This Installation and Operation Guide and all software described herein
are protected by
copyright: 2000 Adaptive Broadband Corporation,
Inc. All rights reserved.
Adaptive Broadband Corporation reserves its right to correct any errors
and omissions.
Operational Safety Notice
RF Exposure
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guideiii
The radio equipment described in this guide emits radio frequency
energy. Although the power level is low, the concentrated energy from
a directional antenna may pose a health hazard. Do not allow people to
come in close proximity to the front of the antenna when the transmitter
is operating.
This manual is intended to guide a professional installer to install,
operate and perform basic system maintenance on the described radio.
Distress Beacon Warning
The 406 to 406.1 MHz band is reserved for use by distress beacons.
Since the LEDR 400S radio is capable of transmitting in this band, take
precautions to prevent the radio from operating between 406 and 406.1
MHz.
Notice
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 Service Team using the information at the back of this
guide. Updated documentation may also be available on our web site at
www.microwavedata.com.
ivLEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
1.0INTRODUCTION
This manual is intended to help an experienced technician install, configure, and operate a LEDR 400S, 900S or 1400S digital radio. It begins
with an overall description of radio features and is followed by the steps
required to mount a LEDR radio and place it into normal operation.
After installation, we suggest keeping this guide near the radio for future
reference.
1.1Product Description
The LEDR radio (Figure 1) is a full duplex, point-to-point digital unit
operating in the 330-512 MHz frequency band (model 400S), 800-960
(model 900S) or 1350–1535 MHz frequency band (model 1400S) with
bandwidths ranging from 25 kHz to 200 kHz, depending on the radio
model and installed options. The LEDR radio is designed to connect to
industry-standard EIA-530 data interface equipment.
With the addition of a fractional T1 card option, the radio can be connected to industry-standard G.703 T1 data interface equipment. See
page 67 for a complete description of the fractional T1 option.
The radio is also available as a protected “1+1” version (Figure 2) consisting of two identical LEDR radios and a Protected Switch Chassis.
The protected version is designed to perform automatic switchover to a
second radio in the event of a failure in the primary unit. See page 64 for
detailed information on the protected version.
LEDR Features
• 64, 128, 256, 384, 512 and 768 kbps data rates
• n x 64 kbps data rates for units with an FT1 Option Board
• Network Management via SNMP version 1
• Protected operation (1+1) compatible
• 1.0 watt transmit power
• Rack space efficient (1RU) size
• Rugged, reliable design
• Voice Orderwire (DTMF compliant)
• Data service channel
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide1
Invisible place holder
Figure 1. The LEDR Digital Radio (Non-Protected Version)
Invisible place holder
Figure 2. LEDR Digital Radio (Protected Version)
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
2LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
MODEL NUMBER
CODES ARE SUBJECT
TO CHANGE.
1.2Model Number Codes
The radio model number is printed on the serial number tag, which is
affixed to the chassis. Figure 3, Figure 4 and Figure 5 show the significance of the model number string on the various LEDR “S” models.
Contact the factory for specific information on optional configurations.
Installation of the LEDR transceiver is not difficult, but it does require
some planning to ensure optimal efficiency and reliability. This section
provides tips for selecting an appropriate site, choosing antennas and
feedlines, and minimizing the chance of interference. This material
should be reviewed before beginning equipment installation.
2.1General Requirements
There are four main requirements for installing the 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.
Invisible place holder
DATA INTERFACE
TO DC
POWER SOURCE
(24 or 48 Vdc as appropriate)
Figure 6. Typical Station Arrangement
4LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
GRID DISH
ANTENNA
LOW LOSS
COAXIAL CABLE
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. This is especially important for the LEDR 1400S,
which operates in the 1400 MHz microwave frequency band.
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.
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. See RF Propagation Planning on page 87 for more
information. Computer software is also available for this purpose that
can greatly simplify the steps involved in planning a path.
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide5
Adaptive Broadband/MDS 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.
C/I Curves
The risk of interference can be further reduced through prudent system
design and configuration. Allow adequate separation between frequencies and radio systems.
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 whitepaper on the subject is available on request. Ask for Publication No. 05-3638A01.
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.
6LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
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.
2.2Antenna 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.
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.
Invisible place holder
Figure 7. Typical Grid Dish Antenna
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide7
Table 1, Table 2 and Table 3 list some common grid dish antenna sizes
and their approximate gains.
Table 1. Dish antenna size vs. gain at 400 MHz
Antenna Size
Meters (feet)
1.2 meters
(4 feet)
2.0 meters
(6 feet)
3.0 meters
(10 feet)
4.0 meters
(12 feet)
Approximate
Gain (dBi)
13.1
16.3
19.6
22.2
Table 2. Dish antenna size vs. gain at 900 MHz
Antenna Size
Meters (feet)
1.2 meters
(4 feet)
2.0 meters
(6 feet)
3.0 meters
(10 feet)
4.0 meters
(12 feet)
Approximate
Gain (dBi)
18.4
22
26.4
28
Table 3. Dish antenna size vs. gain at 1400 MHz
Antenna Size
Meters (feet)
1.2 meters
(4 feet)
2.0 meters
(6 feet)
3.0 meters
(10 feet)
4.0 meters
(12 feet)
Approximate
Gain (dBi)
23.7
26.1
30.6
32.1
Adaptive Broadband Corporation/MDS can also furnish antennas for
use with the transceiver. Consult your sales representative for details.
Feedlines
For maximum performance, a good quality feedline must be used to
connect the 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.
8LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
For longer cable runs, or for longer-range communication paths, we recommend using a low-loss cable suited for 1400 MHz, such as Andrew
Heliax
®
. Whichever type of cable is used, it should be kept as short as
possible to minimize signal loss.
Table 4, Table 5 and Table 6 list several types of acceptable feedlines
and the associated losses according to operating frequency.
Table 4. Feedline Loss Table (450 MHz)
Cable Type
RG-8A/U0.51 dB2.53 dB5.07 dB25.35 dB
1/2 in. HELIAX0.12 dB0.76 dB1.51 dB7.55 dB
7/8 in. HELIAX0.08 dB0.42 dB0.83 dB4.15 dB
1-1/4 in. HELIAX0.06 dB0.31 dB0.62 dB3.10 dB
1-5/8 in. HELIAX0.05 dB0.26 dB0.52 dB2.60 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/U0.85 dB4.27 dB8.54 dB42.70 dB
1/2 in. HELIAX0.23 dB1.15 dB2.29 dB11.45 dB
7/8 in. HELIAX0.13 dB0.64 dB1.28 dB6.40 dB
1-1/4 in. HELIAX0.10 dB0.48 dB0.95 dB4.75 dB
1-5/8 in. HELIAX0.08 dB0.40 dB0.80 dB4.00 dB
3.05 Meters
(10 Feet)
15.24 Meters
(50 Feet)
30.48 Meters
(100 Feet)
152.4 Meters
(500 Feet)
Table 6 lists several types of acceptable feedlines and the associated
losses at 1400 MHz.
Table 6. Feedline Loss Table (1400 MHz)
Cable Type
RG-2133.0 dB6.03 dB12.05 dB24.1 dB
1/2 in. HELIAX0.73 dB1.47 dB2.93 dB5.9 dB
7/8 in. HELIAX0.42 dB0.83 dB1.66 dB3.32 dB
1-5/8 in. HELIAX0.26 dB0.26 dB1.05 dB2.1 dB
8 Meters
(26 Feet)
15 Meters
(49 Feet)
30 Meters
(98 Feet)
61 Meters
(200 Feet)
2.3Radio 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.
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide9
The dimensions of the LEDR radio are:
• 305 mm (12 in) deep
• 426 mm (16.75 in) wide—excluding rack brackets
• 45 mm (1.75 in) high—1RU
Attaching the Rack Brackets
The radio is normally shipped with the rack brackets uninstalled. To
attach them, select the desired mounting position on the sides of the
chassis. (The brackets may be mounted flush with the front panel, or
near the middle of the chassis.)
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.
2.4Radio Rear Panel Connectors
The rear panel of the standard LEDR “S” Series radio is shown in
Figure 8. Figure 9 shows the rear panel of a radio equipped with an FT1
Option Board. Refer to the descriptions that follow for specific information regarding rear panel connections.
Invisible place holder
GROUND STUD
RX
RF CONNECTORS
Note: RX Connector present with external duplexer only.
Antenna/TX
External Duplexer
COOLING FAN
EXPANSION DATA
ETHERNET
SERVICE CHANNEL
DATA CONNECTOR
ALARM INPUT & OUTPUT
Figure 8. LEDR “S” Series Rear Panel (Standard)
DC POWER
Power Plug
Detail (see text)
10LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
Invisible place holder
Power Plug
Detail (see text)
GROUND STUD
RX
RF CONNECTORS
Note: RX Connector present with external duplexer only.
The ground stud on the rear panel provides a point to tie the radio’s
chassis ground to earth ground for safety purposes.
Antenna/TX
The Antenna/TX connector is a coaxial N-type 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 connector to the duplexer.
4 x G.703 DATA CONNECTORS
(Non-Protected version)
G.703/Expansion Data
EIA-530 DATA CONNECTOR
(Not Operational with FT1 board installed)
ETHERNET
Ethernet
NMS
Data Interface
SERVICE CHANNEL
EIA-530-A
ALARM INPUT & OUTPUT
Service
Channel
Alarm I/O DC Power Input
DC POWER
RX
The RX (receive) connector is a coaxial N-type connector. It is only
installed if the radio is supplied for use with an external duplexer. It carries receive signals from the duplexer to the transceiver.
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 LO.
G.703 Data Connectors (4)
—For radios with FT1 Option Bd.
These RJ-45 jacks provide connection to G.703 customer-supplied data
interface equipment. Only one of the jacks is active (user selectable in
software). For pinout information, see Figure 26 on page 86.
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 10 base-T connection with an RJ-45 modular
connector.
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide11
At a repeater site, the Ethernet connector must be connected to the other
radio with a cross-cable for the Orderwire and service channel to function properly.
For detailed pin information see, Figure 24 on page 85.
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” on page 85.
Service Channel
This is a 9-pin serial port with EIA-232-type signaling. For detailed pin
information, see “Service Channel” on page 86.
Alarm I/O
This is a 9-pin connector that has both inputs and outputs. The events
that cause alarm output signals can be configured in the radio software.
See “evmap” on page 43 for information on programing which events
trigger an alarm. See Figure 28 on page 86 for Alarm I/O pinout information.
CAUTION
POSSIBLE
EQUIPMENT
DAMAGE
Power
Before connecting primary power to the radio, verify that it matches the
power supply operating range. Improper voltages may damage the
equipment. The allowable voltage limits are shown in Table 7. The
power connector is not polarity-sensitive.
The DC power connector is a three-pin keyed connector. The power
supply used can be connected with either polarity. The center conductor
is not connected.
Table 7. Power Supply Options
Nominal Input Voltage Allowable Voltage Range
24 Vdc19.2 to 28.8 Vdc
48 Vdc38.4 to 57.6 Vdc
Refer to the model number codes in Figure 3 to determine the radio’s
power supply range.
2.5Protected Switch Rear Panel Connectors
The rear panel of the Protected Switch Chassis is shown in Figure 10.
Refer to the following descriptions for specific information regarding
rear panel connections.
12LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
RF CONNECTORS
Figure 11 presents an inter-unit cabling diagram for protected configurations.
Invisible place holder
PROTECTED DATA
A
B
TxBAntennaTxARxBRxA
E1 DATA
ETHERNET
12
34
530 (A&B)
530 (A&B)
Figure 10. Protected Switch Chassis—Rear Panel
EIA-530-A
SERVICE CHANNEL
EIA-530-AService ChannelEthernetE1Protected
RxA
The RxA (receive, radio A) connector is a coaxial N-type connector. It
connects to the RX port on the rear panel of Radio A via a short coaxial
cable.
RxB
Same as RxA, but for Radio B.
Antenna
The Antenna connector is a coaxial N-type connector. It serves as the
connection point for the station antenna.
TxA
The TxA (transmit, radio A) connector is a coaxial N-type connector. It
connects to the TX port on the rear panel of Radio A via a short coaxial
cable.
TxB
Same as TxA, but for Radio B.
Protected Data
This pair of connectors accepts G.703 data signals from each of the
LEDR radios. The top connector is for Radio A, and the bottom connector is for Radio B. For pinout information, see Figure 26 on page 86.
E1
These connectors are not operational on “S” Series (Subrate) radios.
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide13
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 10 base-T connection with an RJ-45 modular
connector. For detailed pin information, Figure 24 on page 85.
530 (A&B)
This pair of DB-25 connectors accepts EIA-530 signals from each of the
LEDR radios. The top connector is for Radio A, and the bottom connector is for Radio B. For pinout information, see Figure 26 on page 86.
EIA-530-A
This DB-25 connector provides a connection point for customer-supplied EIA-530 data equipment.
Service Channel
In a protected configuration, this DB-9 connector becomes the Service
Channel connection for both LEDR radios. (The Service Channel connectors on the radios become non-functional.) For detailed pin information, see “Service Channel” on page 86.
2.6Inter-Unit Cabling for Protected Stations
The required cabling between the two radios and the Protected Switch
chassis is shown in Figure 11.
14LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
COAXIAL CABLES (4)
P/N 19-1323A02
Invisible place holder
NOT USED IN
PROTECTED CONFIG.
RADIO A
G.703/Expansion Data
RX
External
STATION
ANTENNA
TO
TX
SCSI CABLE
P/N 03-3837A01
FT1-EQUIPPED RADIOS
Ethernet
NMS
Data Interface
NOT USED WITH
12
EIA-530-A
RIBBON CABLE
P/N 03-3828A01
Service
Channel
DATA EQUIPMENT
Alarm I/O DC Power Input
TO EIA-530
PROTECTED SWITCH
TxBAntennaTxARxBRxA
SCSI CABLE
P/N 03-3837A01
G.703/Expansion Data
RX
External
TX
34
TO ETHERNET HUB
RIBBON CABLE
P/N 03-3828A01
Ethernet
NMS
Data Interface
530 (A&B)
EIA-530-A
PROTECTED CONFIG.
NOT USED IN
Service
Channel
EIA-530-AService ChannelEthernetE1Protected
SERVICE CHANNEL
(SERVES BOTH RADIOS)
Alarm I/O DC Power Input
RADIO B
Figure 11. Inter-unit Cabling—Protected Version
3.0OPERATION
The LEDR radio is designed for continuous, unattended operation.
Under normal conditions, the only time operator intervention is required
is to power the unit up or down, or to change an operating parameter.
This section explains the use of the radio’s controls and indicators and
provides steps for initial startup of the equipment.
3.1Initial Startup
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.
Operation of the radio can be started by simply connecting primary
power to the unit. After a short self-test, a “default screen” similar to the
following appears on the radio’s LCD display:
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 30 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.
Initial Login—
Required to change radio settings
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:
Password:
Keypad MethodTo log in from the front panel using the temporary credentials, follow
SUPER
SUPER
these steps:
1. Go to the Login screen and press the front panel key. The
Username screen appears with
ENTER
2. Press the
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 keypad, see “Communicating with the Radio” on page 18.)
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.
The user may now access any of the screens shown in Figure 14 with
Administrator level privileges (the highest allowable user level).
Console MethodTo login using a terminal connected to the front panel console port,
follow the steps below. (For more information on connecting a terminal,
see “Console Port” on page 35.)
1. Connect a terminal to the radio’s front panel console port and
press . The
2. Enter
16LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
ENTER
login SUPER. The Password > prompt will appear.
ADAP> prompt will appear.
3. Enter the password SUPER. The following response appears: login:
SUPER logged in.
The user may now access any of the console commands listed in
Table 12 on page 36 with Administrator level privileges (the highest
allowable user level).
Changing the
SUPER Password
(Recommended)
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
SUPER be changed as soon
as possible to maintain system security.
Follow these steps to change the factory-programmed password:
1. Login as
SUPER using the Console Method described above.
(Passwords cannot be changed using the front panel keypad.)
2. Enter the command
passwd. At the next prompt, enter a new pass-
word (eight characters maximum).
3. Re-enter your new password (for verification purposes). If the entry
is correct, the radio responds with
user: Command Complete.
You may now set up additional accounts, set permission levels, or delete
accounts as desired using the
user command. See page 58 for complete
description of this command.
NOTE: It is recommended that users log out when finished using the
keypad 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 keypad or terminal
activity for 10 minutes, the radio automatically logs out and
reverts to read-only status.
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide17
3.2Communicating with the Radio
There are four different methods available to set radio parameters and
query the radio.
• Front Panel—The front panel is intended to serve as a conve-
nient user interface for local radio management. Most, but not
all, parameters and functions are accessible from the front
panel.
• SNMP Network Management System—The SNMP agent
interface is optimized to fulfill the fault configuration, performance and user access requirements of the LEDR radio system.
A separate guide, P/N 05-3532A01 explains SNMP in more
detail.
• Telnet—A standard network application protocol which pro-
vides a console-type interface to configure and query most radio
parameters.
• EMS (Element Management System)—The EMS 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
EMS may be used on the local radio (
remote radio (
rlogin command).
login command) or on the
STATUS LEDS
Front Panel Controls
Figure 12 shows the LEDR radio’s front panel controls and indicators.
The front panel includes LEDs, an LCD display screen and a menu navigation keypad.
MENU NAVIGATION BUTTONS
LCD DISPLAY
Figure 12. Front Panel Interface
ALARM STATUS LEDS
18LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
LEDsThe front panel LEDs indicate the following conditions when lit:
POWER—Main Power is applied to radio.
ACTIVE—This is the Primary unit in a redundant configuration.
ALARM—A general alarm condition is present
RX ALARM—The modem is not locked to a receive signal
TX ALARM—There is a problem with the transmitter
I/O ALARM—There is a payload data interface error
LCD Display/KeypadThe LCD display provides a 2 line by 16 character readout of radio
status and parameter settings. It is used with the menu navigation
keypad on the right side of the front panel to control the radio’s operation and access diagnostic information.
Use of the keypad (Figure 13) is simple, and allows many basic operating tasks to be performed without connecting an external terminal or
using additional software.
Invisible place holder
Figure 13. Menu Navigation Keypad
The keypad buttons can be used for two functions; Navigation, and
Editing. The functions of the keys are automatically selected according
to the screen that is being viewed by the user.
•Navigation Mode—This is the default mode. The left and right
keys () navigate through the available top level screens (see
menu tree, Figure 14). The
ENTER
key allows entry into a screen,
exposing another level of menus or entering edit mode for a radio
parameter. The
ENTER
key always exits the current screen, causing
the program to “pop out” one level.
•Edit Mode—In editable screens, pressing the key puts the
ENTER
screen in Edit mode. The technique for applying new data depends
on the particular edit mode used by that screen. LEDR screens have
four edit sub-modes; List, Character edit, Text Entry, and Horizontal Bar.
MDS 05-3627A01, Rev. ALEDR “S” Series I/O Guide19
In List mode, the left and right keys scroll through a list of
ENTER
ENTER
ENTER
ENTER
choices. Pressing when the desired choice is selected
attempts to apply the changes. Pressing
drops out of the
edit mode without saving changes.
The Character Editmode consists a cursor move mode and a
character scroll mode. Upon entering the Character Edit mode,
the left and right keys move the cursor in the corresponding
direction. When the cursor is below the character to change,
pressing
ENTER
again puts the screen in character scroll mode in
which the left and right keys scroll through the available characters. Pressing
ENTER
saves the new character and reverts to cursor
move mode. To save all changes made in cursor move mode,
place the cursor under the special “Enter” character and press
ENTER
. Pressing in character scroll mode reverts to cursor
move mode. Pressing in cursor move mode cancels char-
ENTER
acter edit mode without saving any changes.
The Text Entrymode is a slight modification to the Character
Edit mode above. Upon entering Text Entry mode the cursor is
in the leftmost position and the keys scroll through the
available characters. Pressing saves the current character
ENTER
and moves the cursor to the next position to the right. When the
text is correctly entered, moving the cursor to the special “Enter”
character and pressing attempts to save the new text.
Pressing in cursor move mode cancels Text Entry mode
ENTER
ENTER
without saving any changes.
The Horizontal Bar mode is used in some menu screens. It
allows adjustment of the LCD display for the best contrast using
the keys (see Front Panel menu, page 33). The right key
corresponds to upward viewing angle; the left key corresponds
to downward viewing angle. Pressing
saves the adjusted
value as the default setting.
It works in a similar manner for the Orderwire menu (see page
33) to adjust the Volume and VOX threshold.
Front Panel Menu Tree
The LEDR radio contains several top level menus (see Table 8). These
serve as entry points to a variety of sub menus that can be used to view
or adjust operating parameters and diagnose the radio link.
Table 8. Top Level Menu Screens
1) Login/Logout9) Modem
2) Network10) Console
3) General11) Diagnostics
4) RF Configuration12) Orderwire
20LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
Table 8. Top Level Menu Screens (Continued)
5) IO Configuration13) Front Panel
6) Line Configuration14) Redundant
7) Performance15) Remote Status
8) G.821
Figure 14 on the following page shows a pictorial view of the front panel
menu tree. Detailed explanations of the screens are given in Section 3.3,
Front Panel LCD Menu Descriptions (beginning on page 24).
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
Login
The login menus allow 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.
” on page 34).
For the console
command-line equivalent,
see “login” on page 48
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 are allowed.
For the console
command-line equivalent,
see “passwd” on page 51
Network
This menu allows changes to the radio’s IP address. The IP address is
used for SNMP connectivity. The IP address also allows new radio software to be downloaded over-the-air.
00
For the console
command-line equivalent,
see “ip” on page 46
This menu allows the subnet mask to be viewed and changed. The
subnet mask specifies which bits of the host IP address can be re-used
for increased network addressing efficiency.
00
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.
24LEDR “S” Series I/O GuideMDS 05-3627A01, Rev. A
Loading...
+ 74 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.