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PRISM 3021

NTU/DSU

TRANSPORT

34-00262

January 1998

©1998 TxPORT. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form by any means without the written permission of TxPORT.

Reorder # 34-00262

Edition, January 1998

2 TxPORT shall not be liable for e rrors co ntained here in or for inci dental or co nsequent ial da mages in conne c-

tion with the furnishing, performance, or use of this material. TxPORT reserves the right to revise this publication from tim e to time and make changes in content without obligation to notify any person of such revision changes.

Contents of this publication may be preliminary and/or may be changed at any time without notice and shall not be regarded as a warranty.

Documentation Disclaimer

TxPORT makes no representation or warranties of any kind whatsoever with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.

Table of Contents

1. General

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Network Interface . . . . . . . . . . . . . . . . . . . . . . .1-2

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

FCC Requirements . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Canadian Emissions Requirements . . . . . . . . . . . . . .1-3

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Ordering Numbers . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

TxPORT Customer Service . . . . . . . . . . . . . . . . . . .1-4

Technical Support . . . . . . . . . . . . . . . . . . . . . . .1-4

Returns/RMA . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

2. Installation

Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . .2-1

Supplied Materials . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Unit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Configuration Switch S1 . . . . . . . . . . . . . . . . .2-2

Network Framing . . . . . . . . . . . . . . . . . . . .2-2

CRC4 Mode . . . . . . . . . . . . . . . . . . . . . . . .2-2

Network Line Code . . . . . . . . . . . . . . . . . . .2-2

Timing Source . . . . . . . . . . . . . . . . . . . . . . .2-2

Keep Alive Framed and Unframed Ones . .2-2

Data Normal or Inverted . . . . . . . . . . . . . . .2-3

Program Flash . . . . . . . . . . . . . . . . . . . . . . .2-3

Address Switch S2 . . . . . . . . . . . . . . . . . . . . . . .2-3

Configuration Switch S3 . . . . . . . . . . . . . . . . .2-3

NMS Port Rate . . . . . . . . . . . . . . . . . . . . . .2-3

SUPV Port Rate . . . . . . . . . . . . . . . . . . . . .2-3

Boot Mode . . . . . . . . . . . . . . . . . . . . . . . . .2-4

DTE Rate Multiplier . . . . . . . . . . . . . . . . . .2-4

Channel Assignment . . . . . . . . . . . . . . . . . .2-4

National Bit Selection SW1 . . . . . . . . . . . . . . . .2-4

Configuration Switch S4 . . . . . . . . . . . . . .2-5

DTE Rate . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

E1 Network Impedance . . . . . . . . . . . . . . .2-5

Station Clock Signal Levels . . . . . . . . . . . .2-5

E1-DTE Option Switch S1 . . . . . . . . . . . . . . . .2-6

CRC4 Mode . . . . . . . . . . . . . . . . . . . . . . . .2-6

E1-DTE Line Code . . . . . . . . . . . . . . . . . . 2-6

Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

E1-DTE Termination . . . . . . . . . . . . . . . . . 2-6

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Supervisory (SUPV) Port . . . . . . . . . . . . . . . . . 2-6

Standalone Connections . . . . . . . . . . . . . . . . . . 2-7

DTE PORT . . . . . . . . . . . . . . . . . . . . . . . . 2-7

1051 Chassis Connections . . . . . . . . . . . . . . . . 2-7

DTE Interfaces . . . . . . . . . . . . . . . . . . . . . . 2-7

NMS Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

NMS IN and NMS OUT . . . . . . . . . . . . . . 2-9

NMS Split Cable . . . . . . . . . . . . . . . . . . . . 2-9

NMS IN . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

NMS OUT . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Chassis Operation . . . . . . . . . . . . . . . . . . . 2-9

Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Power Connection . . . . . . . . . . . . . . . . . . . . . . . 2-9

External Clock Connection . . . . . . . . . . . . . . . 2-10

3. Operation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Front Panel Controls and Indicators . . . . . . . . . . 3-1

General St atus Indicators . . . . . . . . . . . . . . . . 3-1

DTE Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Test Controls and Indicators/Terminal Access . 3-1

Front Panel Testing . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Test Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Supervisory Port . . . . . . . . . . . . . . . . . . . . . . . 3-2

Upgrading Software . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

4. Terminal Operation

Terminal Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Screen Components . . . . . . . . . . . . . . . . . . . . . 4-1

Device Type and Revision . . . . . . . . . . . . . 4-1

Date and Time . . . . . . . . . . . . . . . . . . . . . . 4-1

Element ID . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Menu Title . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Near and Far Element: . . . . . . . . . . . . . . . . 4-1

Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Local and Remote Screen Indicator . . . . . 4-2

Cursor Controls . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Field Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Software Configuration . . . . . . . . . . . . . . . . . . . . . . 4-3

Interface Start-up . . . . . . . . . . . . . . . . . . . . . . . 4-3

Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Alarms Screen . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

NET Alarms . . . . . . . . . . . . . . . . . . . . . . . 4-4

DTE Alarms . . . . . . . . . . . . . . . . . . . . . . . 4-4

iii

alarm status . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Reset Alarm Registers . . . . . . . . . . . . . . . .4-4

Performance Screens . . . . . . . . . . . . . . . . . . . . .4-5

Element . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Error Events . . . . . . . . . . . . . . . . . . . . . . . .4-5

FEBE Events . . . . . . . . . . . . . . . . . . . . . . . .4-6

Reset Performance Registers . . . . . . . . . . .4-6

Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Completed Days . . . . . . . . . . . . . . . . . . . . .4-6

Completed Intervals . . . . . . . . . . . . . . . . . .4-6

24 Hr.% Error Free . . . . . . . . . . . . . . . . . . .4-6

30 Day % Error Free . . . . . . . . . . . . . . . . . .4-6

Performance Data . . . . . . . . . . . . . . . . . . . .4-6

E1 24 Hour and E1 30 Day

Error Parameters . . . . . . . . . . . . . . . . . . . . .4-6

Standard 24 Hour and Standard 30 Day

Error Parameters . . . . . . . . . . . . . . . . . . . . .4-6

Enhanced 24 Hour and Enhanced 30 Day

Error Parameters . . . . . . . . . . . . . . . . . . . . .4-7

Element Maintenance Screen . . . . . . . . . . . . . . .4-8

Clear Tests . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Clear Alarms . . . . . . . . . . . . . . . . . . . . . . . .4-8

E1 Loop . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

E1 Unloop . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Port Loop . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Port Unloop . . . . . . . . . . . . . . . . . . . . . . . .4-9

BERT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Test Length . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Pattern Sync . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Elapsed Time . . . . . . . . . . . . . . . . . . . . . . . 4-9

Bit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Errored Seconds . . . . . . . . . . . . . . . . . . . . 4-9

% EFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Start Test . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Reset Errors . . . . . . . . . . . . . . . . . . . . . . . . 4-9

E1-NET and E1-DTE Status . . . . . . . . . 4-10

Near Loops . . . . . . . . . . . . . . . . . . . . . . . 4-10

Far Loops . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Configuration Screen . . . . . . . . . . . . . . . . . . . 4-12

Line Parameters . . . . . . . . . . . . . . . . . . . 4-13

Alarm Parameters . . . . . . . . . . . . . . . . . . 4-15

Port Configuration . . . . . . . . . . . . . . . . . . 4-16

Management Ports . . . . . . . . . . . . . . . . . . 4-18

Summary . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Set Time . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Set Date . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Date Format . . . . . . . . . . . . . . . . . . . . . . . 4-20

New Password . . . . . . . . . . . . . . . . . . . . . 4-20

Maintenance Reset . . . . . . . . . . . . . . . . . 4-21

Factory Reset . . . . . . . . . . . . . . . . . . . . . . 4-21

A. Flash PROM Download Procedure

Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . A-1

PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

1. General

LOCFAR

D T E

RD RTS DTR

STATUS

E1 CSU/DSU

N E T

BV/CR/FE

LOS/OOF

AIS

REM ALM

LOOP

TST

ERR

Figure 1-1 3021 Front Panel

3021

T S T

Introduction

The TxPORT PRISM 3021 is a modular, single port, fractional E1 NTU/DSU. The PRISM 3021 provides all the standard, high-quality features found in all PRISM products. TxPORT has a complete E1 solution with the combination of the 3021 E1 NTU/DSU, 2048 PMU/NTU, and 8100A Site Controller.

The PRISM 3021 can be installed in minutes. Card-edge switches allow for all major configuration items to be quickly selected. Full configuration and mainten ance selections are available through the built-in VT100 user interface. Configuration can also be done using Telnet or SNMP Sets and Gets if the 8100A Site Controller is the manager.

The PRISM 3021 can be ordered with ITU V.35 or EIA-530 interfaces as well as a E1-DTE option card. Channel assignments can be customized to a variety of configurations.

Trouble isolation is simple with the PRISM 3021. Loops can be generated for the near-end unit as well as for the far-end unit. Multiple loops allow segmentation of the network and isolating the problem quickly. Loops include line loopbacks, payload loopbacks, digital loopbacks, and channelized loopbacks.

A full complement of Bit Error Rate Testing (BERT) patterns is available on the PRISM 3021. The different stress patterns provide a greater diagnostic capability. BERT patterns are initiated from either the front panel switch or through the user interface. Testing can also be initiated from the 8100A Site Controller.

The PRISM 3021 provides several ways to manage a network. An end-to-end data link provides remote comm unications to the distant end. Configuration and maintenance of the remote unit can be done from the central site. The 8100A Site Controller provides a single interface point to manage up to 50 units. The 8100A even provides an SNMP/ Telnet access for the PRISM 3021 and complete network management from one central LAN management station.

TRANSPORT

The chapters in this manual are arranged as follows: Introduction - Describes product specifications, FCC and

warranty information, in addition to TxPORT ordering numbers and Customer Service telephone numbers.

Installation - describes unit mounting, switch configuration, interface connections, and unit powering.

Operation - describes the front panel controls and indicators, unit testing, and control port features.

General 1-1PRISM 3021

Terminal Operation - Describes the terminal interface setup and the menu - based screens which appear during a local or remote session.

Features

• EIA-530*, V.35, or X.21* data interfaces

• Nest-mount unit fits into standard 1051 chassis

• Available as a standalone unit

• Full set of performance registers

• Full diagnostics including multiple loops and BERT patterns

• SNMP and T elnet supplied through the 8100A Site Controller

• E1-DTE option card

• Framed and multi-framed modes supported

• HDB3 and AMI line code supported

• Field upgradable Flash memory

• Built-in user interface

• Configuration switches

Specifications

Network Interface

Service Types: CEPT/E1 Line Rate: 2.048 Mbps (± 50 ppm) Framing: CAS or CCS Line Code: AMI or HDB3 Input Signal: 0 to - 22.5 dB ALBO Line Connection: 75 Ω: BNC

120 Ω: DB-15, twinax, and RJ-48

Output Signal: Per G.703 with 75-Ω or 120-Ω option Surge Protection: 1000 volts High-Speed Data

Port Compatibility: ITU V.35 female DB-25, female 34-pin

through adapter cable, ITU X.21 female DB-15; EIA-530 DB-25

Rate: Synchronous , N×56, or N×64 kbps

(N = 1 to 31) Clocking: Internal or external Data Invert: Enabled or disabled

Configuration

Configuration: Card-edge switches

Terminal interface on the supervisory

port, Telnet session using the 8100A

SNMP Management System. Soft con-

figuration is non-volatile.

Diagnostics

Performance: RFC1406 (with the 8100A) Status: Front panel LEDs for network, testing,

and DTE Network Loopbacks: Line, payload, and proprietary E1-DTE

Loopbacks: Line and proprietary DTE Loopbacks: Responds to and generates V.54 inband

loop codes and performs bidirectional

fractional-port loopback

Power

Power: - 48 VDC, 150 mA, max; 7.2 W,

(24.6 BTU, max)

Mechanical

Mounting: Wall, vertical, horizontal rack, or

TxPORT 1051 chassis Weight: 1 pound, nominal

Compliance

FCC Compliance: Part 15, Class A, Subpart B US Safety: UL 1950, Third Edition Canadian Safety: CSA: C22.2 No. 950-95 G.703: Signal Waveform G.704: Framing G.732: Multiframing G.823: Jitter G.831: Framing Requirement

Environmental

Operating Temp: 0° to 50°C(32° to 122°F) Storage Temp: -20° to 85°C(-4° to 185°F) Relative Humi dit y: 95% maximum, non-condensing

FCC Requirements

This equipment has been tested and found to comply with the limits for a Class A digital device, pursu ant to Part 15 o f FCC Rules. 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 resid ential area is likely to cause harmful interference in which case the user is required to correct the interference at his own expense.

Shielded cables must be used to ensure compliance with the Class A FCC limits.

* Not available at time of printing.

1-2 General

PRISM 3021

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

This device complie s with Part 15 o f the FCC ru les. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including interference that may cause undesired operation.

Canadian Emissions Requirements

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

On 48-VDC units only, end users should use existing 48-VDC battery sources or a CSA-certified power supply.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques (de la class A) prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.

Caution:

tions themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate.

Users should not attempt to make such connec-

Ordering Numbers

The PRISM 3021 is available with a single V.35 or EIA-530 data port. Table 1-A provides the unit ordering numbers.

Table 1-A Unit Ordering Numbers

F-3021-100- F-3021-101--

Company 1 - TxPORT

Special Option 1 - Standard Unit

Network Interface 1 - 75- ohm coax

DTE Interface 1 - V.35

DSX E1-DTE Option

Option 0 - Future Option

* Not available at time of printing.

ABCDEF ABCDEF

PRISM 3021 Nest mount PRISM 3021 Standalone

2 - 120-ohm RJ-48 3 - 120- ohm DB-15 4 - 120-ohm twinax

2 - EIA-530 * 3 - X.21*

0 - Not Installed 1 - 120-ohm E1 RJ-48 2 - 120-ohm E1 twinax 3 - 120-ohm E1 DB-15 4 - 75-ohm E1 coax

Warranty

TxPORT warrants each unit against defects in material and workmanship for a period of five years from the date the unit was shipped to the customer. If the unit malfunctions at any time during the warranty period, TxPORT will repair, or at TxPORT’s option, replace the unit free of charge.

The remedies listed herein are the users sole and exclusive remedies. TxPORT shall not be liable for any indirect, direct, incidental or consequential damages. The owner must return the unit to the factory, shipping prepaid and packaged to the best commercial standard for electronic equipment. TxPORT will pay shipping charges for delivery on return. The customer is responsible for mode and cost of shipment to TxPORT. This warranty does not apply if the unit has been damaged by accident, misuse or as a result of service or modification by other than TxPORT personnel.

General 1-3PRISM 3021

The equipment options shown in Table 1-B may be required for the installation and operation of the 3021.

Table 1-B Optional Equipment

Part Number Optional Equipment

Network and E1-DTE Cables 9-1001-004-xxx 8-pin mod to 8-pin mod (four twisted pairs) 9-1001-006-1

9-1001-006-2 Supervisory Cables and Adapter 9-1001-073-2 DB-9 female to 8-pin (PC to SUPV) 9 -1544-619-005

9 -1544-619-010 9 -1544-619-020

9-1001-015 -1 9-1001-016 -2

NMS Cable 9-1001-030-xxx dual 6-pin mod to 8-pin mod V.35 Cab les 9 -1001-001-xxx

9 -1001-311-xxx 9 -1001-312 -xxx

EIA - 530 Cables 9 -1001-511N- xxx

9 -1001-511 -xxx 9 -1001-512 -xxx

X.21 Cable* 9-1001-098-xxx DB-25 to DB-15 E1-DTE Cables and Adapters 9 -1001-106-xxx

9 -1001-105-xxx 9 -1544-638-1†

9 -1544-639-1†

xxx = length 005 = 5 feet 010 = 10 feet 020 = 20 feet * Not available at time of printing. † Order with part number 9-1001-004-xxx.

8-pin mod to 15-pin D-type adapter, male 8-pin mod to 15-pin D-adapter, female

8-pin cable, 5 feet 8-pin cable, 10 feet 8-pin cable, 20 feet

DB-25 pin/8-pin modular adapter (terminal) DB-25 pin/8-pin modular adapter (for modem)

V.35 male-to-male null modem cable V.35 male-to-m ale cable, straight thru V.35 male-to-fe male cable, straight thru

EIA-530 male-to-male null modem cable EIA -530 male-to -male cable, straight thru EIA-530 male-to-female cable, straight thru

120-Ω twinax to RJ-48 75-Ω BNC to RJ-48 75-Ω DB-15 to RJ-48 adapter, male, w/slide latch 75-Ω RJ-48 to RJ-48 adapter, female, w/slide latch

TxPORT Customer Service

TxPORT office hours are Monday through Friday from 8 a.m. to 5 p.m Central Time. For general, sales and marketing information, contact TxPORT at:

Toll Free: 888-4TxPORT Toll Free: 800-926 -0085 Local: 205-772-3770 International: 205-772-3770 e-mail: info@txport.com

Technical Support

Technical support is available 24 hours a day, seven days a week. You may contact a support representative by telephone or e-mail.

Toll Free: 1Local: 205-772-3770 International: 205-772-3770 e-mail: support@txport.com

Returns/RMA

If for any reason you need to return a TxPORT unit, you must have a Return Material Authorization (RMA) number marked on the shipping package. You may obtain an RMA number from customer service at 888 - 4TxPORT; 800 - 926 -

0085, ext. 2227; or for local or international customers 205

- 772 -3770. When calling TxPORT for an RMA, please have the follow-

ing information available.

• Model number and serial number for each unit.

• Reason for return and symptoms of problem.

• Warranty status (if known).

• Purchase orde r number to cover charges for out-of -warranty items.

• Name and phone number of person we can contact if we have questions about the unit(s).

• Mode of shipment required (second-day air is the normal mode of shipment for all returned material unless otherwise specified).

Units being returned to TxP ORT should be sent to the following address:

800-285-2755

1-4 General

TxPORT 127 Jetplex Circle Madison, Alabama 35758

PRISM 3021

2. Installation

This chapter contains information and instructions required to prepare the TxPORT PRISM 3021 for use. This chapter includes initial inspection procedures, mounting instructions, configuration guidelines , connection instructions, and powering information.

Throughout this manual, all factory default settings are shown underlined

Safety Summary

This manual contains information and warnings which must be followed by the user to ensure safe operation and to retain the equipment in a safe condition.

This WARNING sign denotes a poten-

tial hazard to the operator. It calls attention to a procedure or practice w hich, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.

Follow proper electrostatic discharge (ESD) procedures while handling the circuit boards.

Unpacking and Inspection

Upon receipt of shipment, inspect the shipping container and contents. If the contents of the shipment are incomplete or, if there is mechanical damage or defect, notify TxPORT Customer Service. If the shipping container or cushioning material is damaged, notify the carrier and TxPORT immediately and make a notation on the delivery receipt that the container was damaged (if possible, obtain the signature and name of the person making delivery). Retain the packaging material until the contents of the shipment have been checked for completeness and the instrument has been checked both mechanically and electrically.

Supplied Materials

The PRISM 3021 shipment contains the following items:

• PRISM 3021 unit

• Reference manual with configuration guide

• Adapter cables, if appropriate

The chassis can be installed in either a 19- or 23-inch rack using four screws. Connections are made from the rear panel of the chassis.

Unit Configuration

The PRISM 3021 can be hardware configured by switches or software configured by using a terminal connection to the front panel supervisory access ( SUPV) port (see SUPV Po rt Rate on page 2-3 to configure the port’s data rate and Optional Equipment on page 1 -4 for the appropriate cable and adapter). The terminal interface provides more capabilities than do the configuration switches. For terminal configuration options, refer to Software Configuration on page 4-3.

In the event of power failure, the 3021 retains its configuration in non - volatile mem ory. This feature allows the unit to automatically restore normal service following a power loss. See Utilities on page 4-20 for more information.

The 3021 stores its operating firmware in Flash memory. If a software upgrade is ever needed, TxPORT will provide the hex files, the download program, and the downloading instructions.

Hardware switches on the upper and lower sides of the circuit boards allow configuring most simple applications. These switches are described in the following paragraphs. If an ambiguous configuration is programmed, the unit overrides invalid configuration items. When power is applied to the unit, front panel indicators STATUS, TST, and BV/CR/ FE flash for several seconds.

The unit is hardware configured using four DIP switches on the upper side between the circuit boards (se e Figure 2- 2 on page 2 - 2); one r otary switch and one DIP switc h located on the lower side (see Figure 2 -5 on page 2-4); as well as jumpers located opposite the E1-DTE card (see Figure 2 -6 on page 2 -5). Switch positions are numbered as follows: position 2 of switch S3 is referred to as Switch S3-2, and so on.

Before installation, verify and record each configuration switch setting on the removable configuration guide that is included at the back of this manual.

Mounting

The TxPORT 3021 NTU/DSU is a modular unit that plugs into either a single-unit housing or into a TxPORT 1051 chassis which holds up to 12 units.

Installation 2-1PRISM 3021

Switch S4

Switch S3

Switch S2

Switch S1

Figure 2-1 Top-Edge View of the PRISM 3021

Configuration Switch S 1

Switch S1 (Figure 2-2) is used to set the configuration parameters listed in the following paragraphs.

Network

CRC4

Mode

Network

Line Code

Timing

Source

Timing

Source

Framing

Down Up

Figure 2-2 Switch S1

Factory default settings are underlined out this manual.

ETWORK FRAMING

Position S1-1 is used to select Channel Associated Signaling (CAS) network framing or Common Channel Signaling (CCS) network framing as shown in Table 2 -A.

Table 2- A Network Framing

Functions S1-1

Network Framing CAS Network Framing CCS Up

CRC4 M

ODE

Position S1-2 is used to enable o r disa ble CRC 4 as shown in Table 2-B.

Table 2-B CRC4 Mode

Functions S1-2

CRC4 enabled CRC4 disabled Up

Keep Alive Framed

and Unframed Ones

Down

Data Normal

or Inverted

7654321

through-

Program

Flash

234567

51234

ETWORK LINE CODE

234567

Position S1-3 selects High-Density Bipolar of order 3 (HDB3) line code or Alternate Mark Inversion (AMI) line code as shown in Table 2 - C. HDB3 provides clear channel capability.

Table 2-C Network Line Code

Network Line Code S1-3

Down

IMING SOURCE

HDB3 AMI Up

Positions S1-4 and S1-5 are used to selec t the source of unit clocking as shown in Table 2 -D. Deriving timing from the network is the most common timing source f or most a pplications. The unit may also be clocked from its internal oscillator; from equipment attached to the DTE; or fr om equipment attached to the E1-DTE option card.

Table 2-D Timing Source

Timing Source S1-4 S1 -5

Network Internal Down Up E1 DTE Up Down DTE or External Up Up

EEP ALIVE FRAMED AND UNFRAMED ONES

Down Down

Position S1-6 selects keep alive framed and unframed ones as shown in Table 2-E. Keep alive is generated when the unit detects LOS or OOF.

Table 2-E Keep Alive Framed and Unframed Ones

Mode S1-6

Keep Alive Unframed Ones Keep Alive Framed Ones Up

Down

2-2 Installation

PRISM 3021

7654321

Down Up

NMS Port

SUPV Port

DTE Rate

Channel

Rate

Assignment

Multiplier

Boot

Mode

Rate

SUPV Port

Rate

Boot

Mode

Figure 2-4 Switch S3

Rate

ATA NORMAL OR INVERTED

Position S1-7 is used to select if data is normal or inverted as shown in Ta ble 2-F.

Table 2-F Data Normal or Inverted

Data S1-7

Normal Inverted Up

Down

Units at both ends of the circuit must have this option set the same.

ROGRAM FLASH

Position S1-8 is used to enable or disable progr amming the Flash memory as shown in Table 2-G.

positions would be set Down. If all th e switches are Down, the address is 1.

Configuration Switch S3

Switch S3 (Figure 2-4) is used to set the configuration parameters listed in the following paragraphs.

Table 2-G Program Flash

Program Flash S1-8

Disabled Enabled Up

Down

When switch S1-8 is in the Up pos ition,

the unit goes into download mode. After downloading the unit, move S1-8 to the Down position. If this switch is left in the Up position and power is lost, the unit powers back up in the download mode.

Address Switch S2

Switch S2 sets the unit address. When using the 3021 with an 8100A Site Controller, each element must have a unique unit address. The 8100A Site Controller can address up to 50 units (with addresses from 1 to 50). If the unit is not connected to a site controller, the NMS unit address should be left at the factory default setting of 1 and all other positions are Down (see Figure 2-3).

LSB MSBBinary values

1248163264128

Down Up

00000000

where Position 1 is Up

7654321

NMS P

ORT RATE

Positions S3-1 and S3-2 select the NMS port rate as shown in Table 2 -H . This is a serial RS-232 DCE port configured for eight bits, no parity, and one stop bit. If the 3021 is being used with the 8100A, the NMS rate of all units must be set the same.

Table 2-H NMS Port Rate

S3-1 S3-2

Down Down

SUPV P

NMS Port Ra te

19200 bps 9600 bps Down Up 2400 bps Up Down 1200 bps Up Up

ORT RATE

Positions S3-3 and S3-4 select the SUPV port rate as shown in Table 2-I. This port is used to access the embedded terminal interface. This is a serial RS-232 DCE port configured for eight bits, no parity, and one stop bit.

Table 2-I SUPV Port Rate

SUPV Port Rate

38400 bps 19200 bps Down U p 9600 bps Up Down 2400 bps Up Up

S3-3 S3-4

Down Down

Figure 2-3 Switch S2

Switch S2 has eight positions used to create an 8-bit binary code for an address in the range of 1 to 50. Switch position S2- 1 is the least significant bit (LSB) and S2- 8 is the most significant bit (MSB). If a switch is down, its value is 0. If up, its value is that of the upper location. The values are additive. For example, to set a unit address to 5, position S2-

3 (binary value is 4) and position S2 - 1 (binary value is 1)

would be set Up for a unit addre ss of 5 (4 + 1). All other

Installation 2-3PRISM 3021

OOT MODE

Position S3-5 and S3-6 select the boot mode as shown in Table 2-J.

Table 2-J Boot Mode

Mode S3-5 S3-6

Switches RAM Down Up ROM Up Down Reserved for future expansion. Up Up

DTE R

ATE MULTIPLIER

Down Down

Position S3-7 is used to select the DTE rate multiplier as shown in Table 2- K . The switch is used in co njunction wit h switch S4 to determine the DTE rate.

Table 2-K DTE Rate Multiplier

DTE Rate Multiplier S3-7

64 Down

N N×56 Up

HANNEL ASSIGNMENT

Position S3-8 selects the channel assignment mode as shown in Table 2- L for network E1 DS0s that carry da ta to the high-speed port. Contiguous channel mode assigns the channels as a block beginning at channel one. For example, if the high-speed port data rate is 256 kbps (as shown in Table 2- N on page 2-5) , the unit would assign network channels 1 through 4 to the high-speed port.

Alternate channel mode assigns an idle channel following each data channel. Using the example above, data is carried on channels 1, 3, 5, and 7 while channels 2, 4, 6, and 8 are set idle (binary code 01111111). The advantage of alternate channel assignment is that E1 ones-density requirements are maintained by the idle channels rather than placing any restriction on the high-speed data.

endpoint units. Both endpoint units must have the same national bit selected to utilize the datalin k. The national bit is selected as shown in Table 2-M.

Table 2-M National Bit

National Bit S witch Position

None 0 SA4 SA5 2 SA6 3 SA7 4 SA8 5 None 6-9

Table 2-L Channel Assignment

Channel Assignment S3-8

Contiguous Alternating Up

Down

National Bit Selection SW1

SW1 is located as shown in Figure 2-5 and is used to choose a national bit to create a 4-kbps datalink be tween the

Switch SW1

Figure 2-5 B

2-4 Installation

OTTOM-EDGE VIEW OF PRISM

Switch S1

(E1-DTE Option Card)

18765432

3021

PRISM 3021

J14

J15

J16

J17

J12

J13

Front

E1-DTE

Option Card

U6 U5

3021

Figure 2-6 Jumper Placement on the 3021

120

ONFIGURATIONSWITCH

DTE R

ATE

Positions S4-1 through S4-5 select the DTE rate as shown in Table 2-N. The DTE ra te mu ltiplie rs (N ×56 and N×64) are d etermined by setting switch S3-7 (see Table 2-K on page 2-4).

Table 2-N DTE Rate

DTE

Rate

N=31 N=30

=29

=28

=27

=26

N N

=25 =24

=23

=22

=21

=20

N N

=19 =18

=17

=16

=15 840 960 Down Down Down Down Up

=14 784 896 Up Down Down Down Up

=13 728 832 Down Up Down Down Up

N N

=12 672 768 Up Up Down Down Up =11 616 704 Down Down Up Down Up

=10 560 640 Up Down Up Down Up

=9 504 576 Down Up Up Down Up

=8 448 512 Up Up Up Down Up

=7 392 448 Down Down Down Up Up

N N

=6 336 384 Up Down Down Up Up =5 280 320 Down Up Down Up Up

=4 224 256 Up Up Down Up Up

=3 168 192 Down Down Up Up Up

=2 112 128 Up Down Up Up Up

=15664DownUpUpUpUp

This selection is not valid if the Channel Assignment is set to

Alternating.

This selection is not valid for CAS mode.

N×56

(kbps)

1736 1984 Down Down Down Down Down

1680 1920 Up Down Down Down Down

1624 1856 Down Up Down Down Down

1568 1792 Up Up Down Down Down

1512 1728 Down Down Up Down Down

1456 1664 Up Down Up Down Down

1400 1600 Down Up Up Down Down

1344 1536 Up Up Up Down Down

1288 1472 Down Down Down Up Down

1232 1408 Up Down Down Up Down

1176 1344 Down Up Down Up Down

1120 1280 Up Up Down Up Down

1064 1216 Down Down Up Up Down

1008 1152 Up Down Up Up Down

952 1088 Down Up Up Up Down

896 1024 Up Up Up Up Down

N×64

(kbps)

S4-1 S4-2 S4-3 S4-4 S4-5

Jumpers

To configure E1 network impedance, remove the E1-DTE card as shown in Figure 2-6 and place the jumpers as explained in the following paragraphs.

E1 N

ETWORK IMPEDANCE

The network termination of the 3021 can be selected for either 75 or 120 ohms. Placing the jumpers for J5 and J12 in the center post and the post labeled 120 configures the unit for 120-ohm termination. Placing the jumpers for J5 and J12 in the center post and the post labeled 75 configures the unit for 75-ohm termination.

TATION CLOCK SIGNAL LEVELS

The 3021 accepts an RS-423-compatible station clock input. Contacts are provided on the rear of the 1051 chassis (12-

slot chassis) to permit connection to an external timing

Installation 2-5PRISM 3021

source (using TB1, pins 1 and 2). The station timing is con-

Figure 2-8 Setting J7 on the E1-DTE Option Card

T1 T2

75 ohm 120 ohm

E1-DTE Option Card

figured through the terminal interface. Refer to Line Parameters on page 4-13.

Contacts are provided on the rear of the stand-alone unit to permit connection to an external timing source (using pins 1 and 2). An alternate method for network connection is also provided with pins 3 through 6. Connection information is shown in Table 2-S.

E1-DTE Option Switch S1

Switch S1 (Figure 2 - 7) is located as shown on Figure 2- 5 and is used to configure the E1-DTE parameters listed in the following paragraphs.

CRC4

E1-DTE

Down Up

Mode

Spare

Line Code

Spare

Figure 2-7 Switch S1

Spare

Line

Spare

7654321

Termination

E1-DTE T

ERMINATION

Position S1-8 is used to select the E1-DTE termination as shown in Table 2-Q. This s etting must agree with the placement of the J7 shown in Figure 2-8.

Table 2-Q E1-DTE Termination

E1-DTE Termination S1-8

75 ohm 120 ohm Up

Down

CRC4 M

Position S1-1 is used to enable or dis able CRC4 for the E1DTE option as shown in Table 2-O.

E1-DTE L

Position S1-2 selects the E1-DTE line code as shown in Table 2-P.

PARES

Positions S1-3 through S1 -7 are not used an d should be left Down.

ODE

Table 2-O CRC4

CRC4 S1-1

CRC4 enabled CRC4 disabled Up

INE CODE

Down

Table 2-P E1-DTE Line Code

E1-DTE Line Code S1-2

HBD3 AMI Up

Down

Connections

Supervisory (SUPV) Port

The front panel supervisory (SUPV) port serves several functions. The unit firmware may be accessed through this port (see Terminal Interface on page 4-1) as well as the Call On Alarm feature (see Management Ports on page 4-18). This port may be accessed through either a direct connection or a dial-up connection using an AT-command-set-compatible modem. The modem should be optioned to ignore DTR, enable auto answer, inhibit command echo, and return verbose result codes.

If the unit is called and sent a break command before receiving the connect message, the modem hangs up.

The 8100A Site Manager may be directly connected to the eight-pin modular serial port connector labeled SUPV (refer to SUPV Port Rate on page 2 -3). When a group of elements is connected in an NMS chain, the 8100A site Controller may be connected to the supervisory port of any one of the elements. This element can then route messages onto the NMS chain to reach the other elements. The COA feature only works through the supervisory port.

2-6 Installation

PRISM 3021

This port is a DCE port configured for 8 bits, no parity, and 1 stop bit. The physical connections are 8-pin modular jacks (electrically RS-232). Refer to TxPORT Customer S ervice on page 1- 4 for cable information. The pinout for this port is shown in Table 2-R.

Table 2-R Supervisory (SUPV) Port Connector

Pinout

Pin Supervisory Port Interface

1Control Out 2 Signal Ground 3 Data Out 4 Data In 5 Signal Ground 6Control In

Table 2-S Pinouts for Standalone Rear Panel Connectors

Pin NM S IN NMSOUT E1 DTE NETWORK POWER EXT CLK

1 Not Used Not Used Tip Output Data In 48 V Return Network Input (Tip) 2 Signal Ground Signal Ground Ring Output Data In Signal Ground Network Input (Ring) 3 Data Out Data Out Not Used Not Used -48 VDC Network Output (Tip) 4 Data In Not Used Tip Input Data Out Frame Ground Network Output (Ring) 5 Signal Ground Signal Ground Ring Input Dat a Out Alarm Contact Station Clock (R ing) 6 Not Used Not Used Not Used Not Used Alarm Common Station Clock (Tip) 7, 8 Chassis Ground Chassis Ground

page 2-9 page 2-9 page 2-7 page 2-9 page 2-9 page 2-5

Standalone Connections

The standalone version of the 3021 has the same connections as the 1051 nest-mount chassis, except that there is no 34-pin Winchester-type high-speed DTE connector. Any information unique to the standalone rear panel is in this section, otherwise follow the reference in Table 2-S. Pinouts for the standalone rear panel connections are provided in Table 2- S. Figure 2 -9 shows the rear panel of the standalone chassis.

DTE PORT

The DTE port pinout is shown in the column labeled DB-25 25-pin of Table 2-T.

1051 Chassis Connections

The 1051 nest-mount chassis provides all the necessary connections to in F i gure 2-13 and Figure 2-14 on page 2-11.

DTE I

NTERFACES

Both models of the TxPORT 1051 chassis provide connection to the customer equipment. Each slot of the 1051-2 has a corresponding E1 DTE 8-pin RJ-48 connector and a highspeed DTE female 25-pin connector located on the chassis rear panel. The 1051-3 chassis is similar except that it has a high-speed DTE 34-pin connector instead of the 25-pin connector. The pinout for the E1 DTE RJ-48 connector is given in Table 2 -V and the pinout for the high-speed DTE connectors is given in Table 2-T.

ALARM/POWER

NETWORK/EXT CLK

NETWORK

E1 DTE

NMS OUT

NMS IN

PORT

DTE

Figure 2-9 Rear Panel of 3021 Standalone Chassis

Installation 2-7PRISM 3021

Table 2-T High-Speed DTE Connector Pinout

ITU/EIA

Circuit

101/AA Frame Ground 1 A Gnd 102/AB Signal Ground 7 B Gnd 103/BA (A) Transmit Da ta A 2 P In 103/BA (B) Transmit Data B 14 S In 104/BB (A) Receive Data A 3 R Out 104/BB (B) Receive Data B 16 T Out 105/CA Request to Send 4 C In 106/CB Clear to Send 5 D Out 107/CC Data Set Ready 6 E Out 108/CD Data Term Ready 20 H In 109/CF Data Carrier Detect 8 F Out 114/DB (A) Transmit Clock A 15 Y Out 114/DB (B) Tran smit Clock B 12 AA Out 115/DD (A) Receive Clock A 17 V Out 115/DD (B) Receive Clock B 9 X Out 113/DA (A) Externa l Clock A 24 U In 113/DA (B) Exte rnal C lock B 11 W In 141/LLB Local Loopba ck 18 J In 140/RLB Remote Loopback 21 BB In 142/TM Test Mode 25 K Out

Common Name

DB-25 25-pin

V.3 5

34-pin

DCE

X.21 - To convert the X.21 interface from the DB-25 to a

DB-15 connector, use part number 9 -1001-098-xxx. Pinouts for the DB-25 to DB-15 adapter are shown in Ta ble 2-U.

T able 2-U DB-25 to DB-15 Adapter Cable Pinout for

the X.21 Interface

Common Name DB-25 DB-15

Framing Ground 1 1 Signal Ground 7 8 Transmit Data 2

Receive Data 3

Data Carrier Detect 8

Receive Clock 17

Sec. Rec. Data/Byte Timing

6 22

2 9

4 11

5 12

6 13

7 14

E1 DTE Port - The PRISM 3021 provides an optional E1 DTE port interface for E1-DTE applications. The E1 DTE connector (This connector is labeled T1 DTE on the rear panel of the 1051 chassis. The 105 1 chassis can be used for DDS, E1, and T1 circuits.) pinout is shown in Table 2-V.

Table 2-V E1 DTE Pinout

Pin E1 DTE Signal

1Tip Output 2 Ring Output 3 Not Used 4 Tip Input 5 Ring Input 6 Not Used 7, 8 Chassis Ground

The PRISM 3021 has four styles of E1-DTE connectors: an RJ-48, a DB-15, a 75-ohm BNC, and a 120-ohm twinax. The pinout for the RJ-48S connectors are gi ven in Table 2-X.

NMS Port

The PRISM 3021 is fully compatible with the TxPORT 8100A Site Controller.

NMS ports provide access to the 8100A Site Controller. The unit accesses the built-in 1051 chassis bus.

An element may be accessed by using an RS-232 connection from the serial port of the computer running the 8100A program to the element’s SUPV port or the (A) NMS IN

2-8 Installation

PRISM 3021

and (A) NMS OUT ports. The different connection methods are described in the following paragraphs.

NMS IN

NMS OUT

AND

The two 6-pin modular connectors labeled (A) NMS IN and (A) NMS OUT may be used for connection to the 8100A Site Controller. This port is configured to allow the connection of multiple collocated units in a daisychained IN/OUT bus arrangement as shown in Figure 2- 10. The OUT port of one element is connected to the IN port of the next element, and so on, to form a complete chain among the group of element s .

HASSIS OPERATION

8100A Site Controller operation has the units chained together. The front panel supervisory port and the rear panel NMS ports operate in the same fashion.

The NMS address, port rate, and power up configuration mode may be set by either configuration switches or through software control. The physical connection is a 6-pin modular connector with the pinouts for these connectors shown in Table 2 -W. This port is a serial RS-232 DCE port configured for eight bits, no parity, and one stop bit.

8100A

NMS OUT IN/OUT (standalone) OUT IN (nest-mount)

Element #1

Element #2

Last Element

NMS IN OUT

Figure 2-10 NMS Daisychain Arrangement

All units on the same NMS chain must use the same NMS bit rate and have different addresses (see NMS Port Rate on page 2- 3, Switch S2 on page 2-3, and Switch S3 on page 2-3).

NMS S

PLIT CABLE

The 8100A Site Controller may be connected directly into the NMS chain between two elements. A Y-cable is used from the 8100A serial port which splits the transmit and receive signals into two 6-pin modular connectors for the (A) NMS IN and (A) NMS OUT ports. Ordering information for this cable is found in Ordering Numbers on page 1-3.

NMS IN

The (A) NMS IN connector provides both the transmit and receive signal pair. This port may be used for a modem connection or as a VT100 terminal interface (see Terminal Interface Layout on page 4-1).

NMS OUT

The (A) NMS OUT connector only provides the receive signal pair.

Table 2-W NMS Port Connector Pinouts

Pin (A) NMS Bus IN (A) NMS Bus OUT

1 Not Used Not Used 2 Signal Ground Signal Ground 3 Data Out Data Out 4 Data In Not Used 5 Signal Ground Signal Ground 6 Not Used Not Used

Network

The PRISM 3021 has four styles of network adapter cables: a 75-ohm BNC, and a 120-ohm twinax, a 120-ohm RJ-48, and a 120-ohm DB-15. The BNC and twinax connectors are standard. The pinouts for the RJ-48 and DB-15 connectors are given in Table 2-X.

Table 2-X Network Connector Pinouts

Connector

Type

RJ-48 1 2 4 5 7, 8 DB-15 3 11 1 9 2, 4

Tip

Input

Ring

Input

Tip

Output

Ring

Output

Ground

Power Connection

The 3021 requires a -48 VDC power source capable of supplying a 150- mA current. All units in the chassis are powered by -48 VDC sources which are connected to the 6-

position terminal strip, TB2, on the rear of the 1051 chassis. The power supply should be sized for maximum current draw for the chassis.

The 1051 chassis is designed with two power buses. The A bus feeds the odd slots and the B bus feeds the even slots. A power board is installed on TB2 which allows the connection of two independent -48 VDC supplies operated in redundant mode. This is the default configuration described in Redundant Power Source below. The other powering method is described in Single Power Source.

Installation 2-9PRISM 3021

Redundant Power Source: The power board allows the

TxPORT 1051 Chassis

TxPORT 1040 Power Supply

– +

GND

1 2 3 4 5 6

TB2

Figure 2-12 Wiring for a Single Power Source

PS A

PS B

– +

GND

connection of two independent - 48 VDC supplies operated in a redundant mode. All slots are powered from the combined input from the A and B power supplies (the A and B buses are in a logical OR arrangement). If one supply fails, the other powers the entire chassis. An example using a TxPORT 1041 power supply is shown in Figure 2- 11.

TxPORT 1041 Power Supply

PS A

PS B

Figure 2-11 Wiring for Redundant Power Sources

– +

GND

1 2 3

TB2

4 5 6

TxPORT 1051 Chassis

Single Power Source: Using a single power source is essentially the same as the redundant configuration with power supply B not operational. If the redundant power board is not used, the A and B buses must be connected together as shown in Figure 2-12.

External Clock Connection

Contacts on the rear of the 1051 chassis permit connection to an external timin g source (u sing TB1, pins 1 and 2). The station timing is configured through the Terminal Interface (see Line Parameters on page 4-13) or through the configuration switches (see Timing Source on page 2-2).

2-10 Installation

PRISM 3021

Unit 1 Unit 2 U nit 3 Unit 4 U nit 5 Unit 6 Unit 7 Unit 8 Unit 9 Unit 10 Unit 11 Unit 12

DTE

High

Speed

DTE

NET

TB1

Line Chassis Mounting Hardw are

Rack and19" or 23" Multiple

Figure 2-13 Model 1051-3 Chassis, Front View

NOTE: The DB-25 version (1051-2) is also available (the V.35 is shown).

For 3021 applications, read E1 in p lace of T1 on the rear of the 1051 chassis.

T1 11

( B ) NMS OUT

DTE

High

Speed

DTE

NET

Redundant

Power Board

DTE

High

Speed

DTE

NET

TB2 - 23456

DTE

High

Speed

DTE

NET

DTE

High

Speed

DTE

NET

1 - EXT CLK 2 - EXT CLK 3 - ALARM RING

DTE

High

Speed

DTE

NET

TB1

4 - ALARM TIP 5 - SIG GND

DTE

High

Speed

DTE

NET

DTE

High

Speed

DTE

NET

1 - +48 V RTN (B) 2 - FRAME GND 3 - -48V IN (B)

TB2

DTE

High

Speed

DTE

NET

4 - -48V IN (A) 5 - SIG GND 6 - +48 V RTN (A)

( B )

NMS

DTE

High

Speed

DTE

NET

23451

( A ) NMS

DTE

High

Speed

DTE

NET

( A ) NMS OUT

DTE

High

Speed

DTE

NET

ENET

Figure 2-14 Model 1051-3 Chassis, Rear View

Installation 2-11PRISM 3021

2-12 Installation

PRISM 3021

3. Operation

LOCFAR

D T E

RD RTS DTR

STATUS

E1 CSU/DSU

N E T

BV/CR/FE

LOS/OOF

AIS

REM ALM

LOOP

TST

ERR

Figure 3-1 3021 Front Panel

2 3 4

11 125

14 15

P V

3021

T S T

Introduction

This chapter describes general operation of the TxPORT PRISM 3021 front panel. The 3021 may be controlled manually using the front panel and the circuit board configuration switches (configuration switch es are discussed in Unit Configuration on page 2 -1).

Chapter 4, Terminal Operation covers the firmware-controlled Terminal Interface program, which gives the user maximum control. The 3021 may also be controlled using the 8100A Site Controller.

Factory default settings are underlined

through-

out this manual.

Front Panel Controls and Indicators

The front panel contains 15 LED indicators which convey status, alarm, and test information. The front panel also contains a test switch and a supervisory port connector. The following descriptions refer to Figure 3-1.

General Status Indicators

1. STATUS: The 3021 has two LED indicators on the

front panel bezel. These general status LEDs provide a quick check of the 3021 operating condition (Alarmed or Not Alarmed).

If neither LED is lit, the 3021 is not powered. If the green LED is lit, the 3021 is powered and may be functioning normally. If the red LED is lit, there is a fault that exceeds alarm thresholds or another type of 3021 failure. The pr oblem can usually be isolated by further examination of the other front panel LEDs as described below. Some errors can only be determined throu gh the terminal interface (for example, OOF).

DTE Indicators

2. TD: This green LED lights during a mark condition on the high-speed transmit data line.

3. RD: This green LED lights during a mark condition on the high-speed receive data line.

4. RTS: This green LED lights when the request to send signal is active.

5. DTR: This green LED lights when the data terminal read y signal is active.

TRANSPORT

T est Controls and Indicators/Terminal Access

6. Test Switch: This switch (FAR/LOC) is used for local

testing and setting the SUPV po rt rate when downloading firmware for the Flash PROM. Refer to Front Panel Testing on pag e 3-2 for more information.

7. Activity Indicators: These two small, recess ed LEDs

indicate super visory and network m anager port activity.

8. SUPV: The supervisory jack provides direct terminal

access to control and monitor the 3021. Refer to Supervisory Port on page 3-2 for more information.

Operation 3-1PRISM 3021

Network Indicators

9. BV/CR/FE: This LED lights when the unit detects bipolar violations, cyclic redundancy checking errors, or framing errors.

10. LOS/OOF: This LED flashes when the unit detects a loss-of-signal condition or lights continuously during an out-of-frame condition from the DDS network.

11. AIS: This LED lights continuously when the network interface is receiving an Alarm Indication Signal.

12. REM ALM: This LED lights when the network in terface is receiving a Remote Alarm Indication.

T esting Indicators

13. LOOP: This LED lights continuously when the network interface is in a line loopback.

14. TST: This LED indicates that a BERT is in progress.

15. ERR: This LED lights when BERT-pattern errors are

detected.

Front Panel Testing

The previous section gave a brief description of each front panel control. This section explains the front panel test functions. Testing may also be performed using software control from the 8100A Site Controller or the Terminal Interface program (refer to chapter Terminal Operation).

When the test switch is returned to th e center position, the 3021 sends five seconds of loopdown code and then returns to its normal operating mode.

When the Test switch is in the LOC position, the 3021 performs a network LLB as shown in Figure 3-2, and the LOOP LEDs light.

Supervisory Port

This 8-pin modular RS-232 jack provides direct terminal access for controlling the 3021 and gathering status and performance data.

The supervisory port serves several functions. A terminal may be connected to this port for external software control. A modem may be connected for remote access. The port supports the call on alarm feature. A ComView NMS device, such as a 8100A Site Controller, may be connected to this port. Refer to Power Connection on page 2-9 for connection information.

Upgrading Software

The FAR/LOC switch is also used to set the SU PV port rate when upgrading software for the 3021 (see PC Setup on page A-1).

Test Switch

This three-position switch (labeled FAR/LOC) is used for local testing. Figure 3 - 2 shows the type of loop for far and local testing.

When in the FAR position, the 3021 sends five seconds of IBLC (in-band loop code) and then sends the BERT pattern last selected in the user interface (see Patterns on page 4 -9). The default is QRSS. When transm itting a test pattern, the TST LED remains On. The ERR LED lights for one second when a bit error or sync loss on the returned data is detected.

To Network

4 5

1 2

From Network

RJ-48C

Network Interface Framer/Deframer Multiplexer Receivers/ Drivers

From

NET LLB

BERT Generator/

Detector

Ports

Figure 3-2 Network LLB

From NET

NET

Framer/Deframer

From NET

NET

Receivers/Drivers

DTE (DSX1)

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1'-to 655'

to cross-connect

1 2

4 5

3-2 Operation

PRISM 3021

4. Terminal Operation

Terminal Interface

This chapter describes the screens structure and menu controls for the TxPORT PRISM 3021 terminal interface. The interface is a firmware application program embedded inside the unit.

It requires an ANSI-compatible VT100 terminal (ASCII), or a computer running an ANSI terminal emulation program. The terminal interface uses ASCII break and escape functions, which are implemented differently with the various terminal emulation programs.

Screen Components

Terminal interface screens have several components common to all screens (Figure 4-3).

EVICE TYPE AND REVISION

The device type (such as PRISM 3021) and the revision control numbers are shown in the upper left corner. The first number is the hardware revision and the second number is the software revision. Information is displayed for the near end unit (connected directly to the terminal) on the top lin e, and for the far end unit (connected to the network E1 inter-

face) on the second line. Refer to this information when contacting the factory with inquiries.

ATE AND TIME

The top right corner of the termin al screen displays the current date and time. The setting of these functions is described in Utilities on page 4-20.

LEMENT

Below the header (PRISM 3021), the Element ID is displayed. Refer to Management Ports on page 4- 18 for information on the Element ID.

ENU TITLE

The menu title (third line, center) denotes the general classification of functions currently accessible by the user (such as MAIN or PERFORMANCE).

EAR AND FAR ELEMENT

When remote access is activated on the Maintenance screen, the Element field is displayed to allow selection of the nearor far-end device (element).

Near End Type Hardware Rev. / Software Rev. Date Element ID Time

---------------------------------- Menu Title --------------------------------

-------------------------------Diagnostic Messages --------------------------Messages Local / Remote Screen Indicator

Figure 4-3 Terminal Interface Layout

Terminal Operation 4-1PRISM 3021

ESSAGES

Diagnostic messages may be displayed at the bottom of the screen. These messages include:

Session terminated by user. Session timed out. Remote display in use. . . NET ALARM DTE ALARM NET LOOP DTE LOOP TEST ACTIVE FAR END ALARM FAR END LOOP FAR END TEST ACTIVE

OCAL AND REMOTE SCREEN INDICATOR

Identifies the visible screen as displaying the local or remote interface.

Cursor Controls

The terminal interface utilizes a highlighted cursor to make selections from menus and select fields within screens to be operated on. The cursor is moved in different ways, depending on the terminal emulation program used. Most programs allow use of the TAB and SHIFT + TAB keys. Others allow use of the arrow keys. Once a field is highlighted, it is manipulated as described in section Field Types.

For keyboards that do not have these standard keys or have only some of them, an alternate set of cursor control commands is provided. Each command is performed by pressing a letter key while holding down the CONTROL key. Alternate commands may be freely mixed with the keyboard commands at your discretion.

Table 4-A Keyboard and Alternate Commands

Keyboard Command Alternate Command

left arrow CONTROL+S right arrow CONTROL+D up arrow CONTROL+E down arrow CONTROL+X backspace CONTROL+H delete CONTROL+Z

Field Types

Each screen is made up of fields. The two basic field types are user-selectable and display-only. If the highlighted cursor can be moved to a field, it is a user-selectable field. All other fields are for display only. User-selectable fields allow for changes to be made or comma nds to be executed.

Fields without brackets or parenthesis are display-only. They cannot be changed on the screen. Most user-selectable fields are enclosed in brackets or parenthesis and are described in the following paragraphs.

Fields enclosed in brackets [ ] offer a list of selections from which to choose. The selections may be toggled by pressing the spacebar. Each time it is pressed, a new item appears. When the appropriate choice is displayed, press ENTER to select it.

Fields enclosed in parenthesis ( ) are manipulated by one of the following two methods:

• Pressing E NTE R on such fields as (Re set ) a nd (St art Test ) simply execu tes th e functi on.

• The most common type of field in parenthesis accepts typed input in the form of letters and/ or numbers. Typing characters when the field is highlighted causes the current entry to be replaced with the new characters. To edit an existing entry rather than replace it, press the ri ght arrow key to move the cursor to the point that needs editing. Characters may then be inserted or deleted. Typed data is always inserted rather than typed over. If the field is full, though, at least one character must be deleted to add another.

• Many fields of this type may also be toggled by pressing the spacebar. Other fields are range checked, where the user is not allowe d to e xit wi th an il le gal v alu e set.

Any screen may be redisplayed or refreshed by pressing CONTROL+U. Any changes to fields on a screen that have not been activated by pressing ENTER are discarded.

4-2 Terminal Operation

PRISM 3021

Software Configuration

MAIN

Log

Figure 4-5 Menu Structure

Line Parameters, page 4-13 Alarm Parameters, page 4-15 Port Parameters, page 4-16 Management Ports, page 4-18 Summary, page 4-19

Off

E1 24 Hour, page 4-6 E1 30 Day, page 4-6 Standard 24 Hour, page 4-6 Standard 30 Day, page 4-6 Enhanced 24 Hour, page 4-7 Enhanced 30 Day, page 4-7

Alarms

page 4-4

Performance

page 4-5

Maintenance

page 4-8

Configuration

page 4-11

Utilities

page 4-20

The terminal interface is a firmware application program embedded inside the PRISM 3021, that can be accessed through the SUPV port (see Supervisory (SUPV) Port on page 2-6) using a Telnet session.

Interface Start-up

Once a compatible terminal is properly connected to the unit, a terminal interface session is started by sending a break command to the unit (or by pressing ENTER four times). The Main Menu screen is displayed if a password has not been specified.

If a password has been previously established, the correct password must be entered to continue the ses sion. The pass - word is case-sensitive. A password can be established through the Utilities screen on page 4 - 20. If the password has been forgotten or is unavailable, contact TxPORT Technical Support.

Menu Structure

The terminal interface opens with the Main menu (Figure 4 -

4), allowing five options: Alarms, Performance, Maintenance, Configuration, and Utilities (F igure 4-5). Each menu screen allows accessing the local or far-end menu screen.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:50:50

------------------------------------- MAIN ----------------------------------

Alarms Performance Maintenance Configuration Utilities

----------------------------------- Messages --------------------------------

If a keystroke is not made for ten minutes, the terminal interface auto-mati-

cally logs off.

Figure 4-4 Main Menu Screen

Terminal Operation 4-3PRISM 3021

Alarms Screen

The Alarms screen (Figure 4- 6) allows viewing the current alarm status of the network and the DTE lines.

NET A

These status lines display the selected element’s current network signal alarm state (Table 4 -B). Alarms are determined by the selectable thresholds in Alarm Parameters on page 4-15.

LARMS

Table 4-B NET Alarm Indicators

Table 4-C DTE Alarm Indicators

Alarm Description

None No al arm threshold has been exceeded, although

errors may exist which do not exceed thresholds.

DTR DTR on DTE interface is false.

Selectable thresholds in the Alarm Parameters screen and the DTR Alarm may be enabled or disabled for the ports in the Port Parameters screen.

Alarm Description

------- No status is available None No alarm threshold has been exceeded, although

errors may exist which do not exceed thresholds. XCL The unit has lost its external clock source ERRS The Errored Seconds, Severely Erro red Seconds, o r

Bipolar Errored Seconds threshold is exceeded. LOSS The Loss Of Signal Seconds threshold is exceeded. OOSS The Out of Service Seconds threshold is exceeded. OOFS The Out Of Frame Seconds threshold is exceeded.

DTE A

LARMS

These status lines display the selected element’s current DTE signal alarm state (Table 4- C). Alarms are determined by the selectable thresholds in Alarm Parameters on page 4-15.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:51:01

------------------------------------ ALARMS ----------------------------------

ALARM STATUS

The main body of the Alarms screen shows the current count for parameters that may be used to trigger an alarm.

The Current column displays the consecutive seconds during which the error condition has existed.

The Threshold column displays the values set in the Alarm Configuration screen (page 4- 15). Parameters having a current value equal to or greater than its non-zero threshold generates an alarm. Any parameter with a threshold value of zero is disabled from generating alarms. An alarm is declared when t he current value of any parameter exceeds its non-zero threshold.

The parameters shown on the Alarms screen are updated at approximately five-second intervals.

ESET ALARM REGISTERS

Pressing ENTER on (RESET) zeros the value of all Current alarm parameters.

NET Alarms: NONE DTE Alarms: NONE Current Threshold Loss of Signal Seconds (LOSS): 0 5 Errored Seconds (ES): 0 45 Severely Errored Seconds (SES): 0 5 Unavailable Seconds (UAS): 0 0 Out of Frame Seconds (OOFS): 0 5 Remote Alarm Seconds (RAS): 0 0 AIS Seconds (AISS): 0 0 BPV Seconds (BPVS): 3 0 DTE LOS/OOF Seconds (LOSS): 0 0 Power Loss Seconds (PLS): 0

Reset Alarm Registers: (RESET)

----------------------------------- Messages ---------------------------------

4-4 Terminal Operation

Figure 4-6 Alarms Screen

PRISM 3021

Performance Screens

The performance screens display a detailed history of continuously monitored error parameters. The termin al interface provides a display of near-end and far-end performance data using the facility data link.

The unit is equipped with a dual set of performance data registers that hold line stati stics for both the telco and user. Each register set provides detailed status and performance history for the network interface.

The system has six performance screens. The E1 24 Hour, Standard 24 Hour, and Enhanced 24 Hour screens allow viewing the 24-hour detailed performance history of the E1 circuit. The only difference in the three screens is the type of performance data displayed. The E1 24 Hour screen is shown in Figure 4-7.

The E1 30 Day, Standard 30 Day, and Enhanced 30 Day screens allow viewing a 30-day history of a particular element’s performance. These screens reference intervals by date rather than by time.

To reach each of the six screen types, toggle the spacebar at the E1 24 Hour Field. The fields common to all performance screens are described as follows.

LEMENT

Pressing the spacebar toggles this field for selection of either the Near or Far unit as source of performance data or

the target of commands. Near refers to the unit t o which the terminal is connected. Far refers to the unit at the other end of the network E1 span.

ARGET

This field selects the display of User or telco performance registers. Telco registers are for viewing only and may not be changed. The options are as follows.

[USER] [NET] - Display the user performance registers for the network. This is only available if the E1-DTE option is installed.

[USER] [DTE] - Display the user performance registers for the E1 DTE.

[TELCO] [NET] - Display the telco performance registers for the network.

[TELCO] [DTE] - Display the telco performance registers for the E1 DTE. This is only available if the E1-DTE option is installed.

RROR EVENTS

This field displays the run ning total of error events for the circuit selected in the Element field and is applicable only when the Target field is set to User. This count accumulates until it reaches 65535 or is reset by pressing ENTER with the Reset field highlighted.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:51:01

----------------------------- 24 HOUR PERFORMANCE ----------------------------

Element: [NEAR] Status: OK Target: [USER] [NET] Completed Days: 0 Error Events: 0 (RESET) Completed Intervals: 0 FEBE Events: 0 (RESET) 24 Hr. % Error Free: 100 (RESET PERFORMANCE REGS) 30 Day % Error Free: 100

[E1 24 HOUR]

537 0 0 0 0 24 Hour 0 0 0 0 30 Day 0 0 0 0

------------------------------------------------------------- Time INTERVAL FEBES FMFE MFRAS DEGRADED

----------------------------------- Messages ---------------------------------

Figure 4-7 E1 24 Hour Performance Screen

Terminal Operation 4-5PRISM 3021

FEBE E

VENTS

This is the actual number of far-end block errors (FEBEs) that the unit has received. This count accumulates until it reaches 65535 or is reset by pressing ENTER with the Reset field highlighted.

ESET PERFORMANCE REGISTERS

This field allows the element registers to be reset and may only be used when the Target field is set to User. If ENTER is pressed, the following warning appears:

DELETE ALL PERFORMANCE DATA?

(NO!) (YES)

The remaining common fields in the performance screens are for display only. They are defined as follows:

TATUS

This field displays the selected E1 line status derived from the type or absence of errors in the received data. This status represents the immediate state of the received E1 signal and is not related to the alarm thresholds. This field shows one or more of the signal status conditions listed in Table 4- D on page 4-10.

OMPLETED DAYS

This field displays the number of days included in the 30day totals.

OMPLETED INTERVALS

This field displays the number of 15-minute intervals in the last 24-hour period since the registers were last cleared.

24 H

.% E

RROR FREE

This field displays the number of 15-minute intervals in the last 24-hour period since the registers were last cleared. It is based only on the ES and UAS parameters.

% E

RROR FREE

30 D

This field displays the number of one-day intervals in the last 30-day period since the registers were last cleared. It is based only on the ES and UAS parameters.

ERFORMANCE DATA

The main body of display data consists of error events for three different periods: the first display line shows the data accumulated for the current interval (from 0 to 900 seconds), the second line shows the totals for the last 24-hour period (or the last 96 fifteen-minute intervals), and the third line shows the 30-day totals.

The remaining lines of this screen show the data for any intervals containing errors. They are explained in the following paragraphs.

If more than four errored intervals have elapsed, [PAGEDN] appears to the left of the performance data. Pressing ENTER on this field displays the next four errored intervals. [PAGE-UP] appears once [PAGE-DN] is used. Pressing ENTER on [PAGE-UP] displays the previous four errored intervals. Only intervals that contained errors are displayed, which eliminates rows of zeros. If an interval is not displayed, no errors were detected during that period.

Parameters shown on the performance screens are updated at five-second intervals.

E1 24 H

OUR AND

E1 30 DAY E

RROR PARAMETERS

Time and Date: The E1 24 Hour screen shows the time in 15-minute increments. The E1 30 Day screen shows the date in one-day increments. The real time (or date on the 30-day screen) of the interval beginning is shown.

Interval: In the 24 Hour screen, Interval 1 is the most recently stored 15-minute interval and interval 96 is the oldest in the current 24-hour period. On the 30 Day screen, interval 30 is the oldest one-day interval in the current 30day period.

FEBES (Far-End Block Error Seconds): This is the number of seconds that the unit has received a far-end block error status.

FMFE (Far-End Multiframe Errors): This is the number of seconds that the unit has recorded far-end multiframe errors.

MFRAS (Multiframe Remote Alarm Seconds): This is the number of seconds that the unit has received a multiframe remote alarm status.

Degraded: This is the number of degraded seconds that the unit has recorded.

TANDARD

ARAMETERS

24 H

OUR AND STANDARD

30 DAY E

RROR

Time and Date: The Standard 24 Hour screen shows the time in 15-minute increments. The Standard 30 Day screen shows the date in one-day increments. The real time (or date on the 30-day screen) of the interval beginning is shown.

Interval: In the Standard 24 Hour screen, Interval 1 is the most recently stored 15-minute interval and interval 96 is the oldest in the current 24-hour period. On the Standard 30 Day screen, interval 30 is the oldest one-day interval in the current 30-day period.

ES (Errored Seconds): This is the number of one-second periods in which at least one error occurred.

UAS (Unavailable Seconds): This is the number of onesecond periods in which consecutive severely errored seconds cause an unavailable state.

BES (Bursty Errored Seconds): This is the number of onesecond periods with more than on e, but less than 320 CR C4 error events.

4-6 Terminal Operation

PRISM 3021

SES (Severely Errored Seconds): This is the number of one-second periods with 320 or more CRC4 error events or at least one out of frame event occurred.

LOFC (Loss of Frame Count): An LOFC is the accumulation of the number of times a loss of frame is declared.

CSS (Controlled Slip Seconds): This is the number of onesecond periods in whi ch at least one co ntrolled slip (a replication or deletion of a E1 frame to the receiving terminal) occurred.

For generic TR-54016-far-end devices, only the standard telco 24-hour performance data is displayed. 30- day data is not available.

NHANCED

ARAMETERS

24 H

OUR AND ENHANCED

30 DAY E

RROR

Time and Date: The Enhanced 24 Hour screen shows the time in 15-minute increments. The Enhanced 30 Day screen shows the date in one-day increments. The real time (or date on the 30-day screen) of the interval beginning is shown.

Interval: In the Enhanced 24 Hour screen, Interval 1 is the most recently stored 15-minute interval and interval 96 is the oldest in the current 24-hour period. On the Enhanced 30 Day screen, interval 30 is the oldest one-day interval in the currnet 30-day period.

CRCES (CRC Errored Seconds): The is the number of one-second periods in which at least one CRC error occurred.

OOFS (Out of Frame Seconds): The number of one-second periods in which a frame sync loss occurred.

LOSS (Loss of Signal Seconds): The number of one-second periods in which the E1 received signal was interrupted.

AISS (Alarm Indication Signal Seconds): This is the number of one-second periods in which an all-1s signal is received.

RAS (Remote Alarm Seconds): This is the number of seconds generated by the terminal equipment when an improper signal is received from the facility or upon receipt of unframed all-1s.

BPVS (Bipolar Violation Seconds): This is the number of one-second periods in which at least one bipolar violation occurred.

Terminal Operation 4-7PRISM 3021

Element Maintenance Screen

The Element Maintenance screen (Figure 4- 8) allows performing loop tests and/or BERT functions on th e E1 circuit . A BERT is performed by using on-board tes t facilities with no other test equipment needed. Some of these tests may also be activated by the front panel switch as described in section Front Panel Testing on page 3-2. Diagram 1 of Figure 4-9 on page 4-10 shows a normally operating 3021.

LEAR TESTS

Pressing ENTER on this field clears all local tests and any line loops that have been initiated.

LEAR ALARMS

Pressing ENTER on this field causes all near-end alarms to be cleared.

E1 L

OOP

The type of E1 loop is chosen by toggling the spacebar and is executed by pressing ENTER (Loop changes can be made only when the test is not in the active mode). This unit su pports the following types of loops which are graphically represented on page 4-10 and page 4-11.

NET PLB: (Payload Loopback): As shown in diagram 2 of Figure 4-9 on page 4-10, the received network signal is looped back toward the network with signal regeneration, framing, and CRC regeneration. Framed all-1s are passed to the DTE ports. The NET PLB may be activated by receipt of out of band loop code on the network receive signal or by selection in the user interface maintenance screen.

FAR PLB: This selection activates a NET PLB on the remote-end unit.

NET LLB: (Line Loopback): As shown in diagram 3 of Figure 4 - 9 on page 4 -10, the received network signal loops back toward the network with signal regeneration only (framing and CRC intact). During the NET LLB, data from the DTE loops back to the DTE. The NET LLB can be activated by receipt of in-band or out-of-band loop code on the network receive signal, by the front panel loop switch, or by selection in the interface maintenance screen. Setting the front-panel test switch to LOC activates this loopback.

FAR LLB: This selection activates a NET LLB on the remote-end unit. Setting the front-panel test switch to FAR activates this loopback.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:52:19

------------------------------ ELEMENT MAINTENANCE ---------------------------

BERT: [E1 NET ] (CLEAR TESTS) Pattern: [QRSS ] (CLEAR ALARMS) Test Length: [Cont. ]

E1 Loop: [FAR PLB] Pattern Sync: NO TEST E1 Unloop: [FAR PLB] Elapsed Time: 00:00:00 Bit Errors: 0 Port Loop: [One NEAR ] Errored Seconds: 0 Port Unloop:[One NEAR ] % EFS: 100

(START TEST) (RESET ERRORS) E1-NET Status: OK E1-DTE Status: OK Near Loops: Far Loops:

----------------------------------- Messages ---------------------------------

4-8 Terminal Operation

Figure 4-8 Element Maintenance Screen

PRISM 3021

NET MLB: (Maintenance Loopback): As shown in diagram 4 of Figure 4- 10 on page 4- 11, the NET MLB command loops data at the E1 DTE port back toward the network (passes network data to the DTE and returns data t o the net work). The MLB affects only network channels assigned to the E1 DTE.

DTE MLB: As shown in diagram 5 of Figure 4-10 on page 4-11, the E1 DTE MLB command loops all network data back toward the DTE ports at the network interface. Data passes through to the network. Set the E1-NET Timing to Internal when this loop is enabled.

DTE LLB: As shown in diagram 6 of Figure 4-10 on page 4 -11, the E1-DTE LLB command loops data received at the E1-DTE interface back toward the E1 DTE (all DS0s are returned to the E1-DTE port). The E1-DTE data is also passed to the network.

E1 U

NLOOP

The unloop field causes the unit to take down the currently displayed loop. This field usually reflects the current lo op.

ORTLOOP

This field is used to loop high-speed data port from the network back to the network and data from the DTE back to the DTE as shown in diagram 7 of Figure 4 - 10 on page 4 -

11. The Port Loop may be activated by receipt of inband

V.54 fractional loop code or by this field.

ORTUNLOOP

The unloop field causes the unit to take down the currently displayed loop. This field usually reflects the current lo op.

BERT

These fields control the Bit Error Rate Test feature. BERT is performed on an interface and preempts user data. The choices are provided below.

IDLE: The unit runs BERTs on the idle channels. E1 NET: The unit runs a BERT on the E1 network data

channels. DTE NET: The unit runs a BERT on the E1-DTE data

channels toward the network. One NET: The unit runs a BERT on the data channels

assigned to Port One toward the network. One DTE: The unit runs a BERT on Port One data channel

towards external equipment. Channel 0 through 31: The unit runs a BERT on the

selected data channel. The channel must be unassigned.

ATTERNS

This field specifies the pattern transmitted during a BERT, including BERTs initiated from the front panel switch. Modifying this field does not cause the pattern to be transmitted (refer to Start Test below). The choices are QRSS 63, 511, 2047, 2

EST LENGTH

, 220, 223, 1:8, 3:24, ALT, and CLEAR.

Defines the run-time of test pattern generation and error accumulation. The choices are 15 min, 30 min, 60 min, 24 Hour, and Continuous

ATTERN SYNC

This field displays the current state of pattern sync during a test. If no test is in progress, NO TEST is displayed. If a test is active, but the receiver is not in pattern sync, NO SYNC is displayed. If the receiver is in pattern sync, IN SYNC is displayed.

LAPSED TIME

Displays the amount of time elapsed since a timed test began or, if completed, the total test time.

IT ERRORS

Displays the total number of bit errors detected since the test began or since error statistics were cleared (up to 999,999).

RRORED SECONDS

This field displays the number of asynchronous errored seconds that have been detected since the test began or since error statistics were last cleared. This parameter includes bit error seconds and sync loss seconds.

% EFS

This ratio is derived from the number of error-free seconds divided by the number of seconds accumulated in Elapsed Tim e.

TART TEST

Pressing ENTER with the cursor on this field starts the selected test pattern. TEST IN PROGRESS appears once the test has started and the field changes to STOP TEST. To end the test, press ENTER on STOP TEST.

ESET ERRORS

Pressing ENTER with the cursor on this field causes the test error results to be cleared to zero.

Terminal Operation 4-9PRISM 3021

To Netwo rk

4 5

1 2

From Network

To Network

4 5

RJ-48C 1 2

From Network

RJ-48C

Network Interface

Framer/Deframer Multiplexer Receivers/Drivers

From NET

NET

Framer/Deframer

From NET

NET

Receivers/Drivers

DTE (DSX1)

BERT Generator/

Detector

From Ports

Ports

Normal Operation

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From

Ports

NET

PLB

BERT Generator /

Detector

All ones

to DTE

Ports

From

NET

Framer/Deframer

From

NET

Receivers /Drivers

DTE (DSX1)

Network PLB

(100' max.)

DTE (EIA-530 or V.35)

RJ-48C

DSX1, 1'-655'

to cross-connect

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1' to 655' to cross-connect

2 4

1 2

4 5

To Network

4 5

RJ-48C 1 2

From Network

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From

NET LLB

Ports

BERT Generator /

Detector

Network LLB

Figure 4-9 Loopback Diagrams

E1-NET

E1-DTE S

AND

TATUS

These two fields display the fault status of the network and the far-end DTE. They indicate current fault conditions. Status indications are described in NET / DTE Status. They do not indicate that alarm thresholds are exceeded. Status indications are described in Table 4-D.

Table 4-D Status Indications

Status Description

------- No status is available OK No errors are currently detected. ERR Frame bit errors, CRC errors, or BPVs are detected. LOS A loss of signal condition exists. OOF An out of frame condition exists. RAI Far end is receiv in g a remote alarm indic ation signal. AIS The far end is receiving an alarm indication signal. UAS An unavailable signal state exists due to consecutive

severely errored seconds.

From

NET

From

NET

EAR LOOPS

Framer/Deframer

Receivers /Drivers

DTE (DSX1)

EIA-530 or V.35

DSX1, 1'-to 655'

to cross-connect

Displays the loop status of the near element.

AR LOOPS

Displays the loop status of the far element.

(100' max.)

RJ-48C

1 2

4 5

4-10 Terminal Operation

PRISM 3021

To Network

4 5

1 2

From Network

RJ-48C

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From

NET

Framer/Deframer

From

NET

Receivers /Drivers

DTE (DSX1)

BERT Generator /

Detector

From Ports

Ports

Network MLB

NET

MLB

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1' to655' to cross- connect

1 2

4 5

To Network

4 5

1 2

From Network

To Network

4 5

1 2

From Network

To Network

4 5

1 2

From Network

RJ-48C

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From

NET

Framer/Deframer

From

NET

Receivers /Drivers

DTE (DSX1)

DTE MLB

BERT Generator /

Detector

From Ports

Ports

DTE MLB

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From Ports

Ports

BERT Generator /

Detector

From

NET

Framer/Deframer

From

NET

E1 DTE

LLB

Receivers /Drivers

DTE (DSX1)

DTE LLB

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From Ports

Ports

BERT Generator /

Detector

Port Loop

(bidirectional)

NET

From

NET

Framer/Deframer

NET

From

NET

DTE

Near/Far

Receivers /Drivers

DTE (DSX1)

Figure 4-10 Loopback Diagrams

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1' to 655'

to cross- connect

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1' to 655'

to cross- connect

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1' to 655' to cross- connect

1 2

4 5

1 2

4 5

1 2

4 5

Terminal Operation 4-11PRISM 3021

Configuration Screen

The Configuration screens allow viewing and setting configuration parameters for the network elements. Figure 4 -11 shows the Configuration screen. Figure 4-12 shows the structure of the configuration menu and the page number of the appropriate set of parameters.

To send a new configuration to the unit, press ENTER on one of the fields or exit the screen. The underlined values are the factory default parameters.

Configuration Menu

Line

Parameters page 4-13

Alarm

Parameters

page 4-15

Port

Parameters

page 4-16

Management

Parameters

page 4-18

Summary page 4-19

Figure 4-12 Configuration Menu

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:52:32

--------------------------------- CONFIGURATION ------------------------------

Line Parameters Alarm Parameters Port Parameters Management Ports Summary

----------------------------------- Messages ---------------------------------

4-12 Terminal Operation

Figure 4-11 Configuration Menu Screen

PRISM 3021

INEPARAMETERS

The Line Parameters screen (Figure 4- 13) allows reviewing and setting line parameters for the selected element. This screen has the following fields, most of which have userselectable options. To send the new line parameter to the unit, either press ENTER on one of the fields, change the Element selection, or exit the screen.

E1 -N ET Framing: This field is used to select the type of framing for the network side of the element as CCS CRC CCS, CAS, CAS CRC, and UNFRAME D .

E1 -N ET Line Code: Sets the network side line codi ng as either AMI or HDB3

PRM Enable: This field allows the E1.403 Performance Report Message, which is sent once a second, to be turned on or off. The choices are ENABLE and DISABLE

E1-National Bits: There are five national bits transmitted in each E1 multiframe. The 3021 can use one of these bits to create a data link between two units. The data link operates at a rate of 4 kbps. Both endpoint units must have the same bit selected. These bits may or may not be carried through when the connection crosses service boundaries controlled by different carriers. In cases where the bits are not carried through, the remote communications channel option can be used to communicate with the far-end unit (see Remote Comm Channel below).

E1 -NET Timing: Sets the timing source to synchronize the unit’s internal timing.

Internal: The unit’s internal frequency standard is used for

all timing.

Port 1: Timing is synchronized to the external terminal tim-

ing clock supplied from the DTE and connected to the selected port.

Verify that the external DTE clock is operating at

the data rate selected for Port 1.

Network

: Timing is derived from the network recovered

clock (most applications use this selection).

E1-DTE: The unit synchronizes the clock recovered from

the E1 DTE port.

Station: Timing is derived from an external station clock.

When Station is selected, a field labeled Station Timing appears directly below the E1-NET Timing with the following options:

64K x (

number of channels), 2.048 MHz, 1.544 MHz, and

56K x (number of channels)

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:52:43

-------------------------------- LINE PARAMETERS -----------------------------

E1-NET Framing: [CAS CRC ] Rem Comm Channel: ( 0) E1-NET Line Code: [HDB3] E1-DTE Line Code: [HDB3] PRM Enable: [ENABLE ] E1-DTE Channel: [8 ] E1-National Bits: [Bit 1, SA4] Setting: [THRU] E1-NET Timing: [Network ]

Channel Allocation: 1111111 DDDDDDDD SDDDDDDD DDDDDDDD

----------------------------------- Messages ---------------------------------

Figure 4-13 Line Parameters Screen

Terminal Operation 4-13PRISM 3021

Remote Comm Channel: This field is used to select an unused idle channel for a communication link to a far-end unit. A DS0 channel (1 through 31) may be assigned or 0 selected to disable this option. If 0 is selected, communication can be established using national bits.

When the remote communication is selected, test conditions such as a remote network LLB or PLB or a local network LLB interrupt access to the far-end unit.

If far-end communication is interrupt ed for any reason while accessing the remote unit, exit and then reenter this screen to ensure that all the parameters have been updated.

E1-DTE Line Code: This field is used to set the DTE side line coding as either AMI or HDB3

E1-DTE Channel: This field is used to select channels to be assigned to the E1/DTE from 1 through 31. Channel 16 cannot be selected for E1-DTE applications if E1-NET Framing is set to CAS or CAS CRC

Settings: Selects the channel to be either IDLE or THRU. Channel Allocation: This display -only field indicates the

network channel assignments with Chan nel 1 on the left and Channel 31 on the right.

Non-assigned idle channels are marked with a dash (-). Remote communication channels are marked with an R. Port numbers are used to represent channels assigned to the

port. When channels are assigned to a port in the Alternate

assignment mode (see DS0 Channel Assignment on page 4-

16), each data channel is followed by an idle channel that is

not assignable for other ports and is marked with an X. E1-DTE channels are shown with a D. Signal channels are marked with an S. Channel 0 is always

reserved for framing and does not appear on the screen. channel 16 is an S for signaling if CAS framing is selected. If CAS is not selected, channel 16 is available for other use.

4-14 Terminal Operation

PRISM 3021

LARM PARAMETERS

The Alarm Configuration screen (Figure 4-14) allows reviewing and setting alarm-related thresholds for the selected element. These thresholds are the minimum acceptable performance levels. To modify the parameters, highlight the desired statistic, type in the new value (any number from 0 to 900) and press ENTER. If this value is later surpassed, an alarm indication appears. A field set to 0 causes the element not to alarm on that statistic.

Errored Seconds: This field shows the number of one-second periods in which at least one error occurred. The default is 45.

Severely Errored Seconds: This field shows the number of one-second periods in which at least 320 CRC errors or one

OOF (out-of-frame) event occurred. The default is 5.

Loss of Signal Seconds: This field shows the number of one-second periods in which the E1 received signal is interrupted. The default is 5.

Unavailable Seconds: This field shows the number of onesecond periods in which consecutive severely errored seconds cause an unavailable state. The default is 0.

Remote Alarm Seconds: This field shows the number of seconds generated by the terminal equipment when an improper signal is received from the facility (or upon receipt of unframed all-1s). The default is 0.

AIS Seconds: This field shows the number of one-second periods when all-1s are received. The default is 0.

Out of Frame Seconds: This field shows the number of one-second periods in which a frame sync loss occurred. The default is 5.

BPV Seconds: This field shows the number of one-second periods in which at least one bipolar violation occurred. The default is 0.

DTE LOS/OOF Seconds: This field shows the number of one-second periods where the E1-DTE received signal frame synchronization is interrupted or the amplitude drops below a certain level. The default is 0.

Alarm Reset Timer: Th is field determines the number of seconds after alarm conditions clear before indications are removed. The defa ult is 30.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:53:04

------------------------------ ALARM CONFIGURATION ---------------------------

Errored Seconds (ES): (45 ) Remote Alarm Seconds (RAS): ( 0) Severely Errored Seconds (SES): ( 5) AIS Seconds (AISS): ( 0) Loss of Signal Seconds (LOSS): ( 5) Out of Frame Seconds (OOFS): ( 5) Unavailable Seconds (UAS): ( 0) BPV Seconds (BPVS): ( 0)

DTE LOS/OOF Seconds (LOSS): ( 0) Alarm Reset Timer (seconds): ( 30)

----------------------------------- Messages ---------------------------------

Figure 4-14 Alarm Configuration Screen

Terminal Operation 4-15PRISM 3021

ORT CONFIGURATION

The Port Configuration screen (Figure 4-15) sets the operating parameters for the high-speed port. The unit does not allow conflicting configurations for the DTE ports. Therefore, the selections for each menu item are restricted to those that do not conflict with the configuration of the other port. The default is all channels disabled

When channel assignment changes are made to the highspeed ports, the remote communication link, or the E1-DTE port, the 3021 reestablishes the mapping of all channels. This interruption to traffic normally results in a brief burst of data errors on other ports.

Channel Allocation: This display -only field indicates the network channel assignments with Chan nel 1 on the left and Channel 31 on the right.

Non-assigned idle channels are marked with a dash (-). Remote communication channels are marked with an R. Port numbers are used to represent channels assigned to the port. When channels are assigned to a port in th e Alte rn ate assign-

ment mode (see DS0 Channel Assignment below), each data channel is followed by an idle channel that is not assignable for other ports and is marked with an X.

E1-DTE channels are shown with a D.

Channel 0 is always reserved for framing and does not appear on the screen. Channel 16 is an S for signaling if CAS framing is selected. If CAS is not selected, channel 16 is available for other use.

Port #: The port number is always ONE. Port Type: This field shows the type of DTE port: V.35 or

EIA-530. This field is controlled by the hardware. Rate Multiplier: The unit can operate at any data rate that

is a multiple of 56 or 64 kbps. When Nx64K is selected, the ones-density requirements of the E1 network line must be ensured. When N x 56K

is selected, the unit maintains ones

density for the selected DS0 channel. DS0 Channel Assignment: This field selects whether the

DTE channel assignment are made as a Contiguous

group or as Alternate channels. Selecting Alternate assures ones density but reduces the available bandwidth from 1.984 kbps to 1.024 kbps.

Start Channel #: The starting channel in the 32-channel bit stream must be selected in this field. The unit then assigns the following channels automatically according to the bit rate multiplier and the mode selected in DS0 Chan nel Assignment. The choices are 1

through 31.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:53:19

--------------------------- PRISM Port Configuration -------------------------

Channel Allocation: 1111111 DDDDDDDD SDDDDDDD DDDDDDDD

Port # [ONE ] Port Type: V.35 LL Detect : [Disable] Rate Mult: [N x 64k] RL Detect : [Disable] DS0 Ch. Assign: [Contiguous] V.54 Loop : [Enable ] Invert Data: [No ] Start Ch. #: ( 1) CTS Control: [Force True ] Port Rate: [448 kHz ] DSR Control: [Force True ] # of Channels: 7 DCD Control: [Force True ]

Tx Clock: [Internal ] Alarm On DTR Loss: [Disable]

----------------------------------- Messages ---------------------------------

4-16 Terminal Operation

Figure 4-15 Port Parameters Screen

PRISM 3021

Port Rate: Pressing the spacebar increases the required port bit rate in increments of 56 or 64 kbps, depending on the Rate Multiplier setting. Th e N multiplier ranges in value

to 31.

from 0 # of Channels: This field displays the number of channels

to be passed through to the DTE. The number is determined by the Port Rate value divided by the Rate Multiplier. The default is 0

Tr a n s m i t C l o c k : This field is used to select the clock that the unit uses to sample the data transmitted from the DTE. When set to Internal and sampled directly with the tran smit data clock that is also supplied to the DTE as Transmit Clock . The Ext ernal op tion uses the external clock supplied by DTE.

LL (Local Loop) Detect: This field allows enabling or disabling pin J (V.35) or pin 18 (EIA - 530) to loop up the near (local) unit. The default is Disable

RL (Remote Loop) Detect: This field allows enabling or disabling the monitoring of pin BB (V.35) or pin 21 (EIA-

530) to loop up the far unit. The default is Disable V.54 Loop: Selecting Enable

inband V.54 loop commands. If Disable is selected, the unit ignores these commands.

Invert Data: In the invert mode (Yes), transmit and receive data are inverted at the port interface. This function may be used as a means of guaranteeing ones density when the data is composed of SDLC-type protocols. The choices are Yes and No

CTS /DSR/DCD Control: Setting any of these three fields to Force True control lead output state. Internal allows for normal operation.

Alarm on DTR Loss: Selecting Enable allows the unit t o go into alarm on loss of DTR. The default setting is Disable

, the data is automatically edge-aligned

allows the unit to respond to

or Force False allows the forcing of the port

Terminal Operation 4-17PRISM 3021

ANAGEMENT PORTS

The Management Ports screen (Figure 4-16) sets the following parameters for the Call On Alarm (COA) connection on the SUPV port.

Element ID: This field allows the entry of an ASCII string (up to 29 characters long) which identifies the unit to the device receiving the alarm notification messages.

Call on alarm messages are reported in the following format in the Dial or Direct modes only:

Element ID HH:MM:SS MM/DD/YY <CR> <LF> NET Alarms: alarms <CR> <LF> DTE Alarms: alarms <CR> <LF> where (alarms) is a string consisting of some or all of the

identifiers LOS, OOF, RAS, AIS, UAS, ERRS, or NONE. The following is an example:

Joesunit 17:24:55 08/04/93 NET Alarms: LOS AIS ERRS DTE Alarms: LOS Port1 The user-programmable Element ID string is transmitted

first to allow the COA function to send a message with a specific meaning to some host (such as a log-on message).

The identifier ERRS represents an alarm that is caused by ES, SES, and/or BPV errors.

COA Connection: This field controls the remote alarm reporting. The ASCII alarm report type is set by the following choices:

DISABLED

- Alarm reportin g is disabled.

DIAL - Sends reports through an attached AT command set compatible modem connected to the SUPV serial port, which must dial out to a remote modem. The message format is described in the Element ID field.

DIRECT - Sends reports to a printer or terminal connected directly to the supervisory port.

Primary Dial String, Secondary Dial String: These fields are ASCII strings for the primary and secondary call on alarm phone numbers used in the DIAL mode. The strings must include the ATDT command prefix.

The unit makes three attempts to connect using the primary number. If all three attempts fail, the unit makes three attempts to connect using the secondary number (if it is not blank). If the secondary number fails, the unit waits five minutes and then attempts to communicate using the primary number again. When a connection is detected, the unit outputs the notification message and disconnects.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:53:40

------------------------------- Management Ports -----------------------------

Element ID - ( )

------------------------------- Supervisory Port -----------------------------

COA Connection - (DISABLED) Primary Phone - ( ) Secondary Phone - ( ) Initialization String - (ATEQ0V1 ) Hang Up - (ATH )

----------------------------------- Messages ---------------------------------

4-18 Terminal Operation

Figure 4-16 Management Ports Screen

PRISM 3021

Initialization String: The modem initialization string is entered in this field. Refer to the modem’s documentation for further information. The default setting is

ATEQ0V1

Disconnect String: This field identifies the character string to be output when the modem session is terminated. The default setting is

ATH

UMMARY

The Summary screen (Figure 4-17) is a display-only screen that summarizes all the configuration switch settings in the left column. For definitions of the switch settings, refer to Unit Configuration on page 2 -1. Other pertinent information is shown in the right column.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 03/15/96 No Far End Response Time: 13:54:00

------------------------------------ SUMMARY ---------------------------------

(S1:1) Net Framing: CAS Serial Num: 001199 (S1:2) Net CRC4 Enabled (S1:3) Net Coding: HDB3 (S1:4-5) Timing Source: Network (S1:6) Keep Alive: Unframed (S1:7) Data : Normal (S1:8) Prgm Flash: Disabled (S2:1-8) HDW Address: #x0 (S3:1-2) NMS Port Rate: 19200 ------ Unit Options ------ (S3:3-4) Supv Port Rate: 38400 Port 1: V.35 (S3:5-6) Boot Mode: Switches Port 1 Rate: 0 kHz (S3:7) Port Mult: Nx64 (S3:8) Assignment: Altern Option Card: E1-DTE (S4:1-5) N-Select: 0 (S4:1) DTE CRC4: Enabled (Rot SW1) National Bits: None (S4:2) DTE LineCode: HDB3 (3-pos) TestLoop: No -Loop (S4:3-7) DTE Spare: (S4:8) DTE Ohms: 75

----------------------------------- Messages ---------------------------------

Figure 4-17 Summary Screen

Terminal Operation 4-19PRISM 3021

Utilities

The Utilities screen (Figure 4-18) handles the functions described in the following paragraphs.

ET TIME

The current time may be entered in this field using the 24 -

hour HH:MM: SS format. For example, 3:45 a.m. is entered

as 0345 and 3:45 p.m. is entered as 1545.

ET DATE

The current date in the may be entered in this field using the MM : DD : YY format. For example, July 4, 1993 is entered as 070493.

ATE FORMAT

This fields allows selecting an International or Standard date format. International dates are displayed with the year, month, then day. Standard dates are displayed with the month, day, then year. This setting activates after exiting and re-entering the terminal session.

EW PASSWORD

This field allows entry of a password of up to 10 characters. An empty string (ENTER key only) may be entered to disable the password feature. After ENTER is pressed, the new password is activated and is no longer visible. Therefore, type carefully when entering a new password and verify before pressing ENTER. When the terminal interface is exited and later reactivated, this password must be entered exactly to gain access. If the wrong password is entered, the following message appears:

Incorrect Password; Please Enter Again.

Do not exit the terminal inter face pro-

gram until the password procedure is fully understood. If a password has been specified, it must be typed exactly to reenter the program.

If a password is programmed and later forgotten, contact TxPORT Technical Support for a one-time backdoor password. Prior written approval must be sent to TxPORT before the password can be issued.

The reset operation sets all parameters to the factory default settings and zeros all performance registers.

3021 DSU 1.00/1.01 P R I S M 3 0 2 1 Date: 1997-03-21 No Far End Response Time: 13:54:16

----------------------------------- UTILITIES --------------------------------

Set Time: (13:54:13) (hh:mm:ss) Set Date: (03/15/96) (mm/dd/yy) Date Format: [International]

New Password: ( )

(MAINTENANCE RESET) (FACTORY RESET)

----------------------------------- Messages ---------------------------------

4-20 Terminal Operation

Figure 4-18 Utilities Screen

PRISM 3021

AINTENANCE RESET

This field clears all user-selectable parameters, performance registers, passwords, and alarms. All alarm threshold parameters are set to default values. These settings are then written to non-volatile memory as the saved configuration.

Pressing ENTER on this field brings up the following warning:

DELETE ALL DATA AND REST AR T UNIT?

(NO!) (YES)

ACTORY RESET

Factory Reset removes all memory including the IP Address.

To exit this screen without performing the reset function, press ENTER with NO selected. To proceed with the reset function, move the cursor to YES and press ENTER.

Terminal Operation 4-21PRISM 3021

4-22 Terminal Operation

PRISM 3021

A.Flash PROM Download Procedure

This appendix is a step-by-step procedure for downloading the Flash PROM software for the PRISM 3021.

Required Equipment

The following equipment is required to perform the download procedure.

• PC with at least one available RS-232 serial (COM) port.

• A diskette containing the download.exe program.

• A diskette containing one or more hexadecimal files to be

downloaded to the unit (these files ha v e a .

Throughout this manual, all factory default settings ar e show n under l in ed

PC Setup

(see Boot Mode on page 2-4) and zeros all performance registers. Refer to the unit’s configuration guide noting current settings before performing this procedure.

1. Power up the PC and create a directory structure to contain the program files. Creating a new directory, such as c:\hex or c:\download, is recommended.

2. Copy all the files on the supplied diskette to the destination directory noti ng the complete file na mes of all hex files, such as 0026-214.hex.

This operation sets all parameters according to the boot mode switches

extension).

hex

3. Select the download.exe file. The TxPORT FLASH

Loader main screen is displayed (Figure A-1).

4. Select 3021 at Device Type using the arrow keys to highlight the field and the spacebar to toggle through the list of available products.

5. Select the Download Method as either Switched Messaged. Switched requires setting switches to place the unit in a download mode. Messaged places the unit in a download mode through a message transmitted from the download program.

6. Select the PC serial communications port to be used for the download procedure. The choices are Com1 Com3, and Com4.

7. Select the baud rate for configuring the communication program. The valid choices for the 3021 are 19200, 38400

, and 57600 (see Upgrading Software on page 3-2). The LOC position permits download at 19200 bps. The middle position permits download at 38400 bps. The F A R position perm its download at 57600 bps.

The FAR/LOC switch only controls the SUPV port rate for downloading softwa re for the unit’s Flash PROM. Setting the SUPV port rate for terminal operation is done by hardware (see SUPV Port Rate on page 2-3).

8. Enter the hex file to be downloaded. When the Device Type was selected, the program automatically per-

, Com2,

TxPORT FLASH Loader Time: HH:MM:SS

Device Type: [Generic] Download Method: [Switched] ComPort [Com1] Baud Rate: [19200]

Hex Filename: [0026-214.hex]

Help

Utilities

Download

Exit

MESSAGES

Figure A-1 TxPORT FLASH Loader Screen

Date: MM/DD/YY Rev: X.X

Flash PROM Download A-1PRISM 3021

formed a look-up for existing app licable hex files in the local directory. If a file is found, it is displayed in this field. This filename can be accepted or another may be entered.

9. In Swtched mode (step 5 above), verify that the 3021 has Switch S1-8 is in the Up position (see Program Flash on page 2-3) and the front panel FAR/LOC switch is set to match the rate selected in step 7. P ower restart the unit with the correct switches.

10. Connect the PC serial COM port to the SUPV port of the 3021 with a DB-25 to 6-pin modular cable assembly (P/N 9- 1001 -028 -2). If the COM port has 9 pins, use a 9 -pin to 6-pin modular cable assembly (P/N 91001-025 -2).

11. From the Flash Loader screen, select the Help option and follow the instructions for configuring the baud rate. This operation is different for each device type so read the instructions carefully. If the baud rate cannot be successfully configured, contact TxPORT Technical Support.

12. T he Utilities optio n is used for saving and restoring t he configuration paramete r s fo r th e 810 0A Si t e Co nt rol le r.

13. Select the Download option and press ENTER for the download process to begin.

The actual downloading procedure

overwrites the existing program in Flash. Ensure that the a ppropriate file name is selected before pressing ENTER on the Download option. Do not remove power or interrupt the download process in any manner. This can cause the unit to lose its serial and hardware revision numbers that can only be reinstalled at the factory.

The process of erasing the Flash may last a couple of minutes. The PC message line indicates the current number of records sent:

14. Once the Flash is erased, the program begins counting the current number of data blocks being uploaded. This process takes a few minutes to complete.

Records Sent: ----

Percent Sent: --%

15. After the software is downloaded to the unit, the PC beeps to indicate completion. Most units automatically reset. Units requiring manual switch settings to enter the download mode must have their switches manually reset to the correct operating positions.

Do not remove power until the LEDs stop flashing.

16. When all files have been downloaded, a factory default maintenance reset operation is recommended (see Maintenance Reset on page 4-21). This can be performed through the unit’s terminal interface start-up procedure (see Interface Start-up on page 4-3).

Records Sent: --

If the entered filename does not exist in the local directory, the following error message appears:

Cannot find file ---Upload aborted, press a key to continue

A-2 Flash PROM Download

PRISM 3021

TRANSPORT

Document: Date:

PRISM 3021 E1 NTU/DSU Reference Manual, 1st Edition, February 1997 February 11, 1998

Addendum

Changes

Page 1-4, Table 1- B, Optional Equipment, section E1-DTE Cables and Adapters:

Part number 9-1001-096-2, 120should read 9-1001-106-xxx, 120-

Part number 9-1001-097-2, 75should read 9-1001-105-xxx, 75-

Ω twinax to RJ- 48 adapter

Ω twinax to RJ-48.

Ω BNC to RJ-48 adapter Ω BNC to RJ-48.

34-00262-A1.01

Verilink PRISM 3021 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual