of an
external monitoring system. (See the list of radio events for more
options.) These outputs are not suitable for data interface without the use
of an external “debouncing” circuit.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 21

Input Connections In addition, four external alarm input lines (Pins 1, 2, 3 & 4) are pro-

vided. Normally, the input is either left open or shorted to ground, to
indicate an alarm condition.

Each alarm input is diode-clamped to +3.3 Vdc or chassis ground, and
can tolerate inputs from -4 to +6 Vdc without drawing excessive current.
If left open, each input is pulled up. To indicate an alarm condition, short
the input pin to the ground provided on the alarm connector (Pin 5). The
maximum DC loop resistance is 2 KΩ. These alarm input lines can tol­erate circuit “bounce” common with mechanical relays.

NOTE: The normal (unalarmed) state of the contacts (open or closed)

or input alarm state (high or low) can be selected by a software
subcommand. See “alarm” on Page 50 for details.

Alarm Events The events that cause alarm output signals can be configured in the radio

software. See “evmap” on Page 58 for information on programming
which events trigger an alarm.

See Figure 38 on Page 129 for Alarm I/O pinout information.

DC Power Input (Primary Power)

CAUTION

CAUTION

PPPPOOOOSSSSSSSSIIIIBBBBLLLLEE
EEEEQQQQUUUUIIIIPPPPMMMMEEEENNNNTT
DDDDAAAAMMMMAAAAGGGGEE

EE

POSSIBLE

TT

EQUIPMENT

EE

DAMAGE

The

DC POW ER INPUT connector is a three-pin keyed connector used to

connect an external DC power source. A label next to the power con­nector indicates the nominal voltage of the radio. Table 9 lists the actual
operating voltage ranges.

The connector matches with a power plug (MDS Part No. 73-1194A22)
which contains binding posts for attaching the positive and negative
power leads. The polarity of the power connections does not matter; the
positive and negative leads may be connected to either the left or right
binding posts as shown in Figure 11 and Figure 12. The center con­ductor is not connected in the LEDR chassis and should be left unwired.

Table 9. Primary Power Input Options

Nominal Voltage Operating Range

24 Vdc 19.2 to 28.8 Vdc
48 Vdc 38.4 to 57.6 Vdc

Before connecting primary power to the radio, verify that the source
provides a voltage within the proper operating range. Improper voltages
may damage the equipment. Permissible voltage limits are shown in

Table 9.

22 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Protected Configuration Connections

There are several connections between the LEDR radio chassis and the
Protected Switch Chassis. They include the primary data interface, RF,
Ethernet, orderwire and Service Channel. Details on cabling and other
items relating to the protected (redundant) configuration appear in PRO-

TECTED CONFIGURATION on Page 103.

3.7 Bandwidths, Data Rates and Modulation Types

The hardware in the LEDR chassis is configured at the factory for a spe­cific bandwidth. However, the modulation type and data rate can be
changed as long as the bandwidth is sufficient to support the modulation
type and data rate. (If you need to change your radio’s bandwidth,
please see “INCREASE BANDWIDTH BY CHANGING TRANS-

MITTER AND RECEIVER FILTERS” on Page 120 for details.)

Use of the

modem command (Page 71) and configuration ([argument])

code automatically sets the combination of data rate, bandwidth and
modulation type if the radio is capable of supporting it

Table 10 shows the combinations of radio bandwidth, data rates and

modulation types that are available for subrate radios at the time of pub­lication. Table 11 shows the combinations available for fullrate radios.

Table 10. Subrate Bandwidth vs. Modem Selection Code

Radio
Bandwidth

25 kHz B1 64 kbps 16-QAM

50 kHz A1 64 kbps QPSK

100 kHz A1 64 kbps QPSK

200 kHz A1 64 kbps QPSK

Configuratio
n Code

C1 64 kbps 32-QAM

B2 128 kbps 16-QAM

A2 128 kbps QPSK
B3 256 kbps 16-QAM

A2 128 kbps QPSK
B3 256 kbps 16-QAM
B4 384 kbps 16-QAM
B5 512 kbps 16-QAM
C6 768 kbps 32-QAM

Data Rate(s)

Modulation

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 23

Table 11. Fullrate Bandwidth vs. Modem Selection Code

Radio
Bandwidth

500 kHz C7 E1 32-QAM
1000 kHz B7 E1 16-QAM

2000 kHz A7 E1 QPSK

Configuratio
n Code

C7 E1 32-QAM
C8 2E1 32-QAM

B7 E1 16-QAM
B8 2E1 16-QAM
C8 2E1 32-QAM
C10 4E1 32-QAM

Data
Rate(s) Modulation

3.8 Transmit Clock Selection (Subrate Radios Only)

For a subrate radio, transmit clock arrangement must be set by the user.
Clocking arrangements for fullrate radios is automatically handled by
the LEDR radios.

It is essential that there be only one master clock in a subrate radio net­work. The master clock can originate from the radio or from the Cus­tomer Premises Equipment (CPE).

LEDR radios are capable of several different clocking modes. Refer to

Figure 14 and Figure 24 for typical system clocking arrangements.

Refer to the CC
radio transmit clocking from the front panel. Refer to the

CClllloooocccckkkk MMMMooooddddeeee

screen description on Page 35 for setting the

clkmode

description on Page 55 for setting the radio transmit clocking mode from
the front panel

CONSOLE Port.

NOTE: When customer premises equipment (CPE) is operated in

looped clock mode, it is recommended that the radio not be set
to line clock mode. To do so may cause the transmitting
radio’s PLL to be pulled out-of-lock, especially when oper­ating at 4E1 data rates.

24 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

SITE A SITE B

CPE

Customer Premises
Equipment (CPE)

Internal Clock External Clock Looped Clock External Clock

External Clock Internal Clock Looped Clock External Clock

LEDR Radio
Clock Source

Over-the-Air RF Path

LEDR Radio
Clock Source

Customer Premises
Equipment (CPE)

CPE

Figure 14. EIA-530 Clocking Arrangements for

Protected (1+1) LEDR Radio Operation

4.0 INITIAL STARTUP AND

CONFIGURATION

4.1 Introduction

The radio is commonly configured to parameters provided by the cus­tomer at the time the order was placed. Even so, there are some param­eters that must be reviewed and set during installation. The following
steps summarize the initial set-up of a LEDR radio link. If this is your
first installation of a LEDR radio system, it is recommended the equip­ment be set up on a test bench.

4.2 STEP 1—Power up the LEDR Radios

There is no primary power switch; simply connecting primary power to
the unit will start the radio operating. After a short self-test, a “default
screen” similar to the following appears on the radio’s LCD display:

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
RRRRSSSSSSSSIIII:::: ----66660000 ddddBBBBmm

NOTE: The LEDR radio is normally keyed continuously, and the radio

will transmit whenever power is applied. Ensure there is a suit­able load on the antenna connector before connecting power.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 25

mm

4.3 STEP 2—Establish Communications with the

Radio

There are four different methods available to set radio parameters and
query the radio. They are:

• Front Panel—The front panel is intended to serve as a convenient user inter-

face for local radio management. Most, but not all, parameters and functions
are accessible from the front panel. (See “Front Panel LCD Menu Descrip-

tions” on Page 32.)

• NMS (Network Management System)—The NMS is used via a terminal

connected to the front panel CONSOLE Port. It may be used to configure
and query every manageable radio parameter on a given network using the
out-of-band Service Channel. The Element Management System (EMS) may
be used on the local radio (login command) or through any remote radio in
the network using the rlogin command.

• Telnet—A standard network application protocol which provides a

NMS-type interface to configure and query most radio parameters.

• SNMP Network Management System—The SNMP agent interface is opti-

mized to fulfill the fault configuration, performance and user access require­ments of the LEDR radio system. A separate manual, MDS P/N 05-3532A01
explains SNMP in more detail.

4.4 STEP 3—Make Initial Login to Radio

Navigation Key
Method

When the radio is first powered up, it defaults to a read-only condition.
That is, the radio parameters may be viewed, but cannot be changed. To
enable changes to radio settings, a valid user name and password must
be entered.

When the radio is shipped from the factory, it is pre-programmed with
the following temporary login credentials:

Username:

SUPER

Password:SUPER

NOTE: User names and passwords are case sensitive. Do not use punc-

tuation mark characters. A maximum of eight characters are
allowed.

To log in from the front panel using the temporary credentials, follow
these steps:

1. Go to the Login screen and press the front panel key. The

Username screen appears with

2. Press the

ENTER

key again to access the Password screen. Use the

SUPER displayed.

ENTER

arrow keys to scroll through the list of characters and individually
select the letters spelling out the word

SUPER. Press after each

ENTER

character selection. (For more information on character selection
using the navigation keys, see “INITIAL STARTUP AND CON-

FIGURATION” on Page 25.)

26 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

3. When all of the characters ha ve been entered, press again. The

screen briefly displays

Login Success and returns to the Login entry

ENTER

screen.

You may now access any of the screens shown in Figure 15 with
Administrator level privileges (the highest allowable user level).

CONSOLE Method To login using a terminal connected to the front panel CONSOLE Port,

follow the steps below. The default connection parameters are 9600 bps,
8 bits, no parity, 1 stop bit (96008N1).

1. Connect a terminal data port or a PC’s serial port to the radio’s front

panel

CONSOLE Port .

2. Open an ANSI terminal program, such as HyperTerminal™ in the

Windows O/S. Press . The

ENTER

LEDR> prompt should appear on

the terminal’s display.

3. Enter

login SUPER. The Password > prompt will appear.

4. Enter the password SUPER. The following response appears: login:

SUPER logged in.

You may now access any of the NMS commands listed in Table 15 on

Page 45 with Administrator level privileges (the highest allowable user

level).

4.5 STEP 4—Change the SUPER Password

The factory-programmed username and password (SUPER) is provided
to enable a System Administrator to operate a newly installed radio. It
is highly recommended that the password for
as possible to maintain system security.

Follow these steps to change the factory-programmed password.

1. Login as

SUPER using the NMS method described above.

2. Enter the command passwd. At the next prompt, enter a new pass-

word with a maximum of eight characters. (See passwd on Page 72.)

SUPER be changed as soon

NOTE: Passwords cannot be changed using the front panel naviga­tion buttons. A console terminal must be used.

3. Re-enter your new password (for verification purposes). If the entry

is correct, the radio responds with

user: Command Complete.

4. Set up user accounts as required beyond the factory default of

SUPER.

Create accounts, set permission levels, or delete accounts as desired

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 27

using the user command. See Page 86 for complete description of

user command.

NOTE: It is recommended that users log out when finished using the

front panel navigation keys or console terminal. This can be
done using the Logout screen on the radio, or the logout
command from a console terminal as appropriate. If there is no

key or terminal activity for 10 minutes, the radio automatically
logs out and reverts to read-only status.

4.6 STEP 5—Review Essential Operating

Parameters

Review and set the following parameters to allow data throughput and
interconnection with the network. These are radio operating frequen­cies, data interface clocking, and data framing. Table 12 outlines these
based on each model group and configuration.

Table 12. Essential Parameters for Standalone & Protected

Model
Group

Subrate EIA-530 RF TX/RX

Fullrate E1 RF TX/RX

Data
Interface

FT1/FE1 RF TX/RX

Parameter Setting

Frequency
Clocking

Framing Does not apply.

Frequency
Clocking Automatically set to match

Framing Set as appropriate using fstruct

Time Slot Set as appropriate using timeslot

Line Code Set as appropriate using linecode

Frequency
Clocking No settings are necessary. Radio

Framing • Radio set to unframed (default).

Line Code Set as appropriate using linecode

Factory configured for customer
frequencies.

Use clkmode command (
to match interface equipment.

Factory configured for customer
frequencies.

connected equipment.

command (

command (

command (
Factory configured for customer

frequencies.

automatically detects clock and sets
mode.

• Make changes as appropriate
using fstruct command

Page 59) to match interface

(
equipment.

command (

Page 59).

Page 84).

Page 66).

Page 66).

Page 55)

28 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

4.7 STEP 6—Set TCP/IP Settings to Enable SNMP and/or Telnet Management (if required)

• The unit IP address is factory configured with a unique address
based on the last three digits of the radio’s serial number.

• Use

ip command (Page 63) to change the IP address, set net-

mask, gateway and IP Port as necessary.

Change only
if required.

• In a protected radio, change the

rdnt settings (Page 74) to match

the user-assigned IP addresses.

4.8 STEP 7—Set User Configurable Fields

Many items are user-configurable. These include, but are not lim­ited to the following. See the NMS command description in the
manual for more detail:

• Set user information fields using

• Set alarms and alarm mappings using the

info command (Page 62)

alarm command

(Page 50)

• Set event mappings using the

• Set alarm thresholds using the

• Set the SNMP community using the

evmap command (Page 58)

threshold command (Page 83)

snmpcomm command

(Page 81)

4.9 STEP 8—Verify Radio Performance

The data performance and NMS should be verified. Use the loop-

back

command (Page 69) to verify data throughput.

4.10 STEP 9—Install the Link

Peak the antennas for maximum RSSI using the continuously
updated
using the

rssi command (Page 79), either the front panel screen or

trend command (Page 85) via the NMS.

4.11 STEP 10—Verify the Link Performance

Connect and verify the proper operation of external equipment con­nected to the LEDR radio link.

5.0 CONFIGURATION AND CONTROL VIA THE FRONT PANEL

Figure 15 shown on the following pages is a pictorial view of the front

panel menu tree. Detailed explanations of the screens are follow in

Section 5.1, Front Panel LCD Menu Descriptions.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 29

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeenn

nn

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
LLLLooooggggoooouuuutt

tt

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
NNNNeeeettttwwwwoooorrrrkk

kk

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
GGGGeeeennnneeeerrrraaaall

ll

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
RRRRFFFF CCCCoooonnnnffffiiiigg

gg

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
IIIIOOOO CCCCoooonnnnffffiiiigggg

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
LLLLiiiinnnneeee CCCCoooonnnnffffiiiigggg

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
PPPPeeeerrrrffffoooorrrrmmmmaaaannnnccccee

ee

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk

GGGG....8888222211

11

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
MMMMooooddddeeeemm

mm

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
CCCCoooonnnnssssoooollllee

ee

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
DDDDiiiiaaaaggggnnnnoooossssttttiiiiccccss

ss

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
OOOOrrrrddddeeeerrrrwwwwiiiirrrree

ee

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
FFFFrrrroooonnnntttt PPPPaaaannnneeeell

ll

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
RRRReeeedddduuuunnnnddddaaaannnntt

tt

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
RRRReeeemmmmooootttteeee SSSSttttaaaattttuuuuss

ss

Step 1

EEEENNNNTTTTEEEERR

RR

Step 2

UUUUsssseeeerrrrnnnnaaaammmmeeee
AAAAddddmmmmiiiinn

Menu Selection

nn

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
LLLLooooggggggggeeeedddd oooouuuutt

Display Only

tt

IIIIPPPP AAAAddddddddrrrreeeessssssss

000000000000....000000000000....000000000000....0000000000

Number Enter

UUUUnnnniiiitttt IIIIDDDD
0000000000

00

Number Enter

TTTTxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy

xxxxxxxxxxxxxxxx....xxxxxxxxxxxxxxxx MMMMHHHHzz

Number Enter

CCCClllloooocccckkkk MMMMooooddddeeee
IIIINNNNTTTTEEEERRRRNNNNAAAALL

Menu Selection

LL

CCCChhhhoooooooosssseeee LLLLiiiinnnneeee 11
LLLLIIIINNNNEEEE11

RRRRSSSSSSSSII

----66660000 ddddBBBBmm

11

Menu Selection

II

mm

Display Only

GGGG....888822221111 SSSSttttaaaattttuuuussss

EEEERRRRRRRROOOORRRR FFFFRRRREEEEEE

Display Only

EE

RRRRxxxx LLLLoooocccckkkk
LLLLOOOOCCCCKKKKEEEEDD

DD

Display Only

BBBBaaaauuuudddd RRRRaaaatttteeee
99996666000000

LLLLooooooooppppbbbbaaaacccckkkk

00

Menu Selection

NNNNOOOORRRRMMMMAAAALLLL ((((NNNNOOOONNNNEEEE))

Menu Selection

SSSSeeeennnndddd OOOODDDDWWWW AAAAlllleeeerrrrtttt

00

4444000000

Menu Selection

BBBBaaaacccckkkklllliiiigggghhhhtttt
EEEENNNNAAAABBBBLLLLEEEEDD

Menu Selections

DD

SSSSiiiibbbblllliiiinnnngggg IIIIPPPP

000000000000....000000000000....000000000000....0000000000

Number Enter

RRRReeeemmmmooootttteeee UUUUnnnniiiittttIIIIDDDD

Number Enter

<<<<nnnnoooonnnneeee>>

Number Enter

>>

Step 3

PPPPaaaasssssssswwwwoooorrrrdddd
**********************

Text Enter

(Note: Logout screens available only when logged in.)

NNNNeeeettttmmmmaaaasssskkkk

00

000000000000....000000000000....000000000000....0000000000

Number Enter

MMMMooooddddeeeellll NNNNuuuummmmbbbbeeeerrrr
LLLLEEEEDDDDRRRR 444400000000FF

Display Only Display Only

RRRRxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy

zz

xxxxxxxxxxxxxxxx....xxxxxxxxxxxxxxxx MMMMHHHHzz

IIIInnnntttteeeerrrrffffaaaacccceeee

Number Enter

EEEE11

Menu Selection

11

FFFFrrrraaaammmmeeee SSSSttttrrrruuuucccctttt 11
FFFFAAAASSSS OOOONNNNLLLLYY

Menu Selection

SSSSNNNNRRRR
++++22227777 ddddBB

Display Only

AAAAvvvvaaaaiiiillllaaaabbbblllleeee
00

FFFFrrrreeeeqqqq.... OOOOffffffffsssseeeett

00

Display Only

----111177770000 HHHHzz

Display Only Display Only

PPPPaaaarrrriiiittttyyyy
NNNNoooonnnnee

Menu Selection

BBBBuuuuiiiilllltttt iiiinnnn TTTTeeeesssstt

))

SSSSttttaaaarrrrtttt??

Menu Selection

VVVVoooolllluuuummmmeeee

~~

~~~~~~~~~~~~~~~~~~~~~~

Level Setting Level Setting

VVVViiiieeeewwwwiiiinnnngggg AAAAnnnngggglllleeee

~~

~~~~~~~~~~~~~~

Angle Setting

PPPPrrrrooootttteeeecccctttteeeedddd MMMMooooddddeeee
RRRReeeedddduuuunnnnddddaaaannnntt

00

Display Only

NOTES:

• Redundant screens visible only on protected/redundant stations.

• See Redundant screen description for additional displays (Page 41).

**

FF

zz

11

YY

BB

GGGGaaaatttteeeewwwwaaaayyyy

00

000000000000....000000000000....000000000000....0000000000

SSSSeeeerrrriiiiaaaallll NNNNuuuummmmbbbbeeeerr
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

TTTTxxxxKKKKeeeeyyyy EEEEnnnnaaaabbbblllleeee
UUUUNNNN----KKKKEEEEYYYYEEEEDD

CCCCAAAASSSS EEEEnnnnaaaabbbbllllee
DDDDIIIISSSSAAAABBBBLLLLEEEEDD

11

AAAAIIIISSSS GGGGeeeennnneeeerrrraaaatttteeee 11
OOOOFFFFFF

PPPPoooowwwweeeerrrr OOOOuuuutttt
++++33330000 ddddBBBBmm

UUUUnnnnaaaavvvvaaaaiiiillllaaaabbbbllllee
0000 sssseeeecccc

tt

zz

CCCCoooorrrrrrrreeeecccctttteeeedddd
0000 bbbbyyyytttteeeess

ee

tt

??

VVVVooooxxxx TTTThhhhrrrreeeesssshhhhoooolllldd
~~~~~~~~~~~~~~~~~~~~~~

KKKKeeeeyyyyppppaaaadddd BBBBeeeeeeeepppp
EEEENNNNAAAABBBBLLLLEEEEDD

AAAAccccttttiiiivvvveeee

tt

RRRReeeedddduuuunnnnddddaaaannnntt

Number Enter

Display Only

DD

Menu Selection

ee

DD

Menu Selection

FF

mm

Display Only

ss

~~

DD

Menu Selections

tt

Display Only

rr

xx

DDDDeeeeffffaaaauuuulllltttt IIIIPPPP PPPPoooorrrrtt

00

000000000000....000000000000....000000000000....0000000000

FFFFiiiirrrrmmmmwwwwaaaarrrreeee RRRReeeevvvv....

xxxx....xxxx....xx

BBBBaaaannnnddddwwwwiiiiddddtttthhhh

Number Enter

222200000000 kkkkHHHHzz

Menu Selection

LLLLiiiinnnneeee mmmmaaaapp
1111aaaa 2222bbbb 3333cccc 4444dd

Menu Selection

11

AAAAIIIISSSS FFFFoooorrrrwwwwaaaarrrrddddiiiinnnngggg 11
OOOOFFFFFF

PPPPAAAA TTTTeeeemmmmppppeeeerrrraaaattttuuuurrrree

FF

Menu SelectionMenu Selection

++++33337777 °°°°CC

Display OnlySet/Display

ee

EEEErrrrrrrroooorrrreeeedddd
0000 sssseeeecc

Display Only

UUUUnnnnccccoooorrrrrrrreeeeccccttttaaaabbbbllllee
0000 bbbblllloooocccckkkkss

Display Only

tt
00

xx

zz

pp

dd

11

ee

CC

cc

ee

ss

dd

KKKKeeeeyyyy RRRReeeeppppeeeeaaaatttt RRRRaaaattttee
111155550000 mmmmss

Menu Selections

ee

ss

30 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

HHHHaaaarrrrddddwwwwaaaarrrreeee RRRReeeevvvv....

ENTER

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Display Only

xx

MMMMoooodddd////DDDDaaaattttaaaa rrrraaaatttteeee
33332222----QQQQAAAAMMMM 777766668888 kkkkbbbbppppss

Menu Selection

ss

LLLLiiiinnnneeee CCCCooooddddeeee 11
AAAAMMMMII

SSSSeeeevvvveeeerrrreeeellllyyyy EEEErrrrrrrreeeedd
0000 sssseeeecc

II

Menu Selection

dd

cc

Display Only

BBBBiiiitttt EEEErrrrrrrroooorrrr RRRRaaaattttee
<<<< 1111 xxxx 11110000----66

Display Only

66

DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeenn
RRRRSSSSSSSSII

II

11

RRRReeeeffffrrrraaaammmmeeee 11

3333 ccccoooonnnnssss.... FFFFAAAASS

RRRREEEESSSSEEEETTTT GGGG....888822221111??

NNNNOOOO

SS

Menu Selection

??

Menu Selection

11

PPPPuuuullllsssseeee SSSShhhhaaaappppeeee 11

gggg....7777777755

Menu Selection

11

CCCCaaaabbbblllleeee LLLLeeeennnnggggtttthhhh 11

55

1111----111133333333 fffftt

Menu Selection

11

tt

ee

Display Only—This description indicates the LCD menu
item is for informational purposes only.

Menu Selection—This description indicates there are selec­tions available and the choices may be scrolled through using

the keys. Press the key again to save menu selec-

ENTER

tion choice.
Text or Number Enter— This description indicates the

nn

entry is alphanumeric. The keys are first used to posi­tion the cursor over the text to be changed. Then, the key

ENTER

is pressed to enter the edit mode. Use the keys to scroll
through all available characters. Press the key again to

save the displayed character in displayed location.

Figure 15. Front Panel LCD Menu Navigation

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 31

BBBBaaaauuuudddd RRRRaaaatttteeee
99996666000000

PPPPaaaarrrriiiittttyyyy
NNNNoooonnnnee

00

ee

5.1 Front Panel LCD Menu Descriptions

NOTE: These menu selections are listed in alphabetical order.

CONSOLE

This menu allows you to set or view the current data rate setting for the

CONSOLE Port serial interface. Refer to Figure 33 on Page 127 for

pinout information of this Port. See “OPTION 1: Uploading Firmware

via the CONSOLE Port” on Page 94 for more information.

For the NMS command-line
equivalent,

Page 56

This menu allows you to set or view the current parity setting for the

CONSOLE Port serial interface. Refer to Figure 33 on Page 127 for

pinout information for this Port. Typically, this will be set to

For the NMS command-line
equivalent,

Page 56

Default Screen

see “con” on

.

NONE.

see “con” on

.

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeenn

LLLLooooooooppppbbbbaaaacccckk
NNNNOOOORRRRMMMMAAAALLLL ((((NNNNOOOONNNNEEEE))

BBBBuuuuiiiilllltttt iiiinnnn TTTTeeeesssstt
SSSSttttaaaarrrrtttt??

nn

kk

tt

??

This menu allows you to view the default screen that appears on the
LCD display. If desired, the default screen may be changed (See

“ Default Screen” on Page 33).

Diagnostics

This menu is used to start the loopback mode for testing purposes.
Remote loopback port selection is relative to the local port. The radio
link will translate any line mapping to select the correct physical remote

))

port to loop back, based on the selected local port.
When conducting RF loopback testing, see Page 69 (

loopback NMS

command) for additional information.

For the NMS command-line
equivalent,

on Page 69

see “loopback”

.

This menu is used to start the loopback mode to check radio functions.
When conducting RF loopback testing, see Page 69 (

loopback) for

important information.

For the NMS command-line
equivalent,

Page 82

see “test” on

.

32 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

BBBBaaaacccckkkklllliiiigggghhhhtttt

ENTER

EEEENNNNAAAABBBBLLLLEEEEDD

VVVViiiieeeewwwwiiiinnnngggg AAAAnnnnggggllllee

~~

~~~~~~

KKKKeeeeyyyyppppaaaadddd BBBBeeeeeeeepppp
EEEENNNNAAAABBBBLLLLEEEEDD

KKKKeeeeyyyy RRRReeeeppppeeeeaaaatttt WWWWaaaaiiiitt
111155550000 mmmmss

DDDDeeeeffffaaaauuuulllltttt SSSSccccrrrreeeeeeeenn
RRRRSSSSSSSSII

DD

ee

DD

ss

nn

II

Front Panel

This screen provides control of the front panel LCD illumination. The
LCD illumination may need to be enabled to view the LCD depending
on ambient lighting conditions.

This screen allows you to adjust the viewing angle (top to bottom) of the
LCD screen. The angle may need to be adjusted to compensate for the
radio mounting position and ambient lighting conditions. Use the

keys to adjust the screen. Pressing

saves the adjusted value as the

default setting.
This screen allows the radio beeper to be disabled or enabled. The

beeper provides a short “chirp” whenever a front panel key is pressed.

This screen allows you to set the time delay that occurs before a key will

tt

start repeating its function when held down.

This screen allows you to set the default screen that appears when the
radio is first turned on, or is left idle for more than 10 minutes. The RSSI
screen is commonly chosen, but any screen may be selected as a default.

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk

GGGG....8888222211

GGGG....888822221111 SSSSttttaaaattttuuuuss

EEEErrrrrrrroooorrrr FFFFrrrreeeeee

AAAAvvvvaaaaiiiillllaaaabbbblllleeee
0000 sssseeeecc

UUUUnnnnaaaavvvvaaaaiiiillllaaaabbbblllleeee
0000 sssseeeecc

EEEErrrrrrrroooorrrreeeedddd
00

11

ss
ee

cc

cc

00

G.821

This menu contains radio link performance information. The G.821
standard defines descriptive words associated with bit-error rate perfor­mance. Refer to the ITU-T G.821 recommendations for definitions and
standards.

This display shows summary information regarding the bit-error-rate
(BER) status of the radio.

This screen shows the available seconds of the radio link. The G.821
standard defines Available Seconds as the period of time following a
period of 10 consecutive seconds, each of which has a BER of less than

-3

1x10
This screen shows the unavailable seconds of the radio link. The G.821

.

standard defines Unavailable Seconds as the period of time following a
period of 10 consecutive seconds, each of which has a BER of higher

than 1x10

-3

.

This screen shows the errored seconds of the radio link. The G.821 stan­dard defines Errored Seconds as a one second period in which one or
more bits are in error.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 33

SSSSeeeevvvveeeerrrreeeellllyyyy EEEErrrrrrrreeeedd
00

RRRReeeesssseeeetttt GGGG....888822221111????

NNNNOO

dd

00

OO

This screen shows the severely errored seconds of the radio link. The
G.821 standard defines Severely Errored Seconds as a one second

period that has a BER higher than 1x10
This screen allows the user to reset the G.821 performance monitoring

-3

.

screens.

General

DD

UUUUnnnniiiitttt IIIIDD
0000000000

MMMMooooddddeeeellll NNNNuuuummmmbbbbeeeerrrr
LLLLEEEEDDDDRRRR 1111444400000000SS

SSSSeeeerrrriiiiaaaallll NNNNuuuummmmbbbbeeeerr
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

FFFFiiiirrrrmmmmwwwwaaaarrrreeee RRRReeeevvvv..
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

00

SS

xx

This menu allows the Unit ID of the radio to be displayed or changed.
The Unit ID allows an individual radio to be signaled for Orderwire use.

For the NMS command-line
equivalent,

Page 86

This menu displays the radio model number. The user cannot change the

see “unitid” on

.

radio type.

For the NMS command-line
equivalent,

Page 71

This menu displays the radio serial number and matches the serial

rr

xx

number on the chassis sticker. The user cannot change the radio’s serial

see “model” on

.

number.

For the NMS command-line
equivalent,

on Page 81

This menu displays the firmware revision level of the internal radio soft-

..

see “sernum”

.

ware.

For the NMS command-line
equivalent,

Page 87

see “ver” on

.

This menu displays the hardware revision level of the main PC board in

HHHHaaaarrrrddddwwwwaaaarrrreeee RRRReeeevvvv....

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

34 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

xx

the radio.

For the NMS command-line
equivalent,

Page 87

see “ver” on

.

CCCClllloooocccckkkk MMMMooooddddee
IIIINNNNTTTTEEEERRRRNNNNAAAALL

LL

IO Configuration

This screen is used to set or display the data clocking method. For syn-

ee

chronization purposes, several different clocking schemes can be used.
See Table 10 on Page 23 for the combinations of radio bandwidth, data
rates and modulation types available for subrate radios. Table 11 on

Page 24 contains the same information for fullrate radios.

For the NMS command-line
equivalent,

Page 57

see “date” on

.

NOTE: For subrate models: LEDR 400S/900S/1400S

Earlier versions of the software may display the Clock Mode
as NORMAL instead of INTERNAL.

IIIInnnntttteeeerrrrffffaaaaccccee
EEEE11

CCCCAAAASSSS EEEEnnnnaaaabbbbllllee
DDDDIIIISSSSAAAABBBBLLLLEEEEDD

LLLLiiiinnnneeee mmmmaaaapp
1111aaaa 2222bbbb 3333cccc 4444dd

ee

11

DD

pp

This screen is used to set or display the payload data interface. The
available selections are E1, T1 and EIA530, depending on hardware
configuration of the LEDR radio.

For the NMS command-line
equivalent,

on Page 62

This screen is used to set or display the Channel Associated Signaling

ee

see “interface”

.

(CAS) status. The available selections are Enabled and Disabled.
This screen will only be functional in radios factory-equipped to support

CAS. Consult the factory if you require this service.

For the NMS command-line
equivalent,

on Page 71

see “modem”

.

This screen is used to set or display the current span mapping configu-

dd

ration. The entry consists of from 1 to 4 alpha-numeric characters spec­ifying line interface to span mapping. Valid numbers are 1–4. Valid span
characters are a–d.

Example: Entering 1a 2b 3c 4d asserts the following:
maps line 1 to span a

maps line 2 to span b
maps line 3 to span c
maps line 4 to span d

For the NMS command-line
equivalent,

on Page 66

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 35

see “linemap”

.

CCCChhhhoooooooosssseeee LLLLiiiinnnneeee 1111
LLLLIIIINNNNEEEE11

FFFFrrrraaaammmmeeee SSSSttttrrrruuuucccctttt 11
FFFFAAAASSSS OOOONNNNLLLLYY

11

YY

Line Configuration

This screen is used to choose or display the line (1-4) that is selected.
This selection will be active for all of the screens that follow in the Line
Configuration menu and will be displayed in the upper right hand corner
of each screen.

For the NMS command-line
equivalent,

on Page 67

11

see “linename”

.

This screen is used to set or display the span(s) frame structure. The
allowable selections are shown in Table 13.

Table 13. Frame Structure—Allowable Selections

T1 Operation E1 Operation

0–FT only (Default) 0–FAS Only (Default)
1–ESF 1–FAS + BSLIP
2–ESF + PRM 2–FAS + CRC
3–SF 3–FAS + CRC + BSLIP
4–SF + JYEL 4–FAS + CAS
5–ESF + CRC 5–FAS + CAS + BSLIP
6–ESF + CRC + PRM 6–FAS + CRC + CAS
7–Unframed (none) 7–FAS +CRC + CAS +BSLIP

8–Unframed (none)

AAAAIIIISSSS GGGGeeeennnneeeerrrraaaatttteeee 11
OOOOFFFFFF

AAAAIIIISSSS FFFFoooorrrrwwwwaaaarrrrddddiiiinnnngggg 11
OOOOFFFFFF

11

FF

FF

For the NMS command-line
equivalent,

Page 59

see “fstruct” on

.

This screen is used to set or display the Alarm Indication Signal (AIS)
status. It may be set to ON or OFF. When generation is enabled, fault
conditions within the link or at the line interface will cause the appro­priate AIS signaling to occur.

For the NMS command-line
equivalent,

Page 49

This screen is used to set or display the Alarm Indication Signal (AIS)

11

see “ais” on

.

forwarding status. It may be set to ON or OFF. When forwarding is
enabled, AIS/RAI signaling at the line interfaces will be detected and
passed to the other end of the radio link.

For the NMS command-line
equivalent,

Page 49

see “ais” on

.

36 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

LLLLiiiinnnneeee CCCCooooddddeeee 11
AAAAMMMMII

RRRReeeeffffrrrraaaammmmeeee 11

3333 ccccoooonnnnssss.... FFFFAAAASS

II

SS

This screen is used to set or display the linecode used by the radio. The

11

available selections are AMI or HDB3.

For the NMS command-line
equivalent,

on Page 66

This screen is used to set or display the reframe criteria of the LEDR

11

see “linecode”

.

radio. The setting is based on the number of errors encountered. The
available selections for T1 and E1 operation are listed in Table 14
below.

Table 14. Reframe Criteria Selections

T1 Operation E1 Operation

2 out of 4 Fbit errors (Default) 3 consecutive FAS errors (Default)
2 out of 5 Fbit errors 915 CRC errors
2 out of 6 Fbit errors

For the NMS command-line
equivalent,

on Page 75

see “reframe”

.

PPPPuuuullllsssseeee SSSShhhhaaaappppeeee 11

gggg....7777777755

CCCCaaaabbbblllleeee LLLLeeeennnnggggtttthhhh 11
1111----111133333333 fffftt

55

tt

11

This command is used to select or display the pulse shape used with the
data interface cable. The chart below shows the available selections for
T1 and E1 operation.

Specification

g.775 (Default)
i.431

For the NMS command-line
equivalent,

Page 65

This command is used to set or display the cable length being used for

11

see “line” on

.

the data interface. The available selections are:

1 to 133 feet (Default)
133 to 266 feet
266 to 399 feet
399 to 533 feet
533 to 655 feet

For the NMS command-line
equivalent,

Page 65

see “line” on

.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 37

Login

LLLLEEEEDDDDRRRR LLLLIIIINNNNKK
LLLLooooggggiiiinn

UUUUsssseeeerrrrnnnnaaaammmmeeee
AAAAddddmmmmiiiinn

PPPPaaaasssssssswwwwoooorrrrdddd
**********************

LLLLEEEEDDDDRRRR LLLLiiiinnnnkkkk
LLLLooooggggoooouuuutt

KK

nn

nn

**

tt

The login menus allows you to log in to the radio’s operating system and
gain access to configuration and diagnostics functions permitted for
your assigned access level.

The username menu is where you specify the user name assigned by the
user access administrator.

For the NMS command-line
equivalent,

Page 68

see “login” on

.

The password screen is where you specify the password associated with
your user name to gain access to the login account. A maximum of eight
characters is allowed.

For the NMS command-line
equivalent,

on Page 72

see “passwd”

.

Logout

The logout menu allows you to terminate your session with the LEDR
radio. When this screen is displayed, press

ENTER

to finish your session.

RRRRxxxx LLLLoooocccckkkk
LLLLOOOOCCCCKKKKEEEEDD

FFFFrrrreeeeqqqq.... OOOOffffffffsssseeeetttt

----111177770000 HHHHzz

CCCCoooorrrrrrrreeeecccctttteeeedddd
0000 bbbbyyyytttteeeess

UUUUnnnnccccoooorrrrrrrreeeeccccttttaaaabbbbllllee
0000 bbbblllloooocccckkkkss

BBBBiiiitttt EEEErrrrrrrroooorrrr RRRRaaaattttee
<<<< 1111 xxxx 11110000----66

DD

zz

ss

ee

ss

66

Modem

This menu indicates whether the receiver demodulator has detected a
signal, acquired the carrier, and data rate, as well as achieved a Forward
Error Correction (FEC) lock.

This screen shows the frequency offset of the LEDR radio as measured
in Hertz.

This menu shows how many bytes have been corrected by the radio’s
FEC capability.

This menu shows how many frames (blocks) could not be corrected by
the radio’s FEC capability.

This menu shows the current bit error rate (BER) of the LEDR radio.

ee

38 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

IIIIPPPP AAAAddddddddrrrreeeessssssss

000000000000....000000000000....000000000000....0000000000

NNNNeeeettttmmmmaaaasssskkkk

000000000000....000000000000....000000000000....0000000000

Network

This menu allows changes to the radio’s IP address. The IP address is

00

used for network connectivity. The IP address also allows new radio
software to be downloaded over-the-air.

For the NMS command-line
equivalent,

Page 63

This menu allows the subnet mask to be viewed and changed. The

00

subnet mask specifies which bits of the host IP address can be re-used

see “ip” on

.

for increased network addressing efficiency.

Example: Consider an IP address in a Class C network, such as

150.215.017.009. The Class C network means that the right-most group

of numbers (009) identifies a particular host on this network. The other
three groups of numbers (150.215.017) represent the network address.

Subnetting allows the further division of the host part of the address
(right-most group of numbers) into two or more subnets. A subnet mask
of 255.255.255.127 allows half of the host portion of the IP address to
be reused to define sub-networks.

For the NMS command-line
equivalent,

Page 63

see “ip” on

.

GGGGaaaatttteeeewwwwaaaayyyy

000000000000....000000000000....000000000000....0000000000

DDDDeeeeffffaaaauuuulllltttt IIIIPPPP PPPPoooorrrrtt
EEEEtttthhhheeeerrrrnnnneeeett

tt

This menu allows the Gateway IP address to be viewed or set. The

00

Gateway IP address is the address of the radio that connects the radio
network to an IP network.

For the NMS command-line
equivalent,

Page 63

This menu allows selection of the Default IP port for networking con-

tt

nections to the LEDR radio. The

Ethernet selection is used for cable con-

see “ip” on

.

nection to a Local Area Network (LAN) or repeater via the radio’s rear
panel ETHERNET connector.

The

AIR selection is commonly used for over-the air (RF) networking

between radios, but may also be used with a back-to-back cable connec­tion between two radios via the radio’s rear panel ETHERNET NMS con­nector. This type of communication uses the SNAP protocol and
requires the use of an ethernet crossover cable.

For the NMS command-line
equivalent,

Page 63

see “ip” on

.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 39

SSSSeeeennnndddd OOOODDDDWWWW AAAAlllleeeerrrrtt

Orderwire

This menu allows you to “ring” the Orderwire at a specified radio site.

tt

Refer to USING ORDERWIRE on Page 99 for instructions on using the
Orderwire.

For the NMS command-line
equivalent,

Page 51

see “alert” on

.

VVVVoooolllluuuummmmee

~~

~~~~~~~~~~

VVVVooooxxxx TTTThhhhrrrreeeesssshhhhoooolllldd

~~

~~~~~~

ee

This screen is used to set or display the Orderwire volume. Use the

keys to adjust the volume level. Pressing

ENTER

saves the adjusted

value as the default setting.

For the NMS command-line
equivalent,

on Page 88

This screen is used to set or display the Orderwire vox threshold (acti-

dd

see “volume”

.

vation level). Use the keys to adjust the vox threshold. Pressing

ENTER

saves the adjusted value as the default setting.

For the NMS command-line
equivalent,

Page 88

see “vox” on

.

Performance

The Performance menu items provide diagnostics information regarding
the radio. The following diagnostic parameters are available on a con­tinuous, updating basis:

• RSSI—Received Signal Strength Indicator

• SNR—Signal/Noise Ratio (not valid if there is an RX Alarm)

• POUT—Power Output

• PA Temperature—Power amplifier temperature

RRRRSSSSSSSSII

----66660000 ddddBBBBmm

II

mm

The RSSI display indicates the strength of the radio signal being
received by the radio. The measurement is in dBm. Therefore, an RSSI
of –80 dBm is stronger than a –100 dBm signal.

For the NMS command-line

SSSSNNNNRRRR
++++22227777 ddddBB

BB

equivalent,

Page 79

The SNR display indicates the relationship of the amount of intelligence
versus noise on the radio signal. The higher the SNR, the better the

see “rssi” on

.

quality of the radio signal.

For the NMS command-line
equivalent,

Page 81

40 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

see “snr” on

.

PPPPoooowwwweeeerrrr OOOOuuuutttt
++++33330000 ddddBBBBmm

mm

The Power Output display indicates the transmitter power output in
dBm. (+30 dBm is equal to 1.0 watt; +20 dBm is 100 mW.)

PPPPAAAA TTTTeeeemmmmppppeeeerrrraaaattttuuuurrrree
++++33337777 °°°°CC

CC

The power output level can be set from this display by pressing the
key, and through use of the arrow keys, increase or decrease the power

level. When the desired value is displayed, press the key to save

ENTER

the setting.

For the NMS command-line
equivalent,

Page 77

The PA Temperature display indicates the internal temperature

ee

see “rfout” on

.

(degrees Celsius) at the warmest point on the radio’s printed circuit
board (near the power amplifier section).

For the NMS command-line
equivalent,

Page 82

see “temp” on

.

NOTE: It is normal for the PA temperature to be 30 to 40° C above the

ambient room temperature.

Redundant

ENTER

MMMMyyyy SSSSttttaaaattttuuuussss
OOOOKK

SSSSiiiibbbblllliiiinnnngggg SSSSttttaaaattttuuuussss
OOOOKK

AAAAccccttttiiiivvvveeee
NNNNOO

MMMMooooddddeeee
1111 ++++ 1111 HHHHOOOOTT

SSSSiiiibbbblllliiiinnnngggg IIIIPPPP

000000000000....000000000000....000000000000....0000000000

KK

KK

OO

TT

00

This screen is used to display the status of the radio currently being used.
“OK” is displayed when no problems are detected.

This screen is used to display the status of the “other” radio in a pro­tected configuration (the one not currently being used). “OK” is dis­played when no problems are detected.

This screen is used to set or display whether the currently selected radio
is the active unit.

This screen is used to set or display the radio’s redundancy mode. The
available selections are:
(redundant warm standby) or

1+1 HOT (redundant hot standby), 1+1 W ARM

STANDALONE (non-redundant) configura-

tion.

This screen is used to set or display the sibling radio’s Internet Protocol
(IP) address. (See note below.)

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 41

HHHHiiiittttlllleeeessssssss
OOOONN

DDDDeeeeffffaaaauuuulllltttt RRRRaaaaddddiiiioo
YYYYeeeess

SSSSwwwwiiiittttcccchhhh XXXXccccvvvvrrrr
SSSSwwwwiiiittttcccchhhh??

NN

ss

??

NOTE: The associated radio IP address should be programmed to the

IP address of the other radio connected to the protected
switching chassis. The associated radio IP address is used by
the redundant radio to share information between the units.
This address is necessary for proper operation. The associated
radio IP address does not affect IP routing and forwarding,
SNMP, or Telnet.

This screen sets or displays whether the radio is set to perform “hitless”
(error-free) switchover in the event of an alarm condition.

This screen displays whether or not the radio is the default radio in a pro-

oo

tected configuration. The default radio is determined by which one is
connected to the top connector of the Protected Switch Chassis rear
panel. (See Figure 12 on Page 18.)

This screen is used to force a switchover to the non-active radio trans­ceiver. (The newly selected unit becomes the active transceiver).

RRRReeeemmmmooootttteeee UUUUnnnniiiittttIIIIDDDD
<<<<nnnnoooonnnneeee>>

TTTTxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy

RRRRxxxx FFFFrrrreeeeqqqquuuueeeennnnccccyyyy

>>

Remote Status

This screen is used to set or display the unit identification for the remote
radio.

RF Configuration

This menu is used to set or view the transmit (TX) frequency of the
radio.

For the NMS command-line
equivalent,

Page 59

see “freq” on

.

This menu is used to set or view the receive (RX) frequency of the radio.

For the NMS command-line
equivalent,

Page 59

see “freq” on

.

42 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

TTTTxxxx KKKKeeeeyyyy EEEEnnnnaaaabbbblllleeee

BBBBaaaannnnddddwwwwiiiiddddtttthhhh

MMMMoooodddd////DDDDaaaattttaaaa rrrraaaatttteeee
33332222----QQQQAAAAMMMM 777766668888 kkkkbbbbppppss

This menu is used to enable (key) or disable (dekey) the transmitter or
to verify that the radio is keyed and the transmitter is active. The radio
is normally keyed and transmitting whenever power is applied.

For the NMS command-line
equivalent,

Page 86

This menu displays the bandwidth setting of the radio. The bandwidth is

see “txkey” on

.

set at the factory and cannot be changed by the user. Refer to Table 10

on Page 23 for allowable combinations of bandwidth, data rates, and

modulation types.
This menu displays the modulation type and the aggregate link data rate.

ss

The available modulation types are QPSK, 16 QAM, and 32 QAM. The
data rate can be changed, but is dependent on the modulation type. See

“Bandwidths, Data Rates and Modulation Types” on Page 23.

For the NMS command-line
equivalent,

on Page 71

see “modem”

.

6.0 CONFIGURATION AND CONTROL
VIA THE CONSOLE PORT

6.1 Introduction

The CONSOLE Port on the front panel provides full access to configura­tion and diagnostics information. It is the most common way to access
the LEDR radio for its initial configuration. The
EIA-232 connection that provides ASCII text communications to a con­nected terminal.

Most of the commands listed on the following pages are available
through other communication channels as well. These include Ethernet,
IP, Telnet and the rear panel Service Channel.

Refer to I/O Connector Pinout Information on Page 127 for connector
wiring details.

NOTE: It is important to use a terminal or terminal-emulator that

supports 80 characters-per-line and 25 lines-per-screen. The
display will be distorted if terminals with different line charac­teristics are used.

CONSOLE Port is an

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 43

6.2 Initial Connection to the CONSOLE Port

NOTE: The default connection parameters for console operation are

9600 bps, 8 bits, no parity, 1 stop bit (96008N1). The console
port is configured as DCE.

1. Connect a terminal to the front panel DB-9 connector labeled .

2. Open an ANSI terminal application on the terminal. (If using the

Windows operating system, a HyperTerminal session can be started
by selecting

Programs>>Accessories>>HyperTerminal.)

3. Press a few times. When communications are established

with the radio, a

4. Type

access) and press . At the password> prompt, type your pass-

ENTER

LEDR> text prompt appears on the terminal screen.

login <your username> (or rlogin <your username> for remote

ENTER

word (Eight characters maximum; case sensitive).

5. You now have access to the command line interface. It can be used

to configure and query the radio parameters and setup information.
The available commands can be listed on the display by typing

LEDR> prompt, then .

at the

ENTER

help

6.3 NMS Commands

Once you are successfully logged in, the Network Management System
(NMS) commands shown in Table 15 are available at the command line
prompt (
specific. See Table 16 on Page 48 for an explanation of feature-specific
icons.

Command Entry Hints—Recalling Commands

LEDR>). Note that some commands are model and/or feature

Recalling the most
recent command

To recall the most recent command issued from the terminal, enter two
exclamation points (
pear at the

LEDR> prompt. Press again to invok e the command,

!!) followed by . The command will reap-

ENTER

ENTER

or edit the string as necessary.

Recalling the most
recent command
beginning with xyz...

To recall the most recent command beginning with xyz (where xyz is a
string of up to 16 characters), enter an exclamation point (
a few characters of the command. For example, if the
mand was recently used, entering !thresh followed by would
make the

ENTER

threshold command reappear at the LEDR> prompt. Press

again to invoke the command, or edit the string as necessary.

!) followed by

threshold com-

ENTER

These “recall” techniques are especially useful for commands con­taining a long string of characters, such as IP addresses or other config­uration data.

44 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Table 15. NMS Commands

Command Description Summary Details
? or help Displays the available NMS commands. May also

be entered after any other command to obtain
context sensitive help.

ais Echoes/enables/disables Alarm Indication Signal

(AIS) generation and Remote Alarm Indication
(RAI) detection, AIS and RAI Signal (RAIS)
forwarding on given span(s).

alarm Provides control of alarm outputs and displays

state of alarm inputs.

alert Sends an alert sound to the specified radio
arp Set/display ARP Setting of Ethernet Port
ber Bit-Error Rate report for the RF link.
bert Bit-Error Rate test of data interface
boot Displays the active image (firmware) or reboots

the radio with a specified firmware image

buzzer Briefly sounds the radio’s piezo buzzer to test its

operation

clkmode Set/display data clocking mode
coffset Displays modem carrier frequency offset in Hz
con Set/display CONSOLE Port communications

parameters

config Used to get or send a radio configuration file
date Set/display current date
dtmf Turns dual tone, multi-function signaling feature

on or off

eia530 Set/display EIA-530 RTS or DTR control lines
ethernet Displays Ethernet address

Page 48

Page 49

Page 50
Page 51

Page 51
Page 52
Page 52
Page 54

Page 54
Page 55

Page 56
Page 56

Page 56
Page 57
Page 57

Page 57
Page 57

events Event log commands
evmap Set/display alarm port and alarm LED settings
fec Display corrected and Uncorrectable FEC errors
freq Set/display operating frequencies
fset Display absolute frequency limits
fstruct Set/display current span(s) frame structure
g821 Show/Reset G.821 information
group Set/display network group
help or ? Displays the available NMS commands. May also

be entered after any other command to obtain
context sensitive help.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 45

Page 57
Page 58
Page 58
Page 59
Page 59
Page 59
Page 60
Page 60
Page 48

Table 15. NMS Commands (Continued)

Command Description Summary Details
icopy Firmware image copy

idlepat Set/display timeslot idle pattern
info Set/display radio/owner information
interface Set/display the payload data interface
interleave Set/display interleave depth
ip Set/display the radio’s IP configuration
iverify Firmware image verify
lcd Tests radio’s front panel LCD display
led Tests radio’s front panel LEDs
line Set/display pulse shape settings
linecode Set/display the linecode used by span(s)
linerr Show/enable/clear line errors
linemap Set/display current linemapping configuration
linename Set/display names for line interfaces
log View, sort, clear, send event log information
login Console user level access
logout Console user exit
loopback Set/display loopback modes
model Display radio model number
modem Set/display radio modulation type and data rate
network Display radios in the network
passwd Sets new user password (8 characters max.)

Page 61
Page 61
Page 62
Page 62
Page 63
Page 63
Page 64
Page 64
Page 64
Page 65
Page 66
Page 67
Page 66
Page 67
Page 67
Page 68
Page 69
Page 69
Page 71
Page 71
Page 72
Page 72

ping Test link to IP address on network
pll Displays Phase Lock Loop status
pmmode Enables/disables modem modulator power

measurement mode (on/off)

rdnt Set/display redundant operating configuration
reframe Set/display the reframe criteria
reprogram Reprograms radio software
rfocal Set/display RF power output calibration sequence
rfout Displays transmit power
rlogin Log in to remote radio
route Add/delete/modify IP routing table entries

46 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Page 73
Page 73
Page 73

Page 74
Page 75
Page 76
Page 76
Page 77
Page 77
Page 77

Table 15. NMS Commands (Continued)

Command Description Summary Details
rssi Displays received signal strength

rssical Set/display RSSI calibration table
rxlock Displays current modem lock status
sabytes Echo/set sa bytes in E1 multi-frame
sernum Displays radio serial number
snmpcomm Set/display SNMP community names
snr Displays signal to noise ratio
spur Set/display spur frequencies for the radio network
status Displays performance and configuration data
svch Set/display Service Channel configuration
telnetd Displays or kills (terminates) Telnet session(s)
temp Displays PA temperature
test Runs self-test of LEDR hardware
threshold Set/display performance degradation threshold(s)
time Set/display system time
timeslot Selects which timeslots to transmit for a span(s).

Default action is to enable.

trapfilter Set/display which events cause SNMP traps
trapmgr Set/display the trap manager IP address
trend Displays continuously updated readings of: RSSI,

radio temperature, RF output, signal-to-noise
ratio, and FEC errors (corrected and
uncorrectable).

txkey Key or unkey radio
unitid Displays the three-digit unit identification

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uptime Displays how long the radio has been operating
user Administration tool for adding, modifying or

deleting user accounts

ver Displays software version
volume Set/display orderwire handset volume
vox Set/display orderwire VOX threshold
who Displays the currently logged in radio

users/accounts

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Page 87
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Page 88

NOTE: The NMS commands listed in this manual show the full set of

commands for all radio versions. Different hardware configu­rations may have fewer selections.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 47

6.4 Command Detailed Descriptions

Introduction

The following commands are available through the CONSOLE port.
These commands all require the Enter or Return key be pressed after the
command.

The following conventions are used to help describe the usage of the
commands.

Square brackets

[ ] contain subcommands that may or may not be

needed as part of the desired command. If there is more than one
possible subcommand a vertical line

| separates the commands

within the square brackets. A subcommand is an optional exten­sion of the command and changes the basic command.

Angle brackets

<> contain arguments. The arguments are values

needed to carry out the command such as a frequency value or
option.

Some commands are limited to use in certain radio models or configu­rations. These include subrate and fullrate. One or more of the symbols
as listed in Table 16 will identify these commands.

Table 16. Feature-Specific Icons

Symbol Interface/Group

530

FT1

FE1

EIA-530

Fractional-T1/G.703

Fractional-E1/G.703

E1/G.703

? or help User help

Usage:

? or help

E1

This command returns a list of currently available commands. In addi­tion, entering

? as a subcommand before or after a command returns

usage information regarding the command.
Command Example:

ENTER

?rssi

Returns:

Usage: command [subcommand] <argument>

48 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

ais Alarm Indication Signal

FT1

E1

FE1

Usage:

ais [linelist] [-g <on|off>] [-f <on|off>]

This command enables or disables alarm signal generation [-g] and for­warding [

-f] on specified E1/T1 interface lines. When generation is

enabled, fault conditions within the link or at the line interface will cause
the appropriate AIS/RAI signaling to occur. When forwarding is
enabled, AIS/RAI signaling at the line interfaces will be detected and
passed to the other end of the link.

Command Example:

ais -f on -g on

Returns:

AIS on RAI on

NOTE: For protected configurations and full-rate radios, disable the

alarm generation through the use of the ais -g off command.

Background on AIS command:
In fractional operation, the radio extracts the required timeslots and data
at the input to a link, and reconstructs the full frame at the output end.
The

AIS -g (generation)> command, when enabled, allows the radio to

override the frame reconstruction process in order to generate a proper
all-ones alarm signal. For example, modem loss of synchronization will
cause all-ones to be transmitted from the active G.703 ports. When

AIS -g

is disabled, the output will consist of a framed signal with all-ones in the
active timeslots. In Fractional operation, AIS generation also creates a
yellow alarm/RAI back to the defective source when a problem is found
at the input. In FE1 mode, when

AIS -g is enabled, loss of Multi-Framing

Alignment Sequence (MFAS) at the line receiver will generate a
Multi-frame Yellow Alarm (MYEL) or Multi-frame Remote Alarm
Indication (MRAI) at the line transmitter.

AIS <-f (forwarding)> is the act of detecting a condition at the input and

causing an appropriate response at the other end. For example, with for­warding enabled, an all-ones signal applied at one end causes all-ones to
be output at the other. A Remote Alarm Indication (RAI) applied will
likewise appear at the opposite end. Disabling the forwarding function
limits the presentation of alarm signaling to the active timeslots at the
remote end. It is recommended that the

ais -f on or ais --g on command be

used for Fractional operation, to enable alarm generation and for­warding.

In full-rate modes, the radio will always output AIS when the unit is
unlocked—received radio signal is lost. When the modem is locked, and
the input is removed from one end, you will get all-zeros at the other end
unless AIS generation is enabled. Yellow alarms/RAI are not generated

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 49

in the full-rate LEDR radio models; however AIS and RAI forwarding
are available. It may be desirable to have alarms generated (
full rate models, depending on the user's requirements as outlined in the
next paragraph.

Since the generation and forwarding operations require use of the Ser­vice Channel, the AIS/RAI response times are on the order of a few sec­onds. Generation and forwarding can be very helpful in correcting
problems with the network when they arise. However, in systems where
the response time is critical, these modes should be disabled: In frac­tional mode, enter

alarm Alarm I/O

ais -g on) in

ais -f off -g off. In full-rate mode, enter ais -g off.

Usage:

alarm [in|out] [1-4|all] [subcommand] [arguments]

This command is used to control the four (4) external alarm contacts and
display the state of the four (4) external alarm inputs.

Outputs (Relays)—Alarm outputs may be directly driven to a
state, or be mapped to, internal events via the

evmap command

(Page 58). When mapped to events, the active level may repro­grammed to be either active-open or active-closed. Active means
that an event is mapped to an e xternal alarm output that is currently
active. (See “Alarm I/O” on Page 21 for electrical parameters and
typical examples of alarm usage.)

Inputs—Alarm inputs are used to generate events in the event log
and also generate SNMP traps if so programmed by the
command. They may be directly read via the

alarm command, as

events filter

well. They may also have their active level set to be either active
high or low. (

alarm active high; alarm active low)

Naming—Finally, both inputs and outputs may be named by users
to allow for easy identification. For e xample, “Fire Alarm” could be
used as the name for Alarm Input 1. Traps are sent with this name
so that users may more easily identify the source of the alarm.

Subcommands:

active [open|closed]—Set alarm input/outputs active state.
set [open|closed] —Latch alarm outputs to one state to ignore events

which are assigned to them.

name [name_string]—Create a user defined “name” for each alarm. No

spaces, 16 characters maximum; not compatible with “

all”.

Command Example #1:

alarm in all

50 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Returns:

alarm: Active Current
alarm: Type # Name Level Reading
alarm: ====== = ================ ====== =======
alarm: Input 1 AlarmInput1 closed open
alarm: Input 2 AlarmInput2 closed open
alarm: Input 3 AlarmInput3 closed open
alarm: Input 4 AlarmInput4 closed open

Command Example #2:

alarm out 2 set closed

Returns:

alarm: Active Current
alarm: Type # Name Level Reading
alarm: ====== = ================ ====== =======
alarm: Output 2 AlarmOutput2 closed closed

Command Example #3:

alarm in 3

Returns:

alarm: Active Current
alarm: Type # Name Level Reading
alarm: ====== = ================ ====== =======
alarm: Input 3 AlarmInput3 closed open

alert Alert another LEDR Radio in the Network

Usage: alert <3 digit unit ID>|all
This command is used to sound the alert buzzer on another radio. This

function allows you to signal a radio and alert someone that the Order­wire handset should be picked up.

The three-digit number following the command indicates the unit ID of
the radio that will be signaled. Radios available for signaling can be
determined by issuing the

network command. See “USING ORDER-

WIRE” on Page 99 for more information.

arp Address Resolution Protocol (ARP) Setting of Ethernet Port

Usage:

arp [-a | -s [ip address] | -d [ip address]

View the ARP table

-a

-s Add the IP address to the ARP table. The radio will proxy ARP

for any addresses that are added

-d delete the IP address from the ARP table

This command displays the contents of the radio’s ARP table, which is
a listing of IP addresses of which the radio is aware. It can also be con­figured to “spoof,” or proxy, for other (non-LEDR) devices that are
managed using the radio’s out-of-band Service Channel and directly

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 51

connected at some point to a radio’s Ethernet port, or to a common hub
with a LEDR radio. In other words, the radio network can be configured
for seamless integration of other IP-manageable devices by responding
to ARP requests and/forwarding IP traffic directed to those devices.

See the

route command on Page 77 for information on other necessary

configuration steps to allow for IP connectivity to LEDR radios and
associated devices using the radio’s network-management channel.

ber Bit-Error Rate of the RF Link

Usage:

ber

This command displays pre-FEC and post-FEC Bit-Error Rate (BER)
between the LEDR radios in the first link.

NOTE: The BER measurement limit is 1E-8. For more reliable infor-

mation on the link-error rate, use the g821 demod command.

bert Bit-Error Rate Test of Data Interface

FT1

E1

FE1

Usage:

bert

FT1/E1 interface port lines to output a user-selectable pseudo-random

bert [linelist] [-e [pattern] | -d | -i [error] | -lp | -le | stats]

is used for diagnostic purposes by causing the selected line of the

bit sequence, either framed or unframed. This command also allows the
user to measure the bit error rate, number of errors, etc. This command
tests all T1/E1 timeslots without regard to the timeslot command’s con­figuration.

linelist—List of local line interfaces. Can be single line number or line-

name (see
linenames, a range of line numbers (for example: 1-4), or if

linename command), comma-separated list of line numbers or

linelist is not

given, all lines will be tested.
NOTE: The hyphen is part of the argument string and must be included

for the command to function.
Subcommands:

Control—

-e Enable bert generation/monitoring for line(s)

Can be immediately followed by the test pattern index value

-lp below). If none is included in the command, the

(See
last-used pattern will be implemented.

-d Disable bert generation/monitoring for line(s)

-i Inject error. Index specifying type of error to inject. If no error

is specified, last error selected is used.

52 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Reference—

-lp List available pseudo-random bit patterns

(See Table 17 on Page 53 for options.)

-le List available errors to inject

(See Table 18 on Page 53 for options.)

stats Display bert statistics

Table 17. Pseudo-Random Bit Patterns

Index Description Data

0 Unframed 2^11 (Factory Default) No
1 Unframed 2^15 Yes
2 Unframed 2^20 No
3 Unframed 2^23 Yes
4 Unframed 2^11 with 7 zero limit No
5 Unframed 2^15 with 7 zero limit No
6 Unframed 2^20 with 14 zero limit

(QRSS/QRS/QRTS)
7 Unframed 2^23 with 14 zero limit (non-standard) No
8 Framed 2^11 No
9 Framed 2^15 Yes
10 Framed 2^20 No
11 Framed 2^23 Yes
12 Framed 2^11 with 7 zero limit No
13 Framed 2^15 with 7 zero limit No
14 Framed 2^20 with 14 zero limit

(QRSS/QRS/QRTS)
15 Framed 2^23 with 14 zero limit (non-standard) No

Inversion

No

No

Table 18. Errors to Inject

Index Description

1 CAS multiframe (MAS) pattern error (E1 only)
2 Fs (T1) or MFAS (E1)
3 PRBS error
4 Change of frame alignment, 1 bit minus
5 Change of frame alignment, E1, 1 bit plus
6 CRC6 for T1, CRC4 for E1
7 Frame bit error...Ft, FPS, or FAS bit error depending on current

8 Linecode violation

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 53

framer mode

Background information on bert command:
The bit error-rate test command, bert, is used to evaluate the link

between the LEDR data interface and the customer premises equipment
(CPE). When used, the LEDR radio will send a test pattern out of the
LEDR FT1/E1 Data Interface lines towards the CPE while simulta­neously attempting to receive the same pattern back from the CPE. For
example, you can loopback the CPE’s external data device’s I/O, then
issue a

bert command to the LEDR radio to check the integrity of the

wire connection. The test pattern can be user-selectable. (See bert com­mand Options above for further information.)

NOTE: The bert command will not test or evaluate the integrity of the

LEDR radio link. (See “BENCH TESTING OF RADIOS” on

Page 122 for further information.)

NOTE: When operating FT1 or FE1 interfaces, this command tests all

T1/E1 timeslots without regard to the timeslot command’s
configuration.

boot Boot from Active/Archive Software

Usage:

boot [<1|2|-s|-o>]

This command is used to view or change the radio’s active software
image. If

2) is displayed. A selection of 1 or 2 after the command (e.g.,

boot is entered alone, the currently active firmware image (1 or

boot 2) ini-

tiates a reboot from that image. (A message appears to confirm that you
wish to reboot the radio firmware.) Upon reboot, the radio and all radio
functions are restarted in a manner similar to turning the radio power off
and then on again. The radio is taken out of service until it re-initializes,
and the link loses synchronization until the reboot process completes
and the demodulators at both ends reacquire the radio signals.

A choice of software images allows booting an alternate version of radio
software. The ability to have two radio-resident software images allows
radio software reprogramming over-the-air and the ability to restore
operation to the original software if required.

Subcommands:

1 Boot from Image 1
2 Boot from Image 2

-s Boot from the active (same) image

-o Boot from the inactive (other) image

buzzer Buzzer

Usage:

54 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

buzzer

This command briefly sounds the radio’s piezo buzzer for testing. It
should be used only from the

CONSOLE Port.

Example Response:

buzzer: Starting test
buzzer: T est complete

clkmode Clock Mode (Subrate Radios Only)

530

FT1

E1

Usage:

clkmode [<internal|exttx|looped|extdce>]

This command displays or sets the source of the radio’s transmit clock.
For synchronization purposes, several different clocking schemes can
be used. See Table 10 on Page 23 for the combinations of radio band­width, data rates and modulation types that are available for subrate
radios. Table 11 on Page 24 shows the combinations available for full
rate radios.

Subcommands:

internal—Internal oscillator sources TC; RC derived from far end

of radio link (default).

exttx—ETC accepted from external equipment on EIA-530 inter-

face; RC derived from far end of radio link.

looped—Recovered RF (RX) clock; TC is synchronized to RC;

RC is derived from far end of radio link. Note: Do not use looped
clocks at both ends of any radio link.

extdce—ETC and ERC are accepted as inputs on the EIA-530

interface.

NOTE: Earlier versions of the software may display the Clock Mode

as NORMAL instead of INTERNAL.

Firmware Version 2.4.0 and Later – Use the

clkmode command to

determine which port has been selected to drive the timing at the inter­face.

Firmware Version 2.3.1 and Earlier – This command allows the var­ious possible clock sources to be prioritized. As timing sources become
available, the highest-priority source will be chosen by the system. If
attaching to the network or equipment that provides timing, a universal
form of the command would be

clkmode 1 2 3 4 internal. If attaching to

equipment that will provide looped-back timing, a universal form of the
command would be

clkmode remote internal. If both ends of the link pro-

vide looped timing, the internal clock source should be selected at one
end by entering

clkmode internal. Note that at least one end of the link

should have either network or internal timing selected.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 55

NOTE: Firmware versions 2.3.1 and earlier, require that this parameter
be properly configured for correct operation of the link. More recent
firmware versions do not require that this item be manually configured.
However, the

clkmode command may still be used to determine which

port is being used to drive the timing.
Firmware Version 3.0.0 and Later– The

only to the EIA-530 interface.

coffset Carrier Offset of Radio Modem

Usage:

coffset

This command displays the Modem Carrier Frequency Offset.

con Console port configuration on LEDR front panel

Usage: con (baud [300|1200|2400|4800|9600|19200|38400|115200]) (parity

[none|even|odd])

This command sets or displays the CONSOLE Port’s operating parame­ters. The

CONSOLE Port data rate is set or displayed using the baud sub-

command. The parity is set or displayed using the
The default setting is 9600 bps, no parity, 8 data bits and 1 stop bit.

config Configuration

Usage:

config [get|send|getall] [filename|console] [hostIP]

clkmode command applies

parity subcommand.

This command is used to get or send a radio configuration file.
The radio stores its configuration data in a file that you can download

using the

config send command. The output can be directed to a file or to

the NMS window, either in a Telnet session or a serial NMS session.
The

config send command allows sending the configuration file over the

Ethernet management channel and storing it on a PC running a TFTP
server.

Subcommands:

send—Upload entire radio configuration file to host (includes all

radio-specific data)

get—Download radio configuration file from host (DOES NOT

download radio-specific data)

getall—Download entire radio configuration file from host

(including all radio-specific data)

Radio-specific data includes IP address, network settings, frequencies,
target power thresholds, calibration data, and IP routing table.

Command Example:

config send config.txt 192.168.1.14

56 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

This sends the configuration file to a TFTP server running on host

192.168.1.14 and stores it as a file called config.txt.

date Date

Usage:

date [MM/DD/YYYY]

This command sets or displays the date and time of the radio’s internal
real-time clock. The real time clock operates from an internal lithium
battery so it is running even if the radio has no DC power connected. The
date format may also be set or displayed from this screen for one of three
formats: U.S., European, or generic.

The real time clock is fully compliant with year 2000 standards.
Subcommands:

date format [<1-3>]

Date Format 1: mm/dd/yyyy (All numbers)
Date Format 2: dd/mm/yyyy (All numbers)
Date Format 3: dd-MON-yyyy (English abbreviation of month)

Example Response:

dtmf Dual Tone, Multi-Function tone selection

Usage:

dtmf [on|off]

date: 07-JUN-1999 08:11:30

This command is used to turn the DTMF signaling feature on or off.

eia530 EIA-530 selection

530

Usage:

eia530 [rts <on|off>] [dtr <on|off>]

This command is used to set or display the status of the EIA-530 control
lines (RTS and DTR).

ethernet Ethernet Port’s Hardware Address

Usage:

ethernet

This command displays the fixed hardware address of the radio’s
Ethernet port. This address is globally unique; it is assigned at the fac­tory and cannot be changed.

events Events

Usage:

events [subcommand] [<arguments>]

Subcommands: pending

filter [event#] [count]
init
desc [<event#>]

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 57

This command allows viewing the pending events (pending), sup­pressing the notification of particular events (
processing (

init) and display of event descriptions (desc). To turn off log-

filter), initializing events

ging (notification in the event log) for a particular event, the filter count
value should be set to zero.

Events 135-138 are
event state of the

remote alarm in [1-4], respectively, which reflects the

alarm in [1-4] of the remote-located radio at the other end

of the RF link.
Example Response:

events {events}: -DEMOD_ACQUISITION (Event #27)
events: Event#0 Filter count=1
events {init}: The event log has been re-initialized
events {desc}: Event#40 Description­IO2_DIG_REM_LPBACK

evmap Event Mapping (for Alarm Output and LEDs)

Usage: evmap [subcommand] [event #] [arguments]
This command sets or displays which radio system events cause alarm

indications on the front panel LEDs or the rear panel
nector. The user can rename the alarm events, but they cannot be
deleted, nor can new ones be created.

The subcommands specify which output will be asserted (
upon occurrence of an
spaces between them. The

event #. Multiple outputs can be specified with

dump option allows determining the current

event mapping for all of the events or, optionally, a specified numeric
range of events.

ALARM I/O con-

led or aout)

Events 135-138 are
event state of the

remote alarm in [1-4], respectively, which reflects the

alarm in [1-4] of the remote-located radio at the other end

of the RF link. Use the event filter counter to enable each particular
event. Use

evmap and map to alarm output contact when necessary.

Subcommands are listed below:

led [ioalarm|txalarm|rxalarm|alarm|none]—Maps front panel LED(s)

to an event.

aout [none|1|2|3|4]—Maps an alarm output(s) to an event.
dump [<range>]—Display the LED and alarm output mappings

for all events.

See Figure 8 for reference to the Front Panel LEDs. Refer to Alarm—

Rear Panel on Page 129 for the pinouts of the

ALARM I/O connector and

Disabling the Front Panel Alarm LED for Unused E1 Option Ports on

Page 88 for further information.

fec Forward Error Correction Statistics

Usage:

58 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

[fec <clear>]

This command displays corrected bytes and uncorrectable FEC block
errors.

Example Response:

fec: 1812992 Correctable Bytes
fec: 2 Uncorrectable Blocks

freq Frequency of TX & RX Channel

Usage:

freq [<tx|rx>] [<freq>] [<freq>]

This command sets or displays the transmit and receive frequency.
Example Response:

fset Frequency Setting

Usage:

fset [<min freq>] [<max freq>]

freq {TxFreq}: 942175000 Hz
freq {RxFreq}: 944175000 Hz

This command sets the absolute frequency limits of the transmitter and
receiver.

Example Response:

fstruct Frame Structure

fset {Tx MinFreq}: 1350000000 Hz
fset {Tx MaxFreq}: 1535000000 Hz

fset {Rx MinFreq}: 1350000000 Hz
fset {Rx MaxFreq}: 1535000000 Hz

FT1

E1

FE1

Usage:

fstruct [linelist] [mode <0-7|none>]

This command is used to set or display the span(s) frame structure. The

[linelist] variable represents a list of line interfaces. This entry can be

either a single line number or line name (see

linename command), a

comma-separated list of line numbers or line names, a range of line
numbers (i.e., 1-4), or if

linelist is not given all lines.

In general, this parameter should be configured to match the frame
structure used by the customer premises equipment. The

fstruct com-

mand also controls the generation of performance report messages in
ESF modes. In E1 radios, an unframed mode is available by issuing the
command

fstruct mode 8.

In Fractional-E1 mode timeslot 0 is always sent, and for fstruct modes 4
through 7, timeslot 16 must be added to the payload list for proper oper­ation.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 59

Table 19 shows a list of line mode values for T1 interfaces and Table 20

for E1 interfaces.

Table 19. T1 Frame’s Line Mode Values

Value Mode

0 FT only (default)
1 ESF
2 ESF + PRM
3SF
4 SF + JYEL
5 ESF + CRC
6 ESF + CRC +PRM

Table 20. E1 Frame’s Line Mode Values

Value Mode

0 FAS only (default)
1 FAS + BSLIP
2 FAS + CRC
3 FAS + CRC + BSLIP
4 FAS + CAS
5 FAS + CAS + BSLIP
6 FAS + CRC + CAS
7 FAS + CRC + CAS + BSLIP
8 Raw, unframed, transparent mode.*

* Mode 8 is forbidden in fractional modes.

g821 G.821 Information

FT1

E1

Usage:

demod io1|io2|io3|io4|all [clr]

This command is used to show or reset the radio’s G.821 information.

FE1

The LEDR family of radios support the ITU G.821 recommendation for
display of four categories of statistical availability information: avail­able seconds, errored seconds, severely errored seconds, and unavail­able seconds.

Example Response:

group Group Number in LEDR System

Usage:

60 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Group [<0-99>]

Demodulator: ERROR FREE
Savail: 1036

Sunavail: 0
ES: 0
SES: 0

This command sets or displays the network group in which the radio is
operating.

Example Response:group: 1
In a typical system, all the radios would operate in the same group,

allowing the flow of network-management and orderwire activity
between radios and from one radio link to any other in the system. At a
repeater site, all radios must be set to the same “group number” (and not
group zero) for this flow of information to take place. Setting group
numbers differently in repeater systems isolates links from each other
from a network-management perspective, allowing segmenting net­works and controlling the flow of network-management information.
Across a radio link, groups can differ from each other; only radios phys­ically connected by Ethernet cables to each other or to the same hub
must have the same group number to intercommunicate.

Setting a radio’s group to zero prohibits all network management traffic
from flowing to and from that radio’s Ethernet port.

help or ? User help

Usage:

help or ?

This command can be used alone, to list all available commands, or with
a specific command, to provide syntax assistance. Entering
or after a command will display the usage and possible subcommands of
the command.

icopy Image Copy

Usage:

icopy [<app|dsp|fpga|scripts>]

This command is used to copy the active software image to the inactive
software image.

Each radio stores two independent firmware files that control the radio’s
operation. The radio uses one of the files as the active software, which
is running. The other software file is inactive and is not running. The
ability to have two firmware images allows firmware reprogramming to
be done over-the-air and provides the ability to restore operation to the
original software if required. The
a selected subset, of the regions of the active image to the inactive image
area. This is typically used to update the inactive image after loading
new firmware and rebooting the radio from the new image.

help before

icopy command allows copying all, or

To view or change the active firmware image see “boot” on Page 54.

FT1

idlepat Idle Pattern

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 61

E1

FE1

Usage:

idlepat [<linelist>] [slots <slotlist>] <pattern>

This command is used to set or display the bit-pattern used in the idle
timeslots. Some equipment requires a particular pattern. To set the bits
to all ones, use the command

idlepat ff. To set the bits to a zero followed

by seven ones, use the command
to subrate models.

Argument Definitions:

linelist—Represents a list of line interfaces. It can consist of a single

line number or linename, a comma separated list of line num­bers or line names, a range of line numbers (i.e., 1–4) or, if
linelist is not given, all lines. See Table 19 on Page 59 for a list
of line numbers.

slotlist—A list of timeslots consisting of a single slot number,

comma separated list of slot numbers, or a range of slot num­bers (i.e., 2-8).

pattern—A 2 hex digit value (default value is 17).

info Information as Selected by User

idlepat 7f. This command does not apply

Usage:

info [<owner|description|contact|name|location>] [<string>]

info clear [<owner|description|contact|name|location>]

This command is used to program information into (or clear it from)
radio memory that is particular to the radio site or installation. The infor­mation is intended for identification and memorandum needs.

Five text fields are provided. The owner’s name string is limited to 10
characters. The description, contact, location, and name text fields are
limited to 254 characters. Any standard, printable ASCII characters are
allowed. The description field is programmed at the factory and is not
user-definable.

To display the owner’s name text field enter
contact information enter
enter

info name. To display the location information enter info location.To

display all the parameters enter
To change the info text, enter text after

name.

interface Interface for User Data

530
FT1

Usage: interface [e1|t1|530]
This command is used to set or display the payload data interface. If an

E1

FE1

optional data interface board is installed, the user may select between
the T1 or E1 interface modes. The system will recommend a reboot and
provide a prompt to do so. This command must be properly set, or no
communication will be possible.

info owner. To display the

info contact. To display the name information

info.

info owner or other info field

62 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Example Response:

interface {Line}: e1

NOTE: 1E1 through 4E1 data rates are not supported when using the

interleave Interleave

EIA-530 interface. The maximum EIA-530 data rate is 768
kbps.

Usage:

interleave [1-12]

This command is used to set or display the interleave depth. The depth
range is 1–12 with settable values of 1, 2, 3, 4, 6 and 12. Default setting
for Subrate is 2, Default setting for Fullrate is 12. The interleave setting
must match at both ends of a radio link, or the link cannot synchronize
regardless of any other radio settings or signal strength. Larger inter­leave settings cause longer link latency; in latency-sensitive applica­tions, interleave value should be reduced to as small a value as is
possible while maintaining good link performance (See the

g821 demod

command).

Example Response:

interleave: 1

Background:
In digital communications, interference often occurs in the form of short

noise bursts. These bursts normally corrupt a series of consecutive bits.
Interleaving is a digital algorithm that allows Forward Error Correction

(FEC) to better handle bursts of noise. Interleaving reorders the data so
that the symbols that would normally be neighbors in a given block are
spread among multiple blocks. FEC works on a block of data of a spe­cific size and can properly correct errors as long as the number of errors
is small enough. With interleaving, the number of errors that occur
within a single block is reduced, thereby allowing the FEC to more
effectively correct burst errors.

The value of the interleaver function should not be changed unless there
are latency limitations for the radio link. If low latency is required, then
the interleave can be changed, but the ability to correct for the influence
of burst-noise on the BER will be reduced.

ip Internet Protocol Settings

Usage:

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 63

ip [subcommand] [<argument>]

Subcommands:

address [x.x.x.x]
netmask [x.x.x.x]
gateway [x.x.x.x]

IP port [ETH|AIR]

This command sets or displays the Internet Protocol (IP) settings for the
LEDR radio. The subcommands allow you to set the IP

mask

, IP gateway, or IP port. The port setting determines whether IP com-

address, IP net-

munication to and from a particular radio occurs over the radio link or
via a PC (or other networked device, such as a router) directly connected
to the radio’s

ETHERNET port. See “Network” on Page 39 for additional

information.
Example Response:

IP Address: 10.2.142.143
IP Netmask: 255.255.0.0

IP Gateway: 0.0.0.0
IP Port: ETH

iverify Image Integrity Verification

Usage:

iverify [image <1|2>] [<app|dsp|fpga|scripts>]

This command is used to determine the data integrity of the two firm­ware image files that reside in the radio. (See also

Example Response:

iverify: Image has been verified

lcd Liquid Crystal Display (LCD) Test

Usage:

lcd [<on|off|restore>]

This command starts a two-part test of the radio’s front panel LCD.
When
When the key is pressed, the screen should change to com-

lcd is first entered, the display should appear with all blocks black.

RETURN

pletely blank.

icopy, above.)

led Light Emitting Diode test (Front Panel LEDs)

Usage:

led [<alarm|rxalarm|txalarm|ioalarm|all|restore>] [<on|off>]

This command is used to test the front panel LEDs. If no argument is
given, all front panel LEDs (except

POWER) should flash in sequence.

Press Control-C to end the test. (See “Disabling the Front Panel Alarm

LED for Unused E1 Option Ports” on Page 88 for further information.)

Command Example:

led alarm on

64 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Returns:

led: Alarm LED ON

line Attributes of lines (cables) used with the radio’s T1 or E1 Interface.

FT1

E1

FE1

FT1

This command is used to set or display the internal pulse template selec­tion used by the LEDR interface to compensate for signal distortion cre­ated by various lengths and types of interface cables.

The

[linelist] variable represents a list of line interfaces. It can consist of

a single line number or line name, a comma-separated list of line num­bers or line names, a range of line numbers (i.e., 1–4), or if linelist is not
given all lines will be displayed. See Table 19 on Page 59 for a list of
line numbers.

Usage For T1:

line [linelist] [cable length<0–4>] [spec]

T1 interfaces require setting of a minimum of two variables: ITU cable
specification and cable length. Table 21 shows the specification options
and Table 22 lists values used for various lengths of standard 100 Ω
twisted pair cables

Table 21. ITU Cable Specifications—Subcommand [spec]

Specification

g.775 (Default)
i.431

Table 22. Cable Length Values—Subcommand [cable length]

Value Line Length (Meters) Line Length (Feet)

0 0.3 to 40 (default) 1 to 133 feet (default)
1 40 to 81 133 to 266
2 81 to 122 266 to 399
3 122 to 163 399 to 533
4 163 to 200 533 to 655

E1

FE1

Usage For E1: line [linelist] [spec]
The only cable specification needed for E1 is the ITU cable type.

Table 23 lists the specification values for two standard 120 Ω ITU-T

G.703 cables

Table 23. E1 Cable Specifications—Subcommand [spec]

Specification

g.775 (Default)

i.431

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 65

Command Example:

LEDR> line

Returns:

line {LINE1} {cable}: ITU-T G.703 120 Ω T wisted Pair

{spec}: i.431

line {LINE2} {cable}: ITU-T G.703 120

{spec}: g.775

line {LINE3} {cable}: ITU-T G.703 120

{spec}: g.775

line {LINE4} {cable}: ITU-T G.703 120

{spec}: g.775

linecode Line Code

Ω Twisted Pair
Ω Twisted Pair
Ω Twisted Pair

FT1

E1

FE1

Usage:
This command sets or displays the radio’s linecode (T1: B8ZS or AMI;

E1: HDB3 or AMI).
The

linecode [linelist] [B8ZS|AMI|HDB3]

[linelist] variable represents a list of line interfaces. It can consist of

a single line number or line name, a comma-separated list of line num­bers or line names, a range of line numbers (i.e., 1–4), or if linelist is not
given all lines will be displayed. See Table 19 on Page 59 for a list of
line numbers.

The most typical Fractional-T1 selection is to choose B8ZS for all ports
by entering
entering

linecode b8zs and E1 interfaces choose HDB3 for all ports by

linecode hdb3.

Example Response:

linecode: HDB3

linemap Line Mapping

FT1

E1

FE1

Usage: linemap [maplist]
This command is used to set or display the current span mapping con-

figuration for E1 and T1 configurations. The
from 1 to 4 alpha-numeric characters specifying line interface to span
mapping. Valid numbers are 1–4. Valid span characters are a–d.

maplist variable consists of

Example: Entering

linemap 1d 2b 3a 4c causes the following:

maps line 1 to span d
maps line 2 to span b
maps line 3 to span a
maps line 4 to span c

66 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

NOTE: FE1/FT1 always use Span A.

Figure 16 shows the example pictorially. There are no restrictions of

which lines are mapped to which data channel spans.

Invisible place holder

LEDR LINE

E1/T1 SPAN(RJ-45 JACK)

NOTE: The cluster of four RJ-45 jacks on the rear of the radio is coded
from left to right as 1, 2, 3 and 4 as viewed from the outside of the
chassis.

linename Line Name

FT1

E1

FE1

Usage: linename <linelist> <namelist>
This command is used to set or display meaningful names of up to 16

characters to the four possible line interfaces.The
resents a list of line interfaces. It can consist of a single line number or
line name, a comma separated list of line numbers or line names, a range
of line numbers (i.e., 1–4) or, if linelist is not given, all lines. See

Table 19 on Page 59 for a list of line numbers.

1

2

3

4

Figure 16. Example of Linemapping

Span A

Span B

Span C

Span D

[linelist] variable rep-

The namelist variable consists of a list of names. It can consist of a
single name or a comma/whitespace-separated list of names. Names can
be up to 16 characters long.

linerr Line Errors

FT1

E1

FE1

Usage:

linerr [linelist] [on|off]

This command measures and displays the line performance between the
radio and customer equipment. Entering the command
tialize the line error measurement feature. The

[linelist] variable repre-

linerr on will ini-

sents a list of line interfaces. It can consist of a single line number or line
name, a comma-separated list of line numbers or line names, a range of
line numbers (i.e., 1–4), or if linelist is not given all lines will be dis­played. See Table 19 on Page 59 for a list of line numbers.

log Log of Events

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 67

Usage: log [subcommand] [<argument>]
Subcommands: view [critical|major|minor|inform]

clear
send [filename] [hostIP]

This command is used to display and manage the event log file. Without
a subcommand, the complete log file will be displayed one page at a
time. If you are interested in less than the full report, use one of the fol­lowing subcommands:

view—Sets or displays the types of events to be displayed.
clear—Resets the event log and purges all events from memory.
send—Uploads the event log information to an IP address using TFTP

protocol in a way similar to the

config command. (See config command

on Page 56.)

NOTE: When setting up a link for the first time, after powering up the

unit, you may want to clear the event log. After logging in as

SUPER, enter the command log clear.

login Log into the radio’s CONSOLE port

Usage:

login [username]

This command allows access to configuration and diagnostics informa­tion as allowed by the radio system administrator. You can shorten the
login sequence by following the
name (

username).

login command with the user/account

Example:

LEDR> login

Returns:

Username>

Type: fieldserv (or appropriate user name)
Returns:

Password>

Type: (password)

NOTE: User names and passwords must not exceed eight characters

and are case sensitive. Do not use punctuation marks.

See

user command on Page 86 for more information on user access

levels.

68 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

NOTE: Only one user can be logged in through the CONSOLE Port at

a time. Any new login will close the previous user/account.
Other users can login simultaneously through the ETHERNET
Port or front panel.

logout Logout of the LEDR radio

Usage:

logout

This command is used to log out a user.

Subcommands:

loopback Loopback Functions

loopback command is used to set or display the loopback mode that

The
can be used for diagnostic purposes. Entering
parameters displays the current loopback mode.

Various data loopback modes can be used for diagnostic purposes. To
loop back Line Interface 1 towards itself, use
all line interfaces towards themselves and test the T1 option, use

back local

use

Entering

. To loop back all data at the remote site towards the RF path,

loopback remote.

loopback without any parameters displays the current loopback

mode.

Usage 1 for Fractional-T1:

loopback without any

loopback iol 1. To loop back

loop-

loopback [none|rf|local|remote|iol [linelist]|ior [linelist] <timeout>]

Usage 1 Subcommands:

FT1

E1

FE1

iol—The iol subcommand, for “I/O local,” refers to the local line loop-

back.

local—Enables a local digital loopback mode. With this test, incoming

bits on the EIA-530 interface are sent back out the radio’s

DATA con-

nector before the modem module. This can be used to verify proper
interconnection between the radio and the connected equipment. None
of the radio’s RF circuitry is involved in this test

. (This description

covers only EIA-530 operation.)
For T1/E1 operation, the local subcommand enables a local digital MUX

loopback in the radio transceiver’s FT1 Interface Board before going out
to the main transceiver board.

none—Disables all loopback operation. This is the mode for normal

point-to-point operation.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 69

remote—EIA-530 Operation: Instructs the radio at the other end of the

link to “echo” all of the data it receives. This is an effective way of
testing the entire communications system, including the transmission
path over the air. (In the event of a communications failure with the
remote radio, the message “Remote Error” is displayed, and no loop­back mode is selected.

T1/E1 Operation: The

remote subcommand mimics the ior subcommand

described below.

rf—Enables an RF loopback mode. This mode allows testing of the local

radio transceiver’s transmit and receive chain. The receiver is rechan­neled to the transmitter frequency.

NOTE: RF loopback testing is a valuable diagnostic tool, but it should

not be considered an exhaustive test of the transceiver. In some
cases, interaction between the transmit and receive
phase-locked loops (PLLs) can occur, causing erroneous
results during testing. Changing the transceiver’s RF output
setting may resolve these problems. Also, in some configura­tions, insufficient signal strength for RF loopback testing may
exist.

In addition, on all LEDR radios except the LEDR 1400 Series,
the transmit and receive frequencies must be within the same
subband for RF loopback to function.

Variables:

ior—An abbreviation for “I/O remote”, refers to the remote line loop-

back. Remote loopback port selection is relative to the local port. The
radio link will translate any line mapping to select the correct physical
remote port to loop back, based on the selected local port.

linelist—Represents a list of local line interfaces. It can consist of a single

line number or line name, a comma-separated list of line numbers or line
names, a range of line numbers (i.e., 1–4), or if linelist is not given all
lines. See Table 19 on Page 59 for a list of line numbers.

timeout—The timeout variable may be set between 0 minutes (never time

out) and 60 minutes.

FT1

Usage 2:

loopback [inb|outb] [linelist] [on|off] [-u <code>] [-d <code>]

Usage 2 (E1) subcommands:

inb—Refers to the inband loopback configuration.

outb—Refers to the outband Extended Super Frame (ESF) loopback

configuration.

70 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

linelist—Represents a list of local line interfaces. It can consist of a single

line number or line name, a comma-separated list of line numbers or line
names, a range of line numbers (i.e., 1–4) or, if linelist is not given, all
lines. See Table 19 on Page 59 for a list of line numbers.

on|off—To turn the loopback feature on or off.

-u <code>—Allows setting of the inband|outband loopback upcode.

The inband code consists of 1-7 bits, binary format.
Example: 00001

-d <code>—The subcommand allows setting of the inband|outband loop-

back downcode.

The outband code consists of 6 bits within the 16 bit ESF data
link codeword.

Example: 000111
within 16 bit codeword: 0<000111>0 11111111

model Radio Model Number

Usage:
This command displays the radio model number. This information is

programmed at the factory and cannot be changed.

modem Modem

Usage:
This command sets or displays the radio modem modulation type and

data rate. Table 24 shows the alphanumeric codes that can be entered for
fullrate radios and Table 25 for codes for subrate radios. Note that the
E1 selections are only valid on fullrate radios.

Table 24. Modem Command Arguments for E1 (Fullrate) Radios

1. The available selections depend on the radio’s factory programmed bandwidth. See

Table 10 on Page 23 for the allowable combinations of bandwidth, data rates and

modulation types.

model

modem [matrix id] [+cas]

DATA RATES

Modulation
Type

QPSK A7 ———
16 QAM B7 B8 ——
32 QAM C7 C8 C9 C10

1xE1 2xE1 3xE1 4xE1

1

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 71

Table 25. Modem Command Arguments for

EIA-530 & FT1 (Subrate) Radios

DATA RATES

Modulation
Type

QPSK A1 A2 A3 ———
16 QAM B1 B2 B3 B4 B5 B6
32 QAM —————C6

1. The available selections depend on the radio’s factory programmed bandwidth. See

64
kbps

128
kbps

256
kbps

384
kbps

1

512
kbps

768
kbps

Table 10 on Page 23 for the allowable combinations of bandwidth, data rates and

modulation types.

Command Examples:
To set 32 QAM with 1xE1, enter

modem C7

To set 16 QAM/384 kbps, enter modem B4

Special-Order Argument

NOTE: The cas command functions only in radios equipped with

either the FT1 or FE1 Interface and user firmware of revision

3.0 or higher.

FT1

cas—Set or display the Channel Associated Signaling (CAS) status for

Fractional-T1 or Fractional-E1 operation. The available selections are

FE1

modem +cas

Robbed-Bit Signaling bits to pass over the link. In the FE1 case, this
command, in conjunction with the
handling of the timeslot 16 signaling bid.

network Network

Usage:

network

This command displays the radios that can be reached via the Service
Channel for Orderwire and Element Management System (EMS) diag­nostics.

Example Response:

Network
Address

10.2.142.148

10.2.200.196

passwd Password

(on) and modem -cas (off). This command provides for FT1

fstruct command, ensures the proper

Netmask

255.255.0.0

255.255.0.0

RF
Hops
0
1

Ethernet
Hops
0
0

Received
on Port
LPBK
AIR

Owner
Tech Serv 1
Tech Serv 2

Usage:

passwd

72 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

This command is used to change the password for the user currently
logged in. A maximum of 8 characters is allowed, and it is case sensi­tive.

ping Ping IP Address (Send ICMP Echo Request)

Usage:

ping [ip address] [reps]

This command is used to verify the accessibility of any IP address on the
network to determine availability and measure network response time.
This command requires proper IP Routing and IP connectivity.

ipaddress—IP address to which you will send the request
reps - Number of requests-to-send (default = 1, maximum = 1000)

Example:

LEDR> ping 10.2.233.12 5

Example Response:

PING 10.2.233.12: 56 data bytes
64 bytes from 10.2.233.12: seq=1, ttl=255, rtt=49ms
64 bytes from 10.2.233.12: seq=2, ttl=255, rtt=6ms
64 bytes from 10.2.233.12: seq=3, ttl=255, rtt=9ms
64 bytes from 10.2.233.12: seq=4, ttl=255, rtt=33ms
64 bytes from 10.2.233.12: seq=5, ttl=255, rtt=12ms

pll Phase Locked Loop

Displays current TX & RX frequencies, and TX/RX PLL status.
Example Response:

pll:

Tx Freq = 438075000 Hz, Rx Freq = 428075000
Tx PLL Status: Locked
Rx PLL Status: Locked

pmmode Power Measurement Mode

Usage:

pmmode <on|off>

This command is used to generate an unmodulated carrier on the trans­mitter frequency for the purpose of measuring RF output power or fre­quency stability using a spectrum analyzer.

Example Response:

pmmode: off

NOTE: Enabling the power measurement mode (pmmode on) will take

the local link down (out-of-service).

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 73

rdnt Redundant (Protected Operation)

The

rdnt command is used to manage protected operation of the LEDR

radio and display operating status.
Usage:

rdnt [subcommand] [arguments]

Subcommands: active

default
hitless
ip
mode
nsd
status
swxcvr

temp
mode

The following subcommands are divided into two groups: read only and
read and set.

Read Only:

active—Shows whether the currently selected transmitter is active or

inactive.

default—Displays whether the radio is the default radio in a protected

configuration.

status—Protected status of this radio and the sibling radio.

Read & Set:

hitless—Sets or displays the hitless (error-free) switching status of the

receivers. It can be enabled or disabled using the

hitless on|off command.

In protected operation, either receiver (regardless of which transmitter
is active) can provide data to the user data port(s) in hitless mode. In
non-hitless mode, only the receiver in the active radio provides received
data. Radios operated in a space-diversity configuration must be config­ured to use hitless switching.

ip—Used to set or display the IP address to be kept in the memory of this

unit of the associated (sibling) radio in a redundant pair of transceivers.
In other words, the

rdnt ip setting of the top radio in a protected pair must

be set to the bottom radio’s IP address for proper switching and net­work-management functionality.

74 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

NOTE: The associated radio (sibling) IP address should be

programmed to the IP address of the other radio connected to
the Protected Switch Chassis. The associated radio IP address
is used by the redundant radio to share information between
the units. This address is necessary for warm-standby
switching. The associated radio IP address parameters do not
affect IP routing and forwarding, SNMP, or Telnet.

The rdnt swxcvr will not operate correctly if this parameter is
not set correctly.

mode [#]—Set or display one of three redundant operation modes

(

0 = Standalone, 1 = 1+1 Hot Standby, 2 = 1+1 Warm Standby).

status—Shows the state of both radios. Two status lines are displayed;
This Radio and Other Radio.

swxcvr—Forces a switchover to the inactive radio transceiver. (The

newly selected unit becomes the active transceiver.) The
eter must be configured correctly on both radios in order for the

rdnt ip param-

swxcvr

command to operate correctly.

NOTE: The rdnt swxcvr command should not be used within 2 minutes

of a power-up to ensure reliable communications exist
between the two transceivers.

temp—Set or display an over-temperature threshold (final amplifier

temperature in degrees Celsius), at which temperature switchover to the
other radio occurs.

nsd—Enable or disable network self-discovery between the units in a

protected pair
Example Response for

rdnt {status}: This Radio = OK
rdnt {status}: Other Radio = OK
rdnt {active}: inactive
rdnt {mode}: 1+1 Hot Standby
rdnt {ip}: 10.2.233.12
rdnt {hitless}: on
rdnt {default}: no
rdnt {temp}: 50
rdnt {nsd}: on

reframe Reframe Criteria for User Interface Ports

FT1

E1

FE1

Usage:
This command is used to set or display the reframe criteria. The [linelist]

variable represents a list of line interfaces. It can consist of a single line
number or linename, a comma separated list of line numbers or line

reframe [linelist] [2of4 | 2of5 | 2of6 | CFAS | CRC]

rdnt command:

names, a range of line numbers (i.e., 1–4), or if linelist is not given all
lines. See Table 19 on Page 59 for a list of line numbers.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 75

For Fractional-T1:

2of4 – 2 out of 4 Fbit errors (default)
2of5 – 2 out of 5 Fbit errors
2of6 – 2 out of 6 Fbit errors

For E1:

CFAS – Consecutive FAS errors (default)
CRC – 915 CRC (rx framer only)

reprogram Load Radio Firmware Into LEDR Radio

Usage: reprogram [subcommand] [<argument>]
Subcommands:

status

network [filename] [hostIP]

This write command loads the radio application software (firmware)
into the LEDR chassis from an external resource using Trivial File
Transfer Protocol (TFTP). A TFTP server must be running on the net­work and properly configured to serve the necessary file(s). See

“OPTION 3: Uploading Firmware from a Remote Server via Ethernet”
on Page 97 for further details.

rfocal Transmitter RF Output Calibration Table

Usage:

rfocal <freq region#> <cal-point#>

This command starts the RFOUT Calibration Sequence and should only
be used when directed by MDS factory personnel.

CAUTION:This command is used to recalibrate the internal transmitter

power output metering circuitry and may affect the accuracy of
the power output level measurement. Contact the Technical

Services Department at MDS for further instructions
before using this command. Ask for technical publication,
Retuning Procedure for LEDR II Radios, P/N 05-3633A01.

Recalibration may be necessary if the radio’s transmitting
frequency has been significantly changed. For the LEDR 400
and 900 radios, this is generally a change of more than two
radio channels. In addition, it is very important to verify the
power calibration is incorrect on the new frequency by
measurement with a calibrated external wattmeter before using
this command.

The radio frequencies of the LEDR 1400 radio can be changed
without impacting the accuracy of the power metering circuit’s
calibration.

Example Entry:

76 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

rfocal

Example Response:

Region 0
Index 0, Rfout = 18 dbm, Gain = 17
Index 1, Rfout = 20 dbm, Gain = 28
Index 2, Rfout = 22 dbm, Gain = 47
Index 3, Rfout = 25 dbm, Gain = 79
Index 4, Rfout = 27 dbm, Gain = 110
Index 5, Rfout = 30 dbm, Gain = 170
Index 6, Rfout = 32 dbm, Gain = 210

rfout RF Output Level Measurement

Usage:

rfout

This command displays the transmitter RF power output in dBm. See

“Watts-dBm-Volts Conversion” on Page 129.

rlogin Remote Login

Usage:

[<toUnitID>} [<UserName>]

The rlogin command is used to login to a remotely located radio via the

CONSOLE Port. It can be used to log into any radio that appears in the

network command display.

route Routing Tables for IP

Usage:

route [command [destination] [mask netmask] [gateway] [port]]

The route command is used to add, delete or modify the IP routing table
entries. Other radios in the network are automatically added to the
routing table using the radio’s “Network Self-Discovery.” Routing IP
traffic to other devices via the radio’s management channel can be per­formed by adding routes to the radio’s routing table.

Once the IP configuration is set using the
routing entries will appear in the routing table. The first of these routes
is the default route which has a destination address of 0.0.0.0. This route
is used when a more appropriate route is not available. Thus it becomes
the “catch-all” route. The second route that will appear is the default net­work route. This route has a destination address calculated by “anding”
the IP address and subnet mask together. The Next Hop address of this
entry will be the default gateway configured using the
the Interface will be the default port. This route is used to tell the radio
how to reach its base network.

ip command (Page 63), several

ip command and

The third route that is added has a destination address of 127.0.0.1. This
is known as the loopback route and is used when the radio sends a packet
to its own IP address.

Primary Commands:

print —Show the current IP routing table
add [address] mask [netmask] [gw] [port]—Add/Change a route

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 77

gw is a gateway IP address
port is specified as either “ETH” or “AIR”

delete [address] mask [netmask] [gw]—Delete a route

gw is a gateway IP address
stored—Display all user-added stored routes
flush—Deletes all stored routes
destination—Specifies the host to send command

Command Arguments:

mask—Where the mask keyword is present, the next parameter is

interpreted as the netmask parameter.

netmask—Specifies a sub-net mask value to be associated with this

route entry.

gateway—Specifies gateway IP address
port—Specifies IP port, either “ETH” or “AIR”

Example 1 Entry:

LEDR> route add 10.2.150.1 mask 255.255.255.255 10.2.150.101 air

Example 1 Response:

route: Route added

Example 2 Entry:

LEDR> route stored

Example 2 Response:

Destination Net Mask Next Hop Interface

10.2.150.1 255.255.255.255 10.2.150.101 AIR

10.2.140.0 255.255.255.0 10.2.227.51 ETH

Example 3 Entry:

LEDR> route print

Example 3 Response:

Destination Net Mask Next Hop Interface

0.0.0.0 0.0.0.0 0.0.0.0 ETH

10.2.140.0 255.255.255.0 10.2.227.51 ETH

10.2.150.1 255.255.255.255 10.2.150.101 AIR

127.0.0.1 255.255.255.255 10.2.227.5 LPBK

78 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Background on this command:

The LEDR Series of radios can be configured to pass IP management
traffic across the radio’s raw service channel. A process called “network
self-discovery” automatically configures IP routes between all radios in
a network (provided that the

group command has been correctly config-

ured throughout the system. (See “group” on Page 60). Also, see the arp

command on Page 51.

IP management traffic routing allows configuring and monitoring
devices other than LEDR radios using the same management channel,
providing clean integration of SNMP, Telnet, TFTP, and other IP man­agement methods via one channel that doesn’t use any of the customer
payload bandwidth of the radio network.

Routes must be added to the radios at two points in the system to support
routing IP traffic to and from the connected devices: 1. At the gateway
end (where the management station is located), and 2. At the destination
end. Routes are added to the radios using the same convention as used
in the MS Windows, Windows NT, and DOS operating environments.
The exceptions here are that a mask and port must be specified, as well
as the target and gateway IP addresses. At both ends, the command used
is exactly the same (see command Example 1, above). In the command
example given above, the route is being added at the gateway end. The
difference is that at the gateway end, the port is
end, the port is

eth. Routes do not need to be added at points between the

air, and at the destination

gateway and destination, because the radio network handles the routing
between radios via network self-discovery. However, in each radio, the
IP gateway must be specified as the IP address of the radio at the net­work-management gateway in the system.

NOTE: Gateway Settings in Connected Devices

In the connected IP-manageable device, use the local radio’s
IP address as the default IP gateway for the device.

NOTE: Routing in Protected Systems

Each route added to a protected radio must be added to both
units in the protected pair, as they are stored separately. The
radios in a protected pair proxy for one another depending on
which radio is active, so the routing functionality is unchanged
and either radio in a protected pair can be specified as the
gateway for a connected device; but if a protected LEDR radio
is removed for servicing, all the routing information must be
programmed in the remaining radio for proper IP management
functionality.

rssi Received Signal Strength Indicator

Usage:

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 79

rssi

This command displays the received signal strength. The measurement
is in dBm. Therefore, an RSSI of –80 dBm is stronger than a –100 dBm
signal. There may be a time delay between moving the antenna and
updating of the RSSI display. Be sure to allow adequate time between
antenna movements and observations.

rssical RSSI Calibration

Usage:

rssical <freq region#> <cal-point#>

This command starts the RSSI Calibration Sequence. See rfocal com-

mand

on Page 76 for conditions.

CAUTION:This command should never be used unless calibrated test

equipment has shown the radio to have inaccurate RSSI
calibration. Contact the Technical Services Group at

MDS for further instructions before using this
command.

Example entry:

rssical

Example Response:

Region 0
Index 0, RSSI = –110 dbm, Gain = –104
Index 1, RSSI = –90 dbm, Gain = –40
Index 2, RSSI = –75 dbm, Gain = +1
Index 3, RSSI = –60 dbm, Gain = +28
Index 4, RSSI = –45 dbm, Gain = +61
Index 5, RSSI = –30 dbm, Gain = +97

rxlock Receiver locked onto Remote radio

Usage:

rxlock

This command displays the current modem synchronization status.
Example Response:

sabytes SA Bytes in E1 Multi-framing

E1

Usage:

sabytes [linelist] [bytes <bytelist>]

: rxlock: Modem is locked

This command is used to set or display SA bytes in E1 multiframing.
The

[linelist] variable represents a list of line interfaces. It can consist of

a single line number or line name, a comma-separated list of line num­bers or line names, a range of line numbers (i.e., 1–4), or if linelist is not
given all lines. See Table 19 on Page 59 for a list of line numbers.

The

bytelist variable consists 5 hex bytes (i.e., 3c) representing SA[4-8].

To keep a bytes present value when modifying higher bytes (i.e., modi­fying SA[7] only) use a * character in the respective byte position.
Example:

80 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

sabytes 1 bytes *,*,*,3c changes only SA[7] for line 1 to 3c.

sernum Serial Number of Radio

Usage:

sernum

This command displays the serial number of the radio. The number dis­played with this command matches the serial number printed on the
serial number sticker on the radio chassis.

snmpcomm SNMP Community Names

Usage:

[<read|write|trap>][<string>]

This command is used to set or display SNMP community names. Com­munity names are passwords that are required to match at the SNMP
management station and each radio or other SNMP agent. You can add
security to the radio system’s network management by choosing
non-default community names (listed in the example) and setting the
community names in your management software to match.

Example Response:

snr Signal-to-Noise Ratio of Incoming RF Signal

Usage:

snr

: snmpcomm {read}: public

snmpcomm {write}: private
snmpcomm {trap}: public

This command displays the signal-to-noise ratio (SNR) of the received
signal in dB. The SNR is an indication of the quality of the received
signal. The higher this number, the higher the quality of the received
signal. SNR readings are invalid when the receiver is unlocked. See

rxlock command for details.

spur Spur Frequencies

Usage:

spur [<Frequency>|clear|default] [<frequencyToClear>]

This command is only operative for LEDR 1400 Series radios. It is used
to set or display the spur frequencies for the radio network. Add a dec-

imal point “

status Status

Usage:

.” to the end of a frequency input to signify MHz unit.

status

This command is used to display key performance and configuration
data.

Example Response:

status {Tx Freq}:438075000
status {Rx Freq}:428075000
status {Bandwidth}:100 kHz
status {Data Rate}: 256 kbps
status {Interleave}: 1

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 81

status {Clock Mode}:internal
status {RSSI}:–78 dBm
status {SNR}:28 dB
status {Rx Lock}:Locked
status {Tx RF Out}:30 dBm
status {TxKey}: Keyed
status {Temp}:37 Degrees C
status {IP Address}: 192.168.11.49
status {IP Netmask}: 255.255.0.0
status {IP Gateway}: 0.0.0.0

svch Service Channel Settings

Usage:

svch [subcommand] [<argument>]

Subcommands: baud [300|1200|2400|4800|9600

csize [5–8]
parity [none|even|odd]
stop [0–2]

This command sets or displays the Service Channel settings. For further
information, see “USING THE SERVICE CHANNEL” on Page 101.

telnetd Telnet Display or Terminate Session

Usage:

telnetd [kill session]

This command is used to display or kill (terminate) the current Telnet
session(s).

Entry Example:

telnetd

Response:

Session Username Rem. Addr. Connected

tns0 ENGR 10.2.129.22 01/03/2003

Use telnetd kill session to terminate the current session.

@ 13:57:17

temp Temperature of PA Device

This command displays the radio’s power amplifier (PA) temperature.
Example Response:

test Self-Test of Radio Hardware

Usage:

test [<0–n>|<testname>]

: temp: 35 Degrees C (PA Temperature)

This command starts a self-test function of the radio. There are several
separate tests that can be run individually by specifying the test number
after the command.

CAUTION

POSSIBLE

EQUIPMENT

DAMAGE

82 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

CAUTION:Do not perform a transmitter PLL test while the radio is

keyed, or the radio’s receive LNA may be damaged.

NOTE: Performing a receiver or transmitter PLL test during normal

link operation will take the link down for the duration of the
test and the re-synchronization interval.

The internal self tests are listed in Table 26.

Table 26. Internal self tests

Function Evaluated Number Name

Flash Memory 0 flash
DRAM Memory 1 dram
Configuration 2 config
Battery 3 batt
Radio A- to-D Circuits 4 atod
Transmitter Phase Locked Loop 5 txpll
Receiver Phase Locked Loop 6 rxpll
Real-Time Clock 7 rtc
FPGA Logic 8 fpga
DSP 9 dsp
CODEC 10 codec

threshold Threshold of Performance Degradation

Usage:

threshold [<level>]

This command sets or displays the performance degradation
threshold(s) of the LEDR radio, at which time events are logged and
SNMP traps are generated. Setting these thresholds to zero or a negative
number will disable event logging and trap generation for those param­eters.

Example Response:

rssi—

dBm level below which an RSSI alarm is generated.

snr—Value below which a signal-to-noise level alarm is generated.
coffset—Maximum tolerable RF carrier frequency difference between

: threshold {rssi}: 0

threshold {snr}: 0
threshold {coffset}: 0
threshold {temp}: 110
threshold {15mines}: 900
threshold {15minses}: 900
threshold {24hres}: 86400
threshold {24hrses}: 86400

the local LEDR unit’s transmit frequency and the incoming RF signal
from the other LEDR radio.

temp—Power amplifier temperature above which an alarm condition is

generated.

15mines—Number of errored seconds within the last 15 minutes.

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 83

15minses—Number of severely errored seconds within the last 15 min-

utes.

24hres—Number of errored seconds within the last 24 hours.
24hrses—Number of severely errored seconds within the last 24 hours.

time Time of Internal Clock

Usage:

time [HH:MM[:SS]

This command displays or sets the time of the radio’s internal real-time
clock. The radio’s real time clock operates from an internal lithium bat­tery so it is running even if the radio has no DC power connected.

The real time clock is fully compliant with Year 2000 standards.

timeslot Time Slot Assignment

FT1

FE1

Select which timeslots to transmit. This command has two uses; in
Usage 1, the timeslots can be set or displayed. In Usage 2, all pending
timeslots are committed/made active.

The timeslots may be different at each end of the link. They will be
monotonically mapped; that is, Slot 1 is mapped to Slot 13, Slot 2 is
mapped to Slot 14, etc. To select timeslots 1 through 12, enter the com­mand

timeslot 1-12.

Usage 1:

timeslot [-d] [slotlist]

Usage 2: timeslot -c
Variables:

–d Disable timeslot(s)

–c Commit pending timeslots

Modifications to the timeslot list are kept pending until all available
slots have been assigned. The user can choose to commit slots when the
last available slot is added to the pending list, or by using the

-c option.

(See Usage 2.)
The default action is to enable given timeslots. If no arguments are

entered, the currently active timeslots and pending timeslots are dis­played.

If rearrangement of timeslots is desired, some simple rules must be fol­lowed when CAS framing is used. Refer to the chart below for this dis­cussion, where “TS” = “Timeslot”:

TS00

TS01–TS15 TS16 TS17–TS31

1M1N

84 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

If the timeslots are rearranged such that M is to the “left” of timeslot 16,
and N to the “right,” then the timeslot numbers at the other end of the
link must agree (M and N). They may be re-positioned within their part
of the E1 frame (to the left or right of TS16) but may not be moved to
the other side.

slotlist variable is a list of timeslots and can be a single slot number,

The
comma separated list of slot numbers, or a range of slot numbers (i.e.,
2-8). Timeslots can be entered in any order and are automatically con­figured. Extra slots will be ignored. Unassigned timeslots in the pending

list are signified by

MA (must assign).

NOTE: Enough slots for the full data capacity of the modem setting

must be specified or the link will not synchronize.

NOTE: FT1 timeslots are 1–24. E1 timeslots are 0–31.

NOTE: In FE1 mode timeslot 0 is always selected. When frame struc-

tures are selected that contain CAS (

fstruct 4-7) timeslot 16

must be selected.

trapfilter Trap Filtering for SNMP

Usage:

trapfilter [<critical|major|minor|inform>]

This command sets or displays which events cause SNMP traps. Fil­tering traps is done by category. Traps that are filtered are allowed to
pass through the network-management system. (See trapmgr on Page 85
and snmpcomm on Page 81 for additional information.)

trapmgr Trap Manager IP Addresses

Usage:

trapmgr [<1-5>] [<IP address>]

This command sets or displays the trap manager IP addresses. These are
the IP addresses of up to five network-management stations on which
SNMP manager software is operating, and to which notifications of
SNMP events (traps) are to be sent. The IP mask used for sending traps
is that set by the

Example Response:

ip command. (See “ip” on Page 63.)

: trapmgr: 1 = 10.2.129.22

trapmgr: 2 = 0.0.0.0
trapmgr: 3 = 0.0.0.0
trapmgr: 4 = 0.0.0.0
trapmgr: 5 = 10.2.129.1

trend Trend of RF Performance Indicators

Usage:

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 85

trend [<rssi|temp|rfout|snr|fec|ifec|time|all>] [<display time (msec)>]

This command is used to display continuously updated readings of:
RSSI, radio temperature, RF output, signal-to-noise ratio, and FEC
errors (corrected and uncorrectable). The display can be stopped by
pressing Control-C on the terminal.

If the

trend command is used by itself or with all (trend all), all associated

parameters will be reported. More than one argument can be used to dis­play several selected items in the desired order.

NOTE: This command is not available from a Telnet session.

txkey Radio Transmitter Keying Status

Usage:

txkey [on|off]

This command sets or displays the radio transmitter status. ON indicates
the radio transmitter is keyed and transmitting.

OFF indicates the trans-

mitter is not keyed.

unitid Unit Identification Number for Orderwire and NMS

Usage:

unitid [<ID>]

This command sets or displays the radio’s unit identification number.
This number is used for Orderwire signaling and by the NMS (Network
Management System). (See “USING ORDERWIRE” on Page 99.) The
factory default is the last three numbers of the unit serial number.
(1-999)

uptime Up Time

Usage:

uptime

This command displays how long the radio has been powered-on.

user User Account Information

Usage:

user [subcommand] [<argument>]

Subcommands: add <user> <pass> <perm>

del <user>
perm <user> <perm>
pass

This command provides administrator access for setting new user
accounts and permission levels.

NOTE: The password (pass) and user names are case sensitive and

may not exceed eight characters. Two quotation mark charac­ters ("") may be used as a “blank” password. If quotation
marks are used, the shift key or cap lock keys must be
depressed.

86 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

User permission (perm) may be set to: read (r), write (w), network (n) or
administrator (

a). The privileges granted by each level are as follows:

• Read (

r) is the lowest level of user access and allows radio informa-

tion to be viewed only. Changes to radio settings are not allowed.

• Write (

• Network (

w) allows most, but not all radio settings to be changed.

n) allows everything permitted by lower levels, and also

allows changes to the radio’s IP configuration.

• Administrator (

a) allows everything permitted in lower levels, and

also allows changes to be made to user accounts (add, delete, mod­ify). It is normally used by a System Administrator or other person
responsible for the radio system.

Example entry:

user add fieldserv secret w

The above example shows the command string for adding a new user
(fieldserv), with “write” permission and a password of

Example Response:

user: Command Complete

secret.

NOTE: If you are logging in for the first time since the radio was

shipped from the factory, refer to Page 26 for important login
information.

ver Version of Firmware/Hardware

Usage:

ver [frw|hdw|ext]

This command displays radio version information for firmware (frw),
hardware (

Example 1: LEDR> ver frw

hdw) and Extended Version Information (ext).

Response 1: ver: LEDR Part #06-3451A01

Example 2:

ver: 2.4.3

LEDR> ver hdw

(Version of firmware P/N above)

Response 2: ver: {Hardware version}: A
Example 3: LEDR> ver ext

Response 3:

ver: Part #06-3451A01
ver: 2.4.3
ver:
ver: Image 1
ver: Region Expected Upgrade
ver: Firmware 2.4.3
ver: DSP 1.1.0
ver: FPGA Ver1.22

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 87

ver: Scripts Ver1.44 ver: Option Ver1.56
ver:
ver: Image 2 (Active)
ver: Region Expected Upgrade
ver: Firmware 2.4.3
ver: DSP 1.1.0
ver: FPGA Ver1.22
ver: Scripts Ver1.44
ver: Option Ver1.56
ver {Active code}: compiled Aug 15 2000 08:47:46

Note: Blank lines following “Ver:” are spaces used as vertical

separations between data groups.

volume Volume of Orderwire Earpiece

Usage:

volume [<level (0–255)>]

This command sets or displays the orderwire handset volume.

Example Response:

vox Voice Operated Transmit

Usage:

vox threshold <1–100>

: volume: 100

The vox command sets or displays the level/threshold at which the order­wire microphone will key the transmitter.

NOTE: When the orderwire microphone is spoken into, the audio will

be heard by all LEDR radios in the network which currently
have a handset plugged into the front panel handset jack. Only
one station can transmit at a time; the circuit is half-duplex.

Example Response:

who Identifies who is currently logged on to the Network Management Ports

: vox: 5

Usage:

who

This command displays users currently logged in to the radio operating
system.

6.5 Disabling the Front Panel Alarm LED for Unused E1 Option Ports

To disable the ALARM LED on the front panel for a particular E1 port,
use the commands found in Table 27 below according to the E1 port
number. When alarm events are pending, the alarm condition for the
unused E1 ports remains until a valid input signal (as defined by G.703)
is applied.

88 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

You must log into the LEDR radio as a user with “Administrator” priv­ileges to execute these commands. If you are using a terminal program
connected to the radio, send one command sequence at a time to the
radio with a 5 ms delay between each line.

Table 27. Commands to Disable E1 Port Alarms

Disable the LED for IO1 Disable the LED for IO2
Evmap led 74 none

Evmap led 75 none
Evmap led 76 none
Evmap led 77 none
Evmap led 78 none
Evmap led 79 none
Evmap led 80 none
Evmap led 81 none
Evmap led 82 none
Evmap led 83 none
Evmap led 84 none
Evmap led 85 none
Evmap led 86 none

Disable the LED for IO3 Disable the LED for IO4
Evmap led 100 none

Evmap led 101 none
Evmap led 102 none
Evmap led 103 none
Evmap led 104 none
Evmap led 105 none
Evmap led 106 none
Evmap led 107 none
Evmap led 108 none
Evmap led 109 none
Evmap led 110 none
Evmap led 111 none
Evmap led 112 none

Evmap led 87 none
Evmap led 88 none
Evmap led 89 none
Evmap led 90 none
Evmap led 91 none
Evmap led 92 none
Evmap led 93 none
Evmap led 94 none
Evmap led 95 none
Evmap led 96 none
Evmap led 97 none
Evmap led 98 none
Evmap led 99 none

Evmap led 113 none
Evmap led 114 none
Evmap led 115 none
Evmap led 116 none
Evmap led 117 none
Evmap led 118 none
Evmap led 119 none
Evmap led 120 none
Evmap led 121 none
Evmap led 122 none
Evmap led 123 none
Evmap led 124 none
Evmap led 125 none

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 89

To restore the factory default settings to all of the E1 ports, issue the
commands shown in Table 28.

Table 28. Restore Factory Defaults to Alarm Ports

Evmap led 74 ioalarm
Evmap led 75 ioalarm
Evmap led 76 ioalarm
Evmap led 77 ioalarm
Evmap led 78 ioalarm
Evmap led 79 ioalarm
Evmap led 80 ioalarm
Evmap led 81 ioalarm
Evmap led 82 ioalarm
Evmap led 83 ioalarm
Evmap led 84 ioalarm
Evmap led 85 ioalarm
Evmap led 86 ioalarm
Evmap led 87 ioalarm
Evmap led 88 ioalarm
Evmap led 89 ioalarm
Evmap led 90 ioalarm
Evmap led 91 ioalarm
Evmap led 92 ioalarm
Evmap led 93 ioalarm
Evmap led 94 ioalarm
Evmap led 95 ioalarm
Evmap led 96 ioalarm
Evmap led 97 ioalarm
Evmap led 98 ioalarm
Evmap led 99 ioalarm

Evmap led 100 ioalarm
Evmap led 101 ioalarm
Evmap led 102 ioalarm
Evmap led 103 ioalarm
Evmap led 104 ioalarm
Evmap led 105 ioalarm
Evmap led 106 ioalarm
Evmap led 107 ioalarm
Evmap led 108 ioalarm
Evmap led 109 ioalarm
Evmap led 110 ioalarm
Evmap led 111 ioalarm
Evmap led 112 ioalarm
Evmap led 113 ioalarm
Evmap led 114 ioalarm
Evmap led 115 ioalarm
Evmap led 116 ioalarm
Evmap led 117 ioalarm
Evmap led 118 ioalarm
Evmap led 119 ioalarm
Evmap led 120 ioalarm
Evmap led 121 ioalarm
Evmap led 122 ioalarm
Evmap led 123 ioalarm
Evmap led 124 ioalarm
Evmap led 125 ioalarm

7.0 STANDARDIZING RADIO

CONFIGURATIONS

7.1 Introduction

Setting up and configuring a network of point-to-point systems can be a
frustrating task. To make the task easier and more predictable, the
parameters of one LEDR radio can be used as a template for other radios
in your system. You need only address the parameters that are site or
unit-specific, such as an IP addresses.

The

config command allows the user to upload/download the radio’s

configuration data from/to a PC. There are two classifications of config­uration data—radio-specific data and standard data.

90 LEDR Series I/O Guide MDS 05-3627A01, Rev. D

Radio-Specific data is:

• Frequencies

• Target Power

• Thresholds

• Calibration Data

• IP Address

• IP Routing Table

• Network Settings

Standard radio data are the configuration parameters that are common in
all LEDR radios.

Both types of data can be uploaded and downloaded between the radio
and a PC. It is up to the user to decide whether to download both types
or just the standard (core) data. Once the data is on a PC, the file can be
edited off-line, for example, the configuration data, if desired. The cus­tomized configuration file can then be downloaded to other LEDR
radios in your system from your PC.

7.2 Setup by TFTP

To use this function the user will need:

• A PC with a TFTP server running.

• The IP address of the PC running the TFTP server.

Finding IP Addresses

T o determine the IP address of a W indows NT/2000/XP computer , select

Run from the Start menu, and enter cmd. At the cmd prompt, type ipconfig.

(For W indo ws 95/98 platforms, select

winipcfg
ip command.

.) The IP address of the radio can be determined using the radio’ s

Run from the Start menu and enter

Downloading Procedure

To download the configuration data from the LEDR radio to a file

filename.txt) on the user’s PC, enter the following command:

(

LEDR> config send [filename.txt] [1.2.3.4 <IP Address>]

The file, filename.txt, will be written to in the default path set in the TFTP
server. The numeric string, “

1.2.3.4”, is the IP address of the PC destined

to receive the file.

Uploading Procedure

To upload into a LEDR radio only the standard configuration data from
a file on the PC (filename.txt) to the radio enter the following command:

LEDR> config get [filename.txt] [1.2.3.4 <IP Address>]

MDS 05-3627A01, Rev. D LEDR Series I/O Guide 91

To download both the standard and radio-specific configuration data
from a file on the PC

(filename.txt) to the radio enter the following com-

mand:

LEDR> config getall [filename.txt] [1.2.3.4 <IP Address>]

Ideally, the process of updating a system would go like this:

1. Upload the current configuration data from each radio to a specific

file on your PC.

At radio 1

CONSOLE Port enter: config send radio_1.txt 1.2.3.4

At radio 2 CONSOLE Port enter: config send radio_2.txt 1.2.3.4 (etc.)

2. Upgrade the software on each radio.

3. Boot from the new software.

4. Download the saved configuration data from Step 1 back into each

radio using the

getall subcommand so that you will get both the stan-

dard and radio-specific parameters.

At radio 1

CONSOLE Port enter: config getall radio_1.txt 1.2.3.4

At radio 2 CONSOLE Port enter: config getall radio_2.txt 1.2.3.4 (etc.)

7.3 Setup Through the DB-9 CONSOLE Port

You have the option of sending the configuration data to the CONSOLE
Port instead of sending it to a file on a PC. Then the terminal program
can be set to log the data as it is created by the radio. The advantage of
this option is that you do not need to use the TFTP server, routing, etc.
on the PC.

During the upload, the LEDR software will prompt you to begin/end
recording at the terminal program. You will also be prompted on how to
end a download.

When the

config get downloading option is chosen (standard data only),

the software will filter out all the radio-specific parameters as they come
through.

To upload the data to the

LEDR> config send console

CONSOLE Port:

To download only the standard data via the CONSOLE Port:

LEDR> config get console

To download standard and radio-specific data: LEDR> config getall console

92 LEDR Series I/O Guide MDS 05-3627A01, Rev. D