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PRISM 3001

FT1/T1

CSU/DSU

TRANSPORT

34-00186

February 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 o f TxPORT.

Reorder # 34 - 00186

5th Edition, February 1998

TxPORT shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. TxPORT reserves the right to revise this publication from time 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 disc laims any implied warranties of me rchantabilit y or fitness for any partic ular purpose.

Table of Contents

1 General

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

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

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

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

Equipment Interface . . . . . . . . . . . . . . . . . . . . . . . 1-3

User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Industry Listings . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

FCC Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Canadian Emissions Requirements . . . . . . . . . . . . . . . . 1-6

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Ordering Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

TxPORT Customer Service . . . . . . . . . . . . . . . . . . . . . 1-9

Product Technical Support . . . . . . . . . . . . . . . . . . 1-9

Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

2 Installation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

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

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

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

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

Stand-alone Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Chassis Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

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

Configuration Switch S4 . . . . . . . . . . . . . . . . . . . 2-3

Network Framing . . . . . . . . . . . . . . . . . . . . . 2-3

Network Coding . . . . . . . . . . . . . . . . . . . . . . . 2-4

Network LBO . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Bit Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

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

Address Switch S5 . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Configuration Switch S6 . . . . . . . . . . . . . . . . . . . 2-5

NMS Bit Rate . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Supervisory Port Bit Rate . . . . . . . . . . . . . . 2-6

Boot Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Boot from switch settings . . . . . . . . . . . . 2-6

Boot from RAM . . . . . . . . . . . . . . . . . . . 2-6

Boot from manager . . . . . . . . . . . . . . . . . 2-6

Boot from ROM . . . . . . . . . . . . . . . . . . . 2-6

Rate Multiplier . . . . . . . . . . . . . . . . . . . . . . . . 2-7

S6-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Rotary Switch S7 . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

T1 DTE Switch S8 . . . . . . . . . . . . . . . . . . . . . . . .2-8

T1 DTE Line Framing . . . . . . . . . . . . . . . . .2-8

T1 DTE Line Coding . . . . . . . . . . . . . . . . . .2-8

T1 TE LBO . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Supervisory Port Connection . . . . . . . . . . . . . . . . . . . . . 2-9

High-speed Port Connection . . . . . . . . . . . . . . . . . . . . .2-9

NMS Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

SUPV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

NMS IN/OUT . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10

NMS Split Cable . . . . . . . . . . . . . . . . . . . . . . . . .2-11

NMS IN Only . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11

Chassis Operation . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

T1 DTE Port Connection . . . . . . . . . . . . . . . . . . . . . .2-12

Network Connection . . . . . . . . . . . . . . . . . . . . . . . . . .2-12

Disconnection Notice: . . . . . . . . . . . . . . . . . . . . .2-13

NET/External Clock Connection . . . . . . . . . . . . . . . .2-13

Alarm Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Stand-alone Unit . . . . . . . . . . . . . . . . . . . . . . . . .2-13

Chassis Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14

Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Stand-alone Unit . . . . . . . . . . . . . . . . . . . . . . . . .2-14

Chassis Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15

Redundant Power Source . . . . . . . . . . . . . . . . . . .2-15

Single Power Source . . . . . . . . . . . . . . . . . . . . . . .2-15

Dual Power Source . . . . . . . . . . . . . . . . . . . . . . . .2-15

3 Operation

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

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

General Status Indicators . . . . . . . . . . . . . . . . . . . .3-1

Alarm Controls and Indicators . . . . . . . . . . . . . . . 3-2

Test Controls and Indicators . . . . . . . . . . . . . . . . . 3-2

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

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

Test Access Jacks . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

BERT Pattern Select . . . . . . . . . . . . . . . . . . . . . . . .3-4

Supervisory Port . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

4 Terminal Operation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Modem Compatibility . . . . . . . . . . . . . . . . . . . . . . .4-1

Screen Components . . . . . . . . . . . . . . . . . . . . . . . .4-2

Device Type and Revision . . . . . . . . . . . . . . . . . . .4-2

Date/Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Element ID/Unit Address . . . . . . . . . . . . . . . . . . . .4-2

Menu Title . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

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

iii

Interface Start Up . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Cursor Contros . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Field Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Main Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Alarms Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

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

NET/DTE Alarms . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

(alarm status): . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Power Loss Seconds . . . . . . . . . . . . . . . . . . . . . . . .4-6

Reset Alarm Registers . . . . . . . . . . . . . . . . . . . . . . .4-6

Performance Screens . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

USER NET . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

USER DTE . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

TELCO NET . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

TELCO DTE . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Error Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Reset Performance Registers . . . . . . . . . . . . . . . . . .4-8

Standard 24 Hour . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Completed Days . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Completed Intervals . . . . . . . . . . . . . . . . . . . . . . . . .4-8

24 Hr.% Error Free . . . . . . . . . . . . . . . . . . . . . . . . .4-8

(performance data) . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Maintenance Screen . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Clear Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Clear Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Test Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

T1 Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

T1 Unloop . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

Port Unloop . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Bit Error Rate Testing (BERT) . . . . . . . . . . . . . .4-13

BERT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Test Length . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Start Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Reset Errors . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Pattern Sync . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Elapsed Time . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Bit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13

Errored Seconds . . . . . . . . . . . . . . . . . . . . . . .4-14

% EFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Line Fault and Loop Status . . . . . . . . . . . . . . . . .4-14

NET/DTE Status . . . . . . . . . . . . . . . . . . . . . .4-14

Near Loops . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Far Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Configuration Screens . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Line Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

T1-NET Framing . . . . . . . . . . . . . . . . . . . . . .4-15

T1-NET Line Code . . . . . . . . . . . . . . . . . . . .4-15

T1-NET LBO . . . . . . . . . . . . . . . . . . . . . . . . .4-15

PRM Enable . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Zero Suppression . . . . . . . . . . . . . . . . . . . . . .4-15

T1-NET Timing . . . . . . . . . . . . . . . . . . . . . . .4-15

INTERNAL . . . . . . . . . . . . . . . . . . . . . . 4-15

T1 DTE . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

PORT 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

NETWORK . . . . . . . . . . . . . . . . . . . . . . 4-16

STATION . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Station Timing . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Remote Comm Channel . . . . . . . . . . . . . . . .4-16

T1-DTE Framing . . . . . . . . . . . . . . . . . . . . .4-16

T1-DTE Line Code . . . . . . . . . . . . . . . . . . . .4-16

T1-DTE DSX Level . . . . . . . . . . . . . . . . . . . 4-16

D/I Start Channel . . . . . . . . . . . . . . . . . . . . . 4-16

# of Channels . . . . . . . . . . . . . . . . . . . . . . . . .4-17

Channel Allocation . . . . . . . . . . . . . . . . . . . . 4-17

Alarm Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Errored Seconds . . . . . . . . . . . . . . . . . . . . . .4-17

Severely Errored Seconds . . . . . . . . . . . . . . .4-17

Loss of Signal Seconds . . . . . . . . . . . . . . . . . 4-17

Unavailable Seconds . . . . . . . . . . . . . . . . . . . 4-17

DTE LOS/LOF Seconds . . . . . . . . . . . . . . . . 4-18

Remote Alarm Seconds . . . . . . . . . . . . . . . . .4-18

AIS Seconds . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Out of Frame Seconds . . . . . . . . . . . . . . . . . . 4-18

BPV Seconds . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Alarm Reset Timer . . . . . . . . . . . . . . . . . . . . 4-18

Port Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19

Channel Allocation . . . . . . . . . . . . . . . . . . . . 4-19

Port # . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Rate Multiplier . . . . . . . . . . . . . . . . . . . . . . . 4-19

DS0 Channel Assignment . . . . . . . . . . . . . . . 4-19

Start Channel # . . . . . . . . . . . . . . . . . . . . . . .4-19

Port Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

# of Channels . . . . . . . . . . . . . . . . . . . . . . . . .4-20

Transmit Clock . . . . . . . . . . . . . . . . . . . . . . .4-20

V.54 Loop . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20

Invert Data . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20

CTS,DSR, and DCD Control . . . . . . . . . . . .4-20

Utilities Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Set Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Set Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

Alarm Notification . . . . . . . . . . . . . . . . . . . . . . . . 4-21

OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

DIRECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

DIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

DIAL NMS . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

Primary Phone#, Secondary Phone# . . . . . . . . . . 4-21

Element ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

New Password . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Maintenance Reset . . . . . . . . . . . . . . . . . . . . . . . . 4-22

ENERAL

Introduction

The TxPORT PRISM 3001 (Figure 1-1) is a modular, single port, fractional T1 CSU / DSU. The unit allows connection of high-speed digital data to a T1 facili ty. V.35- or EIA530compatible high-speed port interfaces are available which support port rates from 56 kbps to

1.536 Mbps. The interface to the T 1 network is made through an integral ESF CSU which provides full performance monitoring of the T1 span and is co mplian t with T1.403, TR62411, and TR54016.

3001

ESF CSU/DSU

ACO

ACO SW

V.35

BV/CR/FE

LOS/OOF

RTS

AIS

DTR

E T

REM ALM LOC ALM

LLB PLB

FLB

S T

TST

ERR

LOCFAR

PAT SEL

Figure 1-1 PRISM 3001 Stand-alone

The unit is available with a second DSX1 level T1 interface to support drop and insert applications. Network bandwidth may be allocated as needed between the high-speed data port and the T1 DTE port, allowing the integration of data and voice traffic across a sin gle T1 facility.

The TxPORT PRISM 3001 provides the powerful feature set of the multiport TxPORT PRISM 3000 in one of the most compact packages in the industry. The 3001 module can be installed in either a single unit housing or in the 1051- 2 nest mount chassis which holds up to twelve units. Power supplies are available to meet the requirements of small to large installations, including full redundancy.

1-2 GENERAL

Features

The unit may be controlled through a VT100 terminal or a computer with ANSI terminal emulation software. If used with the EM8000 Element Manager or 8100A Site Controller, the entire T1 network can be monitored and controlled from a central location.

LED indicators are provided on the front panel of the unit to alert local personnel of alarm conditions, loop and test status, and DTE port activity. A test switch allows local and remote loops to be activated as well as BERT tests. Although all configuration parameters are software selectable from the terminal interface or the network manager, configuration switches are provided on the unit to allow operation without the use of a management interface.

✦ Stand - alone housing or chassis nest mounting ✦ Integral full function D4/ ESF CSU ✦ Multiple loopback functions including BERT test patterns and in-band

fractional loops

✦ Selectable facility ALBO levels an d DTE DSX levels

Specifications

Network

Interface

✦ Flash memory allowing field upgrades of firmware ✦ Selectable alarms, programmable alarm parameters and monitoring, and isolated

alarm relay contacts

✦ High-speed data port supporting both internal and external clocking ✦ Thirty day storage of T1 line performance information ✦ Optional EM8000 Element Manager and 8100A Site Controller

Line Rate: 1.544 Mbps , ± 50 ppm Line Framing: D4 or ESF Line Code: AMI or B8ZS Input Signal: DS1, 0 to - 27 dB ALBO Connection: RJ-48C modular jack (100 Ω, ± 5 %) or termina l block Output Signal: DS1, 3.0 V (± 10%) base-peak into 100 Ω with protection Line Build Out: 0, -7.5, -15, and -22.5 dB attenuation Line Protection: 1000 V lightning, fused input and output Jitter Control: per TR62411 and T1.403 Pulse Density: 15 or 175 zeros Timing Source: Internal, recovered line clock, station clock, external DTE

Specifications

1-3

Equipment

Interface

User

Interface

T1 DTE port: optional Line Rate : 1.544 Mbps, ± 50 pp m Line Framing: D4 or ESF Line Code: AMI or B8ZS Input Signal: DSX1 to - 6 dB Connection: RJ-48C modular jack (100

Ω,

± 5%)

Output Signal: Selectable DSX1 level from 0 to 655 feet in six

increments

high-speed data EIA-530 (RS-422), female DB-25 port compatibility: ITU V.35, female DB-25, and female

34 - pin through adapter cable Data Rate: Synchronous, N×56 or N×64 kbps (N = 1 to 24) Clocking: Internal or external Data Invert: Enable or disabl e

Supervisory port: RS-232 6 - pin modular connector, 1200 to 19200 baud Element Manager

Site Controller: RS-232 6 - pin modular connector, 1200 to 19200 baud (In

and Out)

Diagnostics Performance: TR54016 and T1.403 monitoring

T1 Interface Loops: Line loopback or payload loopback Fractional Loop: high-speed bidirectional port loop responds to in-band V.54

loop code T1 DTE Loops: Loop toward DTE or network BERT: Multiple test patterns toward network or DTE ports

Alarms Activation: Programmable thresholds

Reporting: Front panel LEDs, COA, NO / NC contacts, the EM8000 Element Manager, and 8100A Site Controller

Contact Ratings: UL 0.3 A at 110 VAC

1.0 A at 30 VDC

Connection: Terminal block

Power DC Power: - 48 VDC (±10%), 165 mA max, 8 watts, 27 BTU maximum

Connection: Terminal block

1-4 GENERAL

Mechanical

Environmental

Compatibility

Stand-alone: Mounting: desktop, wall, horizontal or vertical rack, and

vertical nest mount

Dimensions: 1.75" (4.45 cm) wide, 7" (17.78 cm) high,

10.5" (26.67 cm) deep

Weight: 3 pounds, 7 ounces (1.56 kg)

Chassis: Mounting: 19" or 23" rack

Dimensions: 19" (48.3 cm) wide, 7" (17.8 cm) high,

10.5" (26.7 cm) deep

Weight: 3 pounds, 7 ounces (1.56 kg)

Operating Temp: 0° to 50°C (32° to 122°F) Storage Temp: - 20° to 85°C (- 4° to 185°F) Humidity: 95% m ax (non - condensing)

TR62411: December, 1990 TR54016: September, 1989 TR54019A: April, 1988 T1.403: 1989

Industry

Listings

FCC Requirements

FCC Compliance: Part 15 Subpart B, Class A, Part 68 US Safety: UL 1459, 2nd Edition Canadian Safety: CSA C222, No. 225-M90 Industry Canada: CS-03

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 complies with Part 15 of the FCC rules. 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.

FCC Requir ements

1-5

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of 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 residential area is likely to cause harmful interference. The user will be required to correct the interference at his own expense.

Shielded cables must be used with this unit to ensure compliance with the Class A

FCC limits.

Notice to Users of 1.544 Mbps Service:

The following instructions are provided

to ensure compliance with FCC Rules, Part 68:

All direct connections to T1 lines must be made using standard plugs and jacks.

Before connecting your unit, you must inform the local telephone company of the

following information:

Port ID: P / N / 12 - 00635 REN / SOC (Service Order Code): 6.0 N FIC (Facili ty Interface Code): 04DU9 -B N

04DU9 - DN 04DU9 - IKN 04DU9 - ISN

USOC jack: RJ-48C

If the unit appears to be malfunctioning, it should be disconnected from the

telephone lines until you learn whether the source of trouble is your equipment or the telephone line. If your equipment needs repair, it should not be reconnected until it is repaired.

The unit has been designed to prevent harm to the T1 network. If the telephone

company finds that the e quipment is excee ding tolerab le parameters, th ey can temporarily disconnect service. In this case, the telephone company will give you advance notice, if possible.

Under FCC rules, no customer is authori zed to re pair this equipmen t. This

restriction applies regardless of whether the equipment is in or out of warranty. If the telepho ne comp any alters their equipme nt in a ma nner that wil l affect the u se

of this device, they must give you advance warning so that you can have the opportunity for uninterrupted service. You will be advised of your right to file a complaint with the FCC.

The attached affidavit must be completed by the installer.

In the event of equipment malfunction, all repairs should be performed by our

company or an authorized agent. It is the responsibility of users requiring service to report the need for service to our company or to one of our authorized agents.

1-6 GENERAL

Canadian Emissions Requirements

Warranty

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.

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.

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 user’s 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 del ivery on return. The c ustomer is res ponsible fo r mode and cost o f 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.

When returning the unit for warranty work, a Return Material Authorization (RMA) number must be obtained from customer service at the address / phone number given below. When calling TxPORT to obtain a Return Material Authorization number or to arrange service, please have the following information availab le :

✦ Model number(s) and serial number(s) for the unit(s). ✦ Reason for return and symptoms of problem. ✦ Wa rranty status (i f known). ✦ Purchase order 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). As soon as TxP ORT has the above informatio n, the RMA that must accompa ny

the item(s) returned can be issued.

Ordering Numbers

1-7

Ordering Numbers

This unit is shipped from the factory with the PRISM 3001 reference manual. The part numbers for the stand- alone unit and the modular chassis unit are shown in Table 1 - 1.

Ta b l e 1 - 1

Part Number Description

F-3001-1

PRISM 3001 Options

0-1B0

1-1B0DE0

PRISM 3001 stan d -alone u nit

Test jacks

No test jacks

Bantam jacks Special option

Standard unit

RS- 423 station clock input

Bidirectional loop DTE port option

V.35

EIA-530 DSX T1 DTE option

Not installed

DSX T1 DTE port PRISM 3001 m odule ( chassis ) Test jacks

No test jacks

Bantam jacks

Special option

Standard unit

RS- 423 station clock input

Bidirectional loop DTE port option

V.35

EIA-530 DSX T1 DTE option

Not installed

DSX T1 DTE port

1-8 GENERAL

The following opti onal accessorie s may also be nee ded for the inst allation and operation of the TxPORT PRISM 3001.

Ta b l e 1 - 2

Part Number Description

NET / T1 DTE Cables 9 - 1001 - 004 8 - pin mod to 8- pin mod (4 twisted pairs) 9 - 1001 - 051 - 1 T1 cross-over kit, 1 ft 9 - 1001 - 006 - 1

9 - 1001 - 006 - 2 Supervisory Cabl es 9 - 1001- 027 - 1

9 - 1001- 027 - 2 9 - 1001 - 028-1

9 - 1001 - 028-2 9 - 1001 -029-2 DB-9 female to 6 -pin RJ-11 (terminal to SUPV) 9 - 1001 -048 -1

9 - 1001 -048 -2 V.35 Cables 9 - 1001 -001 V. 35 male to male null cable 9 - 1001 - 311 V.35 male to male cable 9 - 1001 - 312 V.35 male to female cable EIA-530 Cables 9 - 1001 -51 1N EIA-530 male to male null cable 9 - 1001 - 511 EIA-530 male to male cable 9 - 1001 - 512 EIA-530 male to female cable RS-449 Cables 9 - 1564A - 037 - 1

9 - 1564A - 037 - 2 9 - 1564A -03 8 - 1 RS-449 to EIA-530 null cable, male to male Chassis Mount Kits F - 1051- 000 --112 1051-2 chassis (RJ- 48C) 9 - 2000- 001 -- 1

9 - 2000- 001 -- 2 9 - 2000- 002 -9 - 2000- 002 -- 2

F - 10 40 - 0 00 - -111 F - 10 40 - 0 00 - -112

F - 1200- 000 - -11 1200 power supply wit h redundant

30 - 00087 0.2 amp wall mount power supply Miscellaneous 9 - 8000 -001 -1

9 - 8000 -001 -2 9 - 1001 - 052-010

9 - 1001 - 053-010 9 - 1001 - 511 - 010 DB-25 male to DB-25 male, 1: 1 9 - 1001 - 522 - 010 DB-25 female to DB-25 female, 1: 1

Optional Equipment

8 - pin mod to 15 -pin D-ty pe adapter, male 8 - pin mod to 15 -pin D-ad apter, female

DB-25 male to 6 -pin RJ-11 (modem to SUPV) DB-25 female to 6 - pin RJ-11 (modem to SUPV)

DB-25 male to 6-pi n RJ-11 (termin al to SUPV) DB-25 female to 6 - pin RJ-11 (terminal to SUPV)

DB-25 male to two 6-pin RJ-11 (t erm. to NMS ) DB-25 female to 6 - pin RJ-11 (term. to NMS)

RS-449 male to EIA-530 male RS-449 male to EIA-530 female

19" single unit rack mount adapter 19" dual rack mount adapter 23" single unit rack mount adapter 23" dual rack mount adapter

Power supply shelf with single/ redundant -48 VDC, 2 A supply

- 48 VDC, 5 A with fuse panel

EM8000 with manual on 3½ inch disk (DOS and UNIX version, respectively)

DB-25 male to V.35 male DB-25 male to V.35 femal e

TxPORT Customer Service

1-9

TxPORT Customer Service

Product

Technical

Support

Acknowledgment

TxPORT 127 Jetplex Circle Madison, Alabama 35758

Telephone Numbers: 800 - 926 -0085 or

205 - 772 -3770

Sales / Administration FAX: 205 - 772 - 3388 Manufacturing FAX: 205- 772- 8280

Customer Service Returns: 800- 926- 0085, ext. 227

Normal Hours (8 a.m. to 5 p.m. Central Time, Monday through Friday)

800 - 285 - 2755 or 205 - 772 - 3770, ext. 255

Emergency (nights /weekends / holidays) Telephone: 800-285-2755

E - Mail (Internet Address): support@txport.com

The software used in the SNMP function of this product contains material derived from the following source:

Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/ or other materials provid ed with the dis tribution. All advertis ing materials mentioning features or use of this software must display the following acknowledgment:

This product includes software developed by the University of Califor nia, Berkeley and its contributors.

Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

This software is provided by the regents and contributors ‘as is’ and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the regents or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theor y of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.

1-10 GENERAL

NSTALLATION

Introduction

Safety Summary

Unpacking and Inspection

This chapter contains information and instructions required to prepare the TxPORT

PRISM 3001 for use. Included are initial inspection procedures, mounting instructions, configuration guidelines, connection instructions, and powering information.

Throughout this manual, all factory default settings are shown underlined.

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

The WARNING sign denotes a hazard to the operator. It calls attention to a procedure or practice which, 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 ESD (electrostatic discharge) procedures while handling the circuit boards.

This unit is carefully packaged to prevent damage in shipment. Upon receipt, inspect the shipping container for damage. If the shipping container or cushioning material is damaged, notify the carrier 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

If the contents of the shipment are incomplete or, if there is mechanical damage or defect, notify TxPORT. If the shipping container is also damaged, or the cushioning material shows signs of stress, notify the carrier of the damage as well as TxPORT. Keep the shipping materials for carrier’s inspection. TxPORT will arrange for repair or replacement without waiting for claim settlement.

The PRISM 3001 is shipped from the factory with the PRISM 3001 reference manual.

The following addi tional materia ls may be require d for the instal lation and operation of the PRISM 3001.

✦ - 48 VDC power source ✦ Network and DTE interface cables ✦ 20 - gauge stranded wire (or similar) for DC power and alarm connection

2-2 INSTALLATION

For specific applications, additional cables and adapters may be required. The interface requirements of any application may be met by using the appropriate cable. Contact TxPORT for any needed assistance in cable selection.

Mounting

Stand - alone

The 3001 is a modular unit that plugs into either a single unit housing or into a chassis that holds up to 12 units. Single units are designed for stand-alone desktop use, wall mounting, or chassis mounting (in either a vertical or horizontal orientation). The 3001 uses an interchangeable front panel to accommodate the chassis card cage.

To access the circuit boards and configuration switches, perform the following

Unit

procedure. Observe proper electrostatic device handling procedures while holding the circuit boards.

1 Open the front panel access door and remove it by gently bending the plastic from

the middle using both hands.

2 Pull the two side strips of plastic from the middle outwards until the four stops are

clear of the front panel.

3 Pull the cover off the front pane l. 4 Remove the two screws and pull the front panel and circuit boards out of the

housing. The stand-alone unit may be used in a chassis installation with the following

modifications.

Chassis

Assembly

Unit Configuration

1 Remove the housing as described above and then remove the four screws holding

the front panel to the circuit boards.

2 Replace the stand - alone front panel with a module type front panel.

The unit can now slide into one of the 12 slots in the chassis.

Up to twelve PRISM 3001 units may be inserted into a chassis and the chassis may be installed into a 19- or 23-inch rack using four screws. Connections are made from the rear of the chassis (refer to the illustrations on page 2- 9).

The PRISM 3001 can be software configured in the same manner as the multiport PRISM 3000 by using a terminal connection to either the front panel Supervisory access port or the rear panel NMS IN port. The TxPORT EM8000 Element Manager and 8100A Site Controller may also be used to configure the unit by using the same ports. The terminal interface, element manager, and site controller provide a broader set of capabilities than by using the configuration switches.

The 3001 provides non- volatile memory retention of unit configuration in the event of power failure. Th is feature allows the unit to automatic ally resto re normal service following a power loss. Note, however, that when the unit is stored without power for an extended period, the battery may drain and some parameters may become corrupted.

Unit Configuration

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

S5 S4S6S7

2-3

Alarm

Figure 2-1

Top-edge View of PRISM 3001

Therefore , when the uni t is first received for instal lation or if power has not been applied for an extended period of time, the configuration should be verified using either the terminal interface, element manager, or site controller. The battery becomes fully charged after power has been applied for 160 hours.

Hardware swi tches on the side of the circ uit boar ds provide t he mean s to configur e most simple applications. These configuration switches are described in the following paragraphs. When power is applied to the unit, the front panel indicators flash for approximately 10 seconds as the unit executes a self-test function. If an ambiguous configuration has been programmed, the front panel indicators continue to flash after the self- test is completed. The configuration must then be reviewed to correct the error.

The unit is hardware configured using three DIP switches, a rotary switch, and two jumpers. All are located on the top edge of the circuit boards (refer to Figure 2-1 above). The front panel rotary switch selects BERT patterns and is described in the Operations chapter. The numbering system used for each switch position is as follows: Positio n 2 of Sw itch S4 is referred to as Swi tch S4- 2, and so on.

Before installation, verify each configuration switch setting. A removable configuration guide is included in the rear of this manual to record option selections for reference.

Configuration

Switch S4

Switch S4 is used to set the configuration parameters listed in the following paragraphs.

Network

Framing

Dn Up

Figure 2-2

Network

Coding

LBO

Switch S4

Network

LBO

Bit

Rates

Clock

Channel

Assignment

Clock

Source

7654321

Network Framing

Position S4- 1 is used to match the unit to the framing of the network line.

: ESF Up: D4

Down

2-4 INSTALLATION

Network Coding

Position S4- 2 sets the network line coding to AMI or B8ZS.

Down: AMI Up

:B8ZS

Network LBO

Positions S4-3 and S4 - 4 set the line build out signal level of the transmit data (TXD) from the unit to the network. The output level is factory set at 0 dB

. It may be attenuated by - 7.5 dB, -15 dB, or - 22.5 dB if operating conditions require that it be changed. The telco should provide the proper setting to the user.

If unsure of the exact settin g, then leave it at the d efault value. The values are listed in th e following table.

Ta b l e 2 - 1

S4-3 S4-4 Network LBO

Down

Up Down -7.5 dB Down Up -15.0 dB Up Up -22.5 dB

Network Line Build Out

Down 0 dB

Bit Rates

Position S4- 5 works in conjunction with rotary switch S7 to set bit rate configurations . Refer to Rota ry Swi tch S7 on pag e 2-7 fo r furt her inf ormati on. The missing rates are N×56 and N × 64, where N =15, 17, 21, and 23. All 24 rate configurations can be programmed through software control by using the NMS or SUPV ports.

Clock Source

Positions S4-6 and S4 -7 determine the source of unit clocking. The most common timing source for most CSU / DSU applications is to derive timing from the network. The 3001 may also be optioned to time from an internal standard, from the T1 DTE, or fro m the high-spee d data interface as shown in Table 2-2.

Ta b l e 2 - 2

S4 - 6 S4 -7 Timing Source

Down Down Internal Up Down Up T1 DTE Up Up high-speed port

Timing Source

Down Network

Channel Assignment

Position S4- 8 selects the channel assignment mode for network T1 DS0s that carry data to the high-speed port. Contiguous

assignment assigns the channels as a block beginning at channel one. For example, if the high-speed port data rate is to be 256 kbps (as defined by rotary switch S7 in on page 2-7) , the unit would assign network channels 1 through 4 to the high-speed port.

Unit Configuration

2-5

If the Alternate channel mode is selected, channel assignments are made with an idle channel following each data channel. For the above example, data would be carried on channels 1, 3, 5, and 7 and channels 2, 4, 6, and 8 would be set idle (set to binary code 01111111). The advantage of alternate channel assignment is that T1 ones de nsity req uirements a re maintain ed by the idle chann els rather that placing any restrictions on the high-speed data.

: Contiguous Up: Alternate

Down

Address

Switch S5

Switch S5 is used to set the unit address. When using the EM8000 Element Manager, 8100A Site Controller, or other network manager controlled products with the 3001, each element in a group must have a unique unit address. Up to 250 units (with addresses from 1 to 250) can exist in a group. If the unit is not connected to a network manager, the NMS unit address should be left at the factory default setting of 1

LSB MSBBinary values

1248163264128

Dn Up

00000000

Figure 2-3

Switch S5

7654321 8

Switch S5 has 8 positions used to create an 8-bit binary code for an address in the range of 1 to 252. Switch position S5-1 is the least significant bit (LSB) and S5-8 is the most significant bit (MSB). If a switch is down, its value is 0 and if it is up, its value is that of the upper location. The values are additive. For example, to set a unit address to five (5), position S5-3 (binary value = 4) and position S5-1 (binary value = 1) would be set Up for a unit address of 5 (4 + 1). All other positions would be set down.

Configuration

Switch S6

Switch S6 is used to set the configuration parameters listed in the following paragraphs.

NMS

SUPV

Rate

NMS

Figure 2-4

Rate

Switch S6

SUPV

Rate

Boot

Mode

Boot

Mode

Multiplier

Not used

7654321

2-6 INSTALLATION

NMS Bit Rate

Positions S6- 1 and S6- 2 are use d to set the NM S port bit rate. This is a serial RS-232 DCE port configured for 8 bits, no parity, and 1 stop bit. The table below shows the available speed s.

Ta b l e 2 - 3

S6-1 S6-2 NMS Port Bit Rate

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

NMS Port Bit Rate

Supervisory Port Bit Rate

Positions S6- 3 and S6 - 4 are used to set the supervisory port bit rate. This is a serial RS-232 DCE port configured for 8 bits, no parity, and 1 stop bit. Table 2-4 shows the available speed s.

Ta b l e 2 - 4

S6- 3 S6 -4 SUPV Port Rate

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

SUPV Port Rate

Down 19200 bps

Boot Mode

Positions S6- 5 and S6 - 6 are used to set the power up configuration mode as shown in Table 2-5.

Ta b l e 2 - 5

S6 - 5 S6 - 6 Power-up Mode

Down Up Down Boot from RAM Down Up Boot from manage r Up Up Boot from ROM

Boot from switch se ttings. Upon reset, the unit reads its configuration from all the

Boot Mode

Down Boot from switc h settings

hardware sw itch settings .

Boot from RAM. Upon reset, the unit reads its configuration from the internal,

battery-backed RAM.

Boot from ma nager. Upon reset, the unit requests configuration information from

the manager. If the manager is not on- line, the unit boots from RAM.

Boot from ROM. Upon reset, the unit reads its configuration from the internal

ROM. The ROM factory default settings are as follows.

Unit Configuration

NET Framing: ESF DTE Framing: ESF NET Line Code: AMI DTE Line Code: AMI Timing: Internal NET LBO: 0 dB DTE DSX level: 0 - 110 feet PRM Enable: Disabled Zero Suppression: Enabled high-speed Port: Disabled

2-7

Rate Multiplier

Position S6- 7 is used to set the multiplier for the input timing. The unit can operate at any data rate that is a multiple of 56 or 64 kbps. Selecting N

64K

provides port bit rates that are multiples of 64 kbps. The ones density requirements of the T1 network line must be ensured in this mode. Selecting N

56K allows port

bit rates that are multiples of 56 kbps. The unit maintains ones density for the selected DS0 channel in this mode.

:N×64K Up: N×56K

Down

Rotary

Switch S7

S6-8

This switch is not used.

This 10 - position rotary switch works in conjunction with S6-7 and S4-8 to select high-speed port bit rates. Switch S6- 7 selects the rate multiplier as either N

56 (refer to Rat e Multiplier in th e previous paragrap h).

Switch S4 -8 selects either the Contiguous

or Alternate mo de for the ne twork DS0s

64 or

to carry data (refer to Channel Assignment in Configuration Switch S4 on page 2 - 3). S witch S4 -5 is used to sele ct the bit rate s as shown in Table 2-6.

Ta b l e 2 - 6

Switch S7

0 56 64 168 192 1 112 128 280 320 2 224 256 392 448 3 336 384 448 512 4 560 640 504 576 5 672 768 616 704 6 1008 1152 728 832 7 1120 1280 784 896 8 1232 1408 896 1024 9 1344 1536

High-speed Port Bit Rates

w/ S4 -5 down ×56 ×64 ×56 ×64

w/S4-5 up

1064 1216

2-8 INSTALLATION

20 out of the 24 possible bit rate configurations are available through these hardware settings. The missing rates are N

×56 and N×64, where N = 15, 17, 21,

and 23. All 24 rate configurations can be programmed through software control by using the NMS or supervisory ports. The terminal interface program also allows the high-speed port to be mapped to a block of DS0s that begins at a userselectable starting channel.

For units equipped with the T1 DTE port option, channel numbers beyond those assigned to the high-speed port are automatically mapped through to the T1 DTE. In the alternate channel mode, every data channel is followed by an idle channel assignment. Therefore, the even channels are quiet and are not available to the T1 DTE port.

T1 DTE

Switch S8

The optional T1 DTE port circuit board allows for drop and insert applications. DIP Switch S8 is located on this board which is on the opposite side of the unit from the main ci rcuit board).

DTE

Coding

DTE

Framing

Dn Up

Figure 2-5

LBO

Switch S8

DTE

LBO

DTE

LBO

Not

Used

Not

7654321

Used

Not

Used

T1 DTE Line Framing

Position S8- 1 is used to set the framing of the T1 DTE line.

Down: ESF Up

:D4

T1 DTE Line Coding

Position S8- 2 sets the line coding for either AMI or B8ZS zero suppression.

:AMI Up:B8ZS

Down

T1 DTE LBO

Positions S8- 3, S8 -4, and S8-5 set the line build out to one of the values listed below. The transmit output level is selectable according to the cable length between the unit and the T1 equipment (PABX, channel bank, etc.). The factory default setting is 0-110 feet

Ta b l e 2 - 7

S8-3 S8 -4 S8-5 DTE LBO

Down Up Down Down 110 - 2 20 ft Down Up Down 220 - 3 30 ft Up Up Down 330-440 ft Down Down Up 440 - 5 50 ft Up Down Up 550-655 ft Down Up Up > 655 ft

T1 DTE Line Build Out

Down Down 0 -110 ft

Supervisory Port Connection

Figure 2-6

PRISM 3001

Stand-alone Rear Panel

2-9

Supervisory Port Connection

The front panel supervisory port serves several functions. A modem may be connected to the SUPV port for remote access or use of the COA (call on alarm) feat ure. For cabling convenience, the supervisory port may be used to connect the element manager into the 3001 network (refer to NMS Connection on page 2- 10).

The supervisory port bit rate is set by configuration Switch S6. The port is a serial RS-232 DCE port configured for 8 bits, no parity, and 1 stop bit. The physical connection is a 6- pin modular jack with the pinout shown in Table 2-8.

Ta b l e 2 - 8

Pin SUPV Port Interface

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

SUPV Port Pinout

NMS IN

NMS OUT

NETWORK

DTE

PORT

1 6

1 8

T1 D/I

1 8

High-speed Port Connection

ALARM/POWER

NTWK/EXT CLK

48 VDC

The high-speed port connection [on the rear panel of both the stand- alone (Figure 2-6) and the chassis unit (Figure 2-11)] utilizes a female subminiature DB-25 connector. If the unit is connected to an EIA-530 DTE-type device, a one- to-one DB-25 cable is all that is needed. If the unit is connected to an RS449-compatible interface, an adapter cable must be used to match the 37- pin RS-449 standard. The V.35 option also requires an appropriate adapter cable to connect to devices that use the standard 34- pin V.35 interface. Pin functions for the high-speed port interface are listed in Table 2-9.

2-10 INSTALLATION

NMS Connection

Ta b l e 2 - 9

DB-25 25 -pin A/B Common Name

1 Frame Ground 1 1 A 7 Signal Ground 7 19 B 2/14 Transmit Data 2/14 4/22 P/S 3/16 Receive Data 3/16 6/24 R/T 4 /19 Request to Send 4/19 7/25 C 5/13 Clear to Send 5/13 9/27 D 6/22 Data Set Ready 6/22 11/29 E 20 /23 Data Term Read y 20/23 12/30 H 8/10 Data Carrier Detect 8/10 13/31 F 15/12 Transmit Clock 15/12 5/23 Y/AA 17/9 Receive Clock 17/9 8/26 V/X 24 /11 T erminal Timing 24 /11 17/ 35 U/W

High-speed DTE Interface

EIA-530 25-pin A/B

RS-449 37 -pin A/B

V.35 34 -pin A/B

The PRISM 3001 is fully compatible with the TxPORT EM8000 Element Manager and 8100A Site Controller. The EM8000 and 8100A software systems are used to manage small to large networks of TxPORT network access products.

SUPV

NMS

IN / OUT

An element may be accessed by using an RS-232 connection from the serial port of the computer running the EM8000 program to the element’s SUPV port or the NMS IN and NMS OUT ports. The different connection methods are described in the following par agraphs.

The EM8000 workstation or the 8100A Site Controller may be directly connected to the 6-pin modular serial port connector labeled SUPV (also refer to Supervisory Port Connection on page 2-9). When a group of elements is connected in an NMS chain, the EM8000 or 8100A 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 call on alarm (COA) feature works through the SUPV port only.

The two 6- pin modular connectors labeled NMS IN and NMS OUT on the rear panel may be used for connection to the EM8000 or 8100A. This port is configured in this manner to allow the connection of multiple collocated units in a daisy chain IN/ OUT bus arrangement as shown in Figure 2-7. 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 elements.

NMS Connection

2-11

NMS

Split Cable

EM8000

or 8100A

Element #1

Element #2

Last Element

igure 2-7

All units on the same NMS chain must use the same NMS bit rate.

NMS

NMS Daisy - Chain A rrangement

OUT IN/OUTNMS

IN OUT

IN OUTNMS

The EM8000 may be connected directly into the NMS chain between two elements if connection to the SUPV port is not desirable. A Y-cable is used from the EM8000 serial port which splits the transmit and receive signals into two 6- pin modular connectors for the NMS IN and NMS OUT ports. Ordering information for this cable is found in Table 1-2 on page 1-8.

NMS IN

Only

Chassis

Operation

The 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 (explained in the Terminal Operation chapter).

EM8000 and 8100A operation in the 12- slot chassis is similar to operation with the stand-alone unit with the exception that all elements are already chained together in the chassis. The front panel SUPV and the rear panel NMS ports operate in the same fashion.

The NMS address, port bit rate, and power up configuration mode can be set only by the configuration switches. The physical connection is a 6- pin modular connector with the following pinout. This port is a serial RS-232 DCE port configured for 8 bits, no parity, and 1 stop bit.

Table 2-10

Pin NMS Bus IN 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

NMS Pinout

2-12 INSTALLATION

T1 DTE Port Connection

Network Connection

The 3001 provides an optional T1 DTE port interface for drop and insert applications. The DSX-output level should be set as instructed in T1 DT E LBO on page 2 -8.

The DTE physical interface for both the stand- alone unit and the chassis mounted unit is a standard RJ- 48C 8-pin modular jack with the pinout shown in Table 2-11.

Table 2-11

Pin T1 DTE Interface

1 Data Out 2 Data Out 3 Not Used 4 Data In 5 Data In 6 Not Used 7, 8 Chassi s Ground

T1 DTE Pinout

The network side of the 3001 is referred to as the network interface. This interface contains an ALBO to allow the unit to be located a substantial distance away from the telco network interface (receive level to -27 dB).

The network interface line build out levels should be adjusted as instructed in Network LBO on page 2 - 4. The maximum suggested cable lengths for unit connection to the network are listed below. Calculations are based on a cable temperature of 70°F, 0.083-µF/ mile capacitance, a 27-dB loss, and a 100-Ω, non-loaded, twisted pair cable. PIC refers to plastic insulated cable.

Table 2-12

Cable Type Loss per 1000' Max Cable Length

26 gauge PIC 6.8 dB 3,900 ft 24 gauge PIC 5.4 dB 5,000 ft 22 gauge PIC 4.2 dB 6,400 ft 19 gauge PIC 3.0 dB 9,000 ft

Network Line Build Out

The network physical interface for both the stand-alone unit and the chassis mounted unit is a standard RJ-48C 8- pin modular jack with the pinout shown in Table 2-13.

Table 2-13

Pin Net work Interface

1 Data In 2 Data In 3 Not Used 4 Data Out 5 Data Out 6 Not Used 7, 8 Chassis Ground

Network Pinout

NET / Exter nal Clock Connec tion

2-13

An alternate method of connecting the network is through the Network / External Clock contacts provided on the rear of the unit. Refer to NET / External Clock Connection below.

Disconnection

Notice:

NET / External Clock Connection

In accordance with FCC Rules, Part 68.218 (b), the telephone company must be notified before disconnecting the CSU / DSU.

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- 6. Connection information is shown in Table 2-14.

Table 2-14

Pin External Clock Connection

1 Network Input (Tip) 2 Network Input (Ring) 3 Network Output (Tip) 4 Network Output (Ring) 5 Station Clock (Ring) 6 Station Clock (Tip)

NET/External Clock Pinout

The station clock input on the standard 3001 unit is designed to accept TTL or bipolar signal levels. The station clock is commonly available as a 64 kHz, bipolar RTZ signal referred to as a

composite clock

. The unit, however, also accepts any unframed all ones bipolar RTZ signal with a level of 1.5 to 4 volts peak and a frequency of 1.544 MHz or any multiple of 56 or 64 kHz. An RS422 /423compatible station clock input, with the same range of input frequencies, is also available as a special option.

Alarm Connection

Stand - alone

Unit

Contacts are also provided on the rear of the 12-slot chassis unit to permit connection to an external timing source (using TB1, pins 1 and 2). The station timing is configured through the Terminal Interface. Refer to Line Parameters on page 4-15.

The stand-alone unit and the chassis modular unit provide rear panel alarm relay contacts. These dry (isolated) alarm contacts permit connection to a remote indicating device.

The connection for the stand- alone unit is made on pins 5 and 6 of the Alarm / Power connector as shown in Table 2-15.

Table 2-15

Pin Function

1 48 VDC Return 2 Signal Ground 3 - 48 VDC 4 Frame Ground 5 Alarm Contact 6Alarm Common

Alarm / Power Connection

2-14 INSTALLATION

Pin 5 is configured to operate in either a normally open (NO) or normally closed (NC) mode as dete rmined by the setti ng of the alarm re lay jumper shown below. This jumper is located on the circuit board as shown in Figure 2-8.

D/I Option

Figure 2-8

NC NO

Bottom-edge View of the PRISM 3001

Power Connection

Chassis

Unit

Figure 2-9

Alarm Relay Jumper

NO and NC refer to the contact’s relationship to the common contact under a no

alarms condition. Move the jumper to NC for normally closed operation (opens on

alarm) or to NO for normally open operation (closes on alarm).

Make connections to the contacts using 20 -gauge stranded wire (or similar). Contacts are rated at 0.3 amperes AC or 1.0 amperes DC.

Alarm conditions from all modules in the chassis are bused together in parallel and are presented on a single set of alarm relay contacts which permit connection to a remote indicating device. When connected, Pins 3 and 4 on terminal strip TB1 operate in a normally open mode. Refer to the 1051 - 2 Chassis Configuration Guide for mo re informat ion.

All PRISM 3001 modules in a common chassis must use the normally open contact mode.

Make connections to the alarm contacts using 20-gauge stranded wire (or similar). The contacts are rated at 120 mA AC or 120 mA DC.

The stand-alone unit and the modular chassis unit require a -48 VDC power source that is capable of supplying 165 mA current. Power supplies are available from TxPORT and are listed in Table 1-2 on page 1-8.

Stand - alone

Unit

The power source is connected to pins 1 and 3 of the Power and Alarm terminal as shown in Table 2-15.

Connect the ground lead before applying power to the unit.

Connect a chassis ground lead (18- to 20 - gauge is recommended) to the Frame Ground terminal (pin 4). Connect the other end of this lead to an appropriate facility ground. Often, the 48 VDC return is also ground. In that case, both return and ground leads should be connected to ground.

Power Connection

2-15

Connect the -48 VDC lead to the - 48 VDC terminal (18- to 20 - gauge recommended). Connect the return lead to the 48 VDC return terminal. When power is applied to the unit, the front panel indicators flash for approximately 10 seconds as the unit executes a self- test function.

If an ambiguous configuration has been programmed, the front panel indicators continue to flash after the self-test is completed. If the unit is correctly configured, the green STATUS indicator on the front panel lights.

Chassis

Unit

Redundant

Pow e r

Source

When operating the 3001 in the 12- slot chassis, all units are powered by - 48 VDC sources which are connected to the 6 -position terminal strip TB2 on the rear of the chassis. The chassis is designed with two power buses. The A bus feeds the odd slots (1, 3, 5, 7, 9, and 11). The B bus feeds the even slots (2, 4, 6, 8, 10, and 12).

Connect a ground lead (18- to 20-gauge) to the terminal marked Frame Ground on TB2, pin 2. Connect the other end of this lead to an appropriate facility ground.

Connect the ground lead before applying power to the unit.

Three modes of powering the ch assis are available.

The chassis is shipped with a redundant power board installed on power connector TB2. This board allows the connection of two independent -48 VDC supplies operated in a redundant mode. All slots in the chassis are powered from the combined input of the A and B power supplies. If either supply fails, the other powers the entire chassis.

To operate in the redundant power mode, connect the A bus -48 V IN (A) and + 48 V RTN (A) terminals on the redundant power board to the corresponding terminals of power supply A. Connect the B bus -48 V IN (B) and +48 V RTN (B) terminals to the corresponding terminals of power supply B.

Single

Power

Source

Dual

Pow er

Source

When using a single power source, simply connect the A bus -48 V IN (A) and + 48 V RTN (A) terminals on the redundant power board to the corresponding terminals of power supply A. This is essentially the same as the redundant configuration with power supply B not operational.

If not using the redundant power board, the A bus and the B bus must be connected together on the rear of the chassis with a jumper (pin 3 to pin 4 and pin 1 to pin 6).

When using a dual independent power supply, one - 48 VDC source feeds the A bus while anothe r - 48 VDC so urce feeds th e B bus. First, remove the re dundant power board. Connect the A bus 48 V Return and -48 VDC terminals to the corresponding terminals of power supply A (to power the odd-numbered slots). Connect the B bus 48 V Return and -48 VDC terminals to the corresponding terminals of power supply B (to power the even-numbered slots).

Each 3001 requires a 165-mA current. Ensure that the proper fuse size is used. Refer to the 1040 Power Shelf configuration guide.

2-16 INSTALLATION

TRANSPORT

3001

CSU/DSU

ACO

ACO SW

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

Figure 2-10

TRANSPORT

3001

CSU/DSU

ACO

ACO SW

S U P

Model 1051-2 Chassis, Front View

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

S U P V

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

S U P V

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

S U P V

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

S U P V

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

TRANSPORT

3001

CSU/DSU

STATUS

ACO

ACO SW

HIGH

SPEED

DTE

( B )

NMS

NET

HIGH

SPEED

DTE

NET

1 2 3 4 5

TB1 -

( B ) NMS OUT

NET

HIGH

SPEED

DTE

NET

T1 10

TB2

Figure 2-11

NMS A & NMS B, IN AND OUT, ARE NON-TELECOM (T1) CONNECTORS

Les portes d'entree/sortie NMS A & NMS B sont des connecteurs non-telecommunication (T1)

NET

HIGH

SPEED

DTE

NET

TB2 -

HIGH

SPEED

DTE

1 2 3 4 5 6

2.4 AMPS

NET

HIGH

SPEED

DTE

NET

1 - EXT CLK

TB1

2 - EXT CLK 3 - ALARM RING

HIGH

SPEED

DTE

NET

4 - ALARM TIP 5 - SIG GND

HIGH

SPEED

DTE

HIGH

SPEED

DTE

1 - +48V RTN ( B )

TB2

2 - FRAME GND 3 - -48V IN ( B )

NET

Model 1051-2 Chassis, Rear View

NET

HIGH

SPEED

DTE

NET

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

( A )

NMS

HIGH

SPEED

DTE

NET

( A ) NMS OUT

HIGH

SPEED

DTE

ENET

NET

PERATION

Introduction

Front Panel Controls and Indicators

General

Status

Indicators

This chapter contains general operation instructions for the TxPORT PRISM 3001 front panel. The unit may be controlled manually using the front panel and the circuit board configuration switches (configuration switches are discussed in the Installation chapter).

The Terminal Operation chapter covers the firmware-controlled Terminal Interface program, which provides more control. The unit may also be controlled using the TxPORT EM8000 Element Manager (refer to the EM8000 reference manual) or 8100A Site Controller.

The front panel contains 19 LED indicators which convey status, alarm, and test information. The front panel also contains a test switch, a supervisory port connector, and a BERT pattern switch. The following descriptions are referenced to Figure 3-1.

STATUS: The unit has two LED indicators on the front panel bezel that are

exposed whether the access door is open or closed. These general status LEDs provide a quick check of the unit’s operating condition (Go or No Go).

If neither LED is on, the unit is not powered. If the green LED is on, the unit is powered and functioning normally. If the red LED is on, there is a line fault that exceeds alarm thresholds or another type of unit failure. The problem can be isolated by further examination of the other front panel LEDs as described in the following paragraphs. NMS alarms are displayed by the two LEDs alternately turning red and green about every half second which occurs when the unit is managed by an 8100A that detects a duplicate address or invalid address (0 to 63 are valid). The 8100A detects these error conditions and notifies the unit to enter an NMS-alarm condition. Once the error condition has cleared, (either the duplicate address is removed or an invalid address is corrected) the 8100A notifies the unit to clear the NMS-alarm condition.

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

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

data line.

3-2 OPERATION

Alarm Controls

and Indicators

4 RTS: This green LED lights when the request to send signal is active. 5 DTR: This gree n LED lights when the data te rminal ready signal is active. 6 Activity Indicators: These two small, recessed LEDs indicate supervisory and

network manager port activity.

7 ACO: This yellow LED lights whenever the

alarm cut off switch is placed in the left on

ACO SW

D T E

STATUS

ACO

BV/CR/FE

LOS/OOF

AIS

REM ALM

LOC ALM

LLB PLB FLB

TST

ERR

E T

LOCFAR

position. It indicates that the alarm relay contacts are disabled.

8 ACO SW: The alarm cut off switch controls the

alarm relay c ircu itry. If the swit ch is pla ced i n t he left on position, this circuitry is deactivated.

9 BV/CR / FE: Thi s LED lights o ne second for

each second that has an occurrence of bipolar violations (BPV), cyclic redundancy check (CRC) errors, or frame bit errors (FBE).

10 LOS/O OF: This LED blinks with a loss of signal

V.35

2 3 4 5

RD RTS DTR

(LOS) from th e network. It li ghts constant ly when an out of frame (OOF) condition is detected.

10 11 12 13

14 15

16 17 18

7 8

Test Controls

and Indicators

11 AIS: This alarm indication signal LED lights if

S U P V

PAT SEL

an unframed all ones condition is detected from the networ k.

12 REM ALM: This LED li ghts constan tly when a

remote (yellow) a larm signal is received.

13 LOC ALM: This LED lights when a local alarm

exceeding alarm thresholds exists.

Figure 3-1

3001 Front Panel

Refer to Alarm Param eters in Alarm Paramete rs on page 4 -17 for more information on alarm thresholds.

14 LLB: This LED lights continuously when the network interface is in a line

loopback. It flashes when the T1 DTE interface is in a line loopback. With PLB, this LED also lights continuously when the unit is in NET MLB or flashes when the unit is in DTE MLB.

Front Panel Testing

PLB: This LED lights continuously when the network interface is in a payload

loopback. With LLB, this LED also lights continuously when the unit is in NET

MLB or flashes when the unit is in DTE MLB.

FLB: This LED is active for port loops. It lights continuously when the unit is in a

fractional (high-speed port) loop. TST: This LED lights continuously during a Far or a Local test. It flashes while

loopback codes are transmitted at the start of a Far test and while unloop codes are transmitted at the end of a Far test.

ERR: This LED lights when BERT pattern errors are detected.

Test Switch: This switch (FAR / LOC) is used for local testing. Refer to Test

Switch for more information. Pattern Select: This switch determines the BERT pattern sent by the unit when the

test switch (item 19) i s in the FAR or LOC posit ion. Refer to BERT Pattern Select on page 2-4.

SUPV: The superv isory ja ck provid es dire ct term inal a ccess to contro l the un it and

gather status/ facility performance data. Refer to Supervisory Port on page 2 - 4 for more informatio n.

3-3

Front Panel Te sting

Test

Switch

Test

Access

Jacks

The previous section gave a brief description of each front panel control and LED indicator. This section explains the front panel test functions. Testing may also be performed using software control from the EM8000 Network Manager, 8100A Site Controller, or the terminal interface program (refer to the Terminal Operations chapter).

This switch (labeled FAR/LOC) is used for local testing. When in the FAR position, the unit sends five seconds of IBLC (in-band loop codes), then switches to the test pat tern selecte d by the Pattern Sele ct rotary switc h. When tran smitting IBLC, the test LED blinks. When transmitting a test pattern, it lights continuously. The ERR LED lights for one second when a bit error or sync loss on the returned data is detected.

When the test switch is returned to the normal center position, the unit sends five seconds of loop down code (100) and then returns to its normal operating mode.

When the Test switch is set to Local, the unit performs a network LLB as shown in loopback diagram #2 (see Figure 4-7 on page 4 - 11). The LLB and TST LEDs light.

Units with four bantam jacks provide access to the T1 line on the DTE side of the CSU. Two (MON) are used for non-intrusive network monitoring in both directions. The other two (NET) allow inserting signals to and from the network using a T1 test set. This is shown in Figure 3-2.

3-4 OPERATION

Network

DTE Interface

Protection

Insert to NET

Monitor

Line Drivers /Receivers

Insert from

Monitor

NET

CSU Circuitry

BERT

Pattern

Select

Figure 3-2

Monitoring and Network Jacks in the PRISM 3001

This rotary switch deter mines the BE RT pattern sent w hen t he Test switch is in the FAR position. Table 3-1 shows the corresponding BERT test pattern sent when the rotary switch is set to positions 0 through 9. Additional patterns are available through the Terminal Interface program (refer to Bit Error Rate Testing (BERT) on page 4-13).

Ta b l e 3 - 1

Position Pattern

0QRSS 1 1 in 8 23 in 24 32047 42 5 Clear 663 7511 8 Factory use only 9Flash

BERT Patterns

-1

Supervisory Port

When the switch is set to Flash (position 9) and the test switch is set to Local, the unit goes into the Flash download mode automatically. If the unit is placed in this mode accidentally, simply set the switch to another position and wait while the unit reboots.

This 6 - pin modular RS-232 supervisory jack provides direct terminal access for controlling the unit 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. The EM8000 Element Manager or 8100A Site Controller may be also connected through this port. Refer to Supervisory Port Connection on page 2- 9 for connection information.

ERMINAL

PERATION

Introduction

System Description

This chapter describes the screens and menus associated with the TxPORT PRISM 3001 terminal interface, which is a firmware application program embedded inside the unit.

The terminal is connected to a 6-pin modular jack on the PRISM 3001. Refer to the Installation chapter for more information on user connections. Cables are available for most typical connections. Standard cables and ordering numbers are listed in Table 1-2 on page 1 - 8. Contact TxPORT for any assistance in cable selection.

In addition to the 54016 and T1.403 protocols, proprietary messages can be sent over the facility data link (FDL) from the near-end PRISM 3001 to the far-end PRISM 3001. A local RS-232 terminal connected to the unit may access a far-end PRISM 3001. Thus, the remote unit may be queried for status and statistics, configured, or looped for testing as if the terminal is connected to it directly.

The terminal interface 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 various terminal emulatio n programs . The soft ware suppl ied with the emulat ion program should be consulted for further reference.

The 3001 unit has two serial interface RS-232 ports. Either of these ports may be used for the terminal interface program or as a connection to the EM8000 Element Manager or an 8100A Site Controller. One port is a pair of daisychain-type rear panel connectors labeled NMS IN and NMS OUT. The other port is located on the front panel and labeled SUPV. Serial bit rates of 1200, 2400, 9600, or 19200 bps may be selected using option switch S6 (refer to the SUPV and NMS port bit rates, Configuration Switch S6 on page 2 - 5).

Modem

Compatibility

Both serial ports support the same custom protocols that allow the terminal interface, EM8000, or 8100A to request and receive performance and configuration data from the unit. The unit automatically determines which protocol is needed.

The PRISM 3001 terminal interface supports the use of an AT-command-setcompatible modem on either, or both, of the NMS IN and SUPV serial ports. The modem should be optioned to ignore DTR, enable auto answer, inhibit command echo, and return verbose result codes.

4-2 TERMINAL OPERATION

Calling the PRISM 3001 and sending the break command before receiving the connect message hangs up the modem.

Screen

Components

Terminal interface screens have several components common to all screens and are discussed individually in the following paragraphs. These common elements are shown in the Password Screen (see Figure 4-1).

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

------------------------------- PASSWORD SCREEN --------------------------------

Enter Password: (**********)

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

Password Screen

Device Type

and Revision

Figure 4-1

The device type (PRISM 3001) and the revision control numbers are shown in the upper left co rner. The first number is th e hardwa re revision and the seco nd number is the software revision. Information is displayed for the near-end unit (connected directly to the terminal) on the top line, and for th e far-end unit (conne cted to the network T1 interface) on the second line. Refer to this information when contacting the factory with inquiries.

Date / Time

Element ID /

Unit Addre ss

Menu Title

Messages

The far-end information is available only for TxPORT products that support a proprietary message set. If the far end does not support these messages but does support the standard 54016 protocol, then the far-end information is displayed as Generic 54016 Far End. If the far end does not respond to either proprietary or 54016 messages, then No Far End Response is displayed.

The top right corner of the terminal screen displays the current date and time. The setting of these functions is described in Utilities Screen on page 4- 21.

Below the header, the Element ID is displayed (refer to Utilities Screen on page 4 - 21). Next to the Element ID is the units NMS address.

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

The last line may display diagnostic messages.

System Description

4-3

Interface

Start Up

Once a compatible terminal is properly connected to the 3001, the terminal interface is started by sending a Break to the unit. The Main Menu screen (Figure 4-2) is displayed if no password has been specified in the Utilities menu. Refer to Utili ties Screen on page 4 -21 for infor mation on set ting the passwo rd. In the Password screen (Figure 4-1), the correct password must be entered to obtain access to any other menu.

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

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

Alarms Performance Maintenance Configuration Utilities

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

Cursor

Controls

Figure 4-2

The terminal interface utiliz es a highlighted cursor to make sel ections from menus and to select fields within screens to be operated upon. The cursor can be moved

Main Menu Screen

using the standard keyboard arrow keys (left, right, up, and down). Once a field is highlighted, it is manipulated as described in Field Types below.

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 of these is performed by pressing a letter key while holding down the Control key. Alternate commands may be freely mixed with the keyboard commands as desired. The alternate command keys ar e listed in Table 4-1.

Ta b l e 4 - 1

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

Alternate Commands

Each screen is made up of fields. The two basic types of fields 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 display only. User-selectable fields allow making changes or executing commands.

4-4 TERMINAL OPERATION

✦ Pressing Enter on such fields as (Reset) and (Start Test) execute the function. ✦ The most common type of field in parenthesis accepts typed input in the form of

Fields without brackets or parenthesis are display-only fields. They cannot be changed on the screen. Most user-selectable fields are enclosed in brackets or parenthesis and are described in the following paragraphs. Any exceptions are noted in the appropriate section of this manual.

Fields enclosed in brackets [ ] offer the user a list of selections from which to choose. The selections may be toggled by pressing the spacebar. Each time the spacebar is pressed, a new selection appears. When the appropriate choice appears, press Enter. In most cases, the new selection does not take effect until Enter is pressed.

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

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 replac e it, pres s the ri ght arrow key to m ove the curs or to the point th at 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.

Main Menu Screen

Many fields of this type may also be toggled by pressing the spacebar as well as accepting typed input. Other fields are range checked, where the user cannot exit the screen with an illegal value set.

Any of the scr eens may be redi splayed or refr eshed by pres sing Con trol+U.

The Main Menu screen (Figure 4-2) lists the user-accessible functional menus. To activate any menu, highlight the desired selection and press Enter. This menu and any subsequent menu may be exited by pressing Escape. If the Main Menu is exited, the termi nal interface program termi nates and h angs up the mod em. This is a valid way to end a user session. If any other menu is exited, the user is returned to the previous scree n.

The menu structure (Figure 4-3) shows all the screens accessible from the Main Menu.

Alarms Screen

If no key is pressed for 10 minutes, the terminal interface logs off automatically. To manually log off, press Escape from the Main Menu.

4-5

Alarms Scree n

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

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

Alarms

Log

Standard 24-Hour

Enhanced 24-Hour

Performance

Standard 30-Day

MAIN

Log

Off

igure 4-3

Maintenance

Configuration

Utilities

PRISM 3001 Menu Structure

Enhanced 30-Day

Line Parameters

Alarm Parame ters

Port Parameters

The Alarms screen (Figure 4-4) allows viewing the current alarm status of the network and DTE lines. The fields are described as follows.

NET Alarms: OK DTE Alarms: OK

Loss of Signal Seconds (LOSS) 0 5 Errored Seconds (ES) 2 45 Severely Errored Seconds (SES) 2 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) 0 0 DTE LOS/OOF Seconds (LOSS) 0 0 Power Loss Seconds (PLS) 0

Reset Alarm Registers: (RESET)

Element: [NEAR]

Current Threshold

Figure 4-4

Alarms Screen

Element The NEAR or FAR unit may be selected by toggling the spacebar.

4-6 TERMINAL OPERATION

NET/DTE

Alarms

(alarm status):

These status lines display the selected elements current network/DTE signal alarm state. Alarms are determined by the following user-selectable thresholds.

Ta b l e 4 - 2

Alarm Description

------- No status is available. OK No alarm threshold has been exceed ed, although

ERRS Errored Second s, Severely Errored Second s, or

LOSS Loss Of Signal Seconds threshold is exceeded. OOFS Out Of Frame Seconds threshold is exceeded. RAIS Remote Alarm Seconds threshold is exceeded. AISS Alarm Indicatio n Second s threshold is exceede d. UAS Unavailable Seconds threshold is exceeded.

Alarm Indications

errors may exist which do not exceed thresholds.

Bipolar Errored Seconds threshold is exceeded .

The main body of the Alarms screen displays the current count for parameters that may be used to trigge r an ala rm. The Cu rrent colu mn shows the total of the preceding 15 one- minute intervals. At the end of each one -minute interval, the oldest minute of the 15 - minute interval is discarded.

Power Loss

Seconds

Reset Alarm

Registers

The Threshold column shows the values set in the Alarm Configuration screen (Figure 4-10 on page 4- 17). Any parameter that has a current value equal to or greater than its non-zero threshold generates an alarm. Any parameter with a threshold value of 0 is disabled from generating alarms.

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

This field displays the number of seconds that the element has been without power since this value was last cleared.

Pressing Enter on (RESET) zeros the value of all Current alarm parameters, but does not affect 24 - hour or 30 -day performance registers.

Performance Screens

4-7

Performance Screens

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

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

Element: [NEAR] Status: OK 24 Hr.% Error Free: 24.2 Target: [USER ][NET] Completed Intervals: 96 Error Events: 302 (RESET) Event Free Intervals: 0 (RESET PERFORMANCE REG)

362 Current 2 362 0 2 3 3

------- 24 Hour 6 2700 0 2 3 0

------- 30 Day 30 0 20 12 23 13 PAGE-UP ----------------------------------------------------------------- Time Interval ES UAS BES SES LOFC CSS PAGE-DN ----------------------------------------------------------------- 13:30 6 1 900 0 0 1 0 13:15 7 2 900 0 0 3 3

The Performance screens display a detailed history of the error parameters that are continuously monitored. The terminal interface provides display of near-end or far-end performance data using the facility data link.

The unit has a dual set of performance data registers with individual resets that hold line statistics for both the telco and user. Each register set provides detailed status and performance history for the network and DTE interfaces.

The system has four Performance screens. The STANDARD 24 HOUR and the ENHANCED 24 HOUR screens allow the user to view the 24- hour detailed performance history of the T1 circuit. The only difference in these two screens is in the performance data displayed. The STANDARD 24 HOUR screen is shown in Figure 4-5.

[STANDARD 24 HOUR]

Figure 4-5

24 Hour Performance Screen

The STANDARD 30 DAY and the ENHANCED 30 DAY screens allow the user to view a 30-day history of a particular elements performance. These screens reference int ervals by date rather tha n by time. To reach each of th e four screen types, use the spacebar to toggle the STANDARD 24 HOUR field. The other fields are described as follows.

Element This field selects either the NEAR unit or the FAR unit as the source of

performance data or the target of commands. NEAR refers to the unit to which the terminal is c onnected. FAR refers to the unit at the othe r end of the ne twork T1 span. Use the spacebar to toggle this field.

Target This two-part field determines which section of the circuit is presently displayed

by toggling the spacebar. Telco registers are for viewing only and may not be changed. Th e options ar e as follows.

USER NET

Display the user performance registers for the network.

4-8 TERMINAL OPERATION

USER DTE

Display the user performance registers for the T1 DTE.

TELCO NET

Display the telco performance registers for the network.

TELCO DTE

Display the telco performance registers for the T1 DTE.

Error

Events

Reset

Performance

Registers

Standard

24 Hour

Status

This field displays the running total of ESF error events for the circuit selected in Element and is applicable only when Target is set to USER. This count accumulates u ntil it reaches 65535 or is reset by pr essing Enter wi th the (RESET) field highlighted.

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

DELETE ALL PERFORMANCE DATA?

(NO!) (YES)

To exit this screen wit hout performi ng the reset fun ction, press E nter with NO selected. To proceed with the reset function, press Enter on YES. All values for the chosen regist er set (NET or DT E) are then re set to zero.

Toggling this field with the spacebar steps through the four available performance screens.

The remaining fields in the Performance screen are display only. They are defined as follows.

This field displays the selected T1 line status derived from the type (or absence) of errors in the received data. The status represents the immediate state of the received T1 signal and is not related to the alarm thresholds. This field shows one or more of the signal conditions listed in Table 4-3 on page 4 - 14.

Completed

Days

Completed

Intervals

24 Hr.%

Error Free

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

This field displays the number of 15 - minute intervals in the last 24- hour period since the registers were last cleared (a 24 - hour period may contain up to 96 intervals).

This field displays the percentage of error-free seconds within the last 24 hours or since the event registers were last cleared. It is based only on the ES and UAS parameters.

Performance Screens

4-9

(performance

data)

The main body of display data consists of error events for three different periods: The first display line shows the data accumulating 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). The third line shows the 30- day totals.

The remaining lines of this scr een show the data for any in tervals containing errors. 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 screens, interval 30 is the oldest 1 - day interval in the current 30 - day period. The real time (or date on the 30 -day sc reens) of the inte rval beginning is shown in the first column.

If more than five errored intervals have elapsed, PAGE- DN appears to the left of the performance data. Pressing Enter on this field displays the next five errored intervals. PAGE- U P appears once PAGE -DN is used. Pressing Enter on PAGE-UP displays the previous five errored intervals. Only intervals that contained errors are displayed, which eliminates rows of zeroes. If an interval is not displayed, no errors were de tected in that ti me period.

The parameters shown on the Performance screens are updated at five-second intervals.

Per AT&T Technical Reference TR54016, the Standard 24 Hour and Standard 30 Day performance data consists of Errored Seconds (ES), Bursty Errored Seconds (BES) , Severely Errored Seconds (SES), Unavailable Seconds (UAS) , Loss of Frame Count (LOFC), and Controlled Slip Seconds (CSS).

The Enhanced 24 Hour and Enhanced 30 Day screens show data for CRC Errored Seconds (CRCES), Out of Frame Seconds (OOFS), Loss of Signal Seconds (LOSS), Alarm Indication Signal Seconds (AISS), Remote Alarm Seconds (RAS), and BPV Seconds (BPVS).

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

4-10 TERMINAL OPERATION

Maintenance Screen

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

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

ELEMENT: (Element 34 ) ID: 34 BERT: [T1 NET ] (CLEAR TESTS) Pattern: [CLEAR] (CLEAR ALARMS) Test Length: [15 min]

T1 Loop: [FAR PLB] Pattern Sync: IN SYNC T1 Unloop: [FAR PLB] Elapsed Time: 01:15:00 Bit Errors: 5 Port Loop: [One NEAR ] Errored Seconds: 3 Port Unloop: [One NEAR ] % EFS: 100

(START TEST) NET Status: OK (RESET ERRORS)

DTE Status: OK Near Loops: -------/-------/-------/------Far Loops: -------/-------

The Maintenance screen (Figure 4-6) allows the user to perform test and maintenance functions on the T1 circuit. The line may be taken out of service by inducing loops at each end. BERT is performed with on-board test facilities. Therefore, no other test equipment is needed. Actions initiated by each field are detailed in the following paragraphs.

Figure 4-6

Maintenance Screen

Clear

Tests

Clear Alarms

Test Loops

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

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

Loop status changes can be made only when the BERT function is not in the active mode.

T1 Loop

This field is used to select the test loops to be initiated. The type of loop is chosen by toggling the spacebar and is executed by pressing Enter. The normal operating mode and available loopback options are detailed as follows. The following numbered paragraphs are indexed to the diagrams in Figure 4-7 and Figure 4-8.

1 Normal Operation: This diagram depicts the units normal operating mode.

2 NET LLB: The network line loopback command loops data received from the

network back toward the network. Received data is passed through to the DTE ports.

3 NET PLB: The network payload loopback command loops the network data back

toward the network. Framing, CRC, and FDL are regenerated. Framed all ones are passed to the DTE ports.

Maintenance Screen

4-11

NET MLB:

The network maintenance loopback command loops data at the T1 DTE port bac k toward the network (p asses network data to the DTE and return data to the network). MLB affects only network channels assigned to the T1 DTE.

5 DTE MLB:

The T1 DTE maintenance loopback command loops all network data back toward the DTE ports at the network interface. Data is passed through to the network. It is advisable to set T1-NET Timing to INTERNAL rather than NETWORK when this loop is enabled.

6 DTE LLB:

The T1 DTE line loopback command loops data received at the T1 DTE interface back toward the T1 DTE (all DS0s are re turned to th e T1 DTE port). The T1 DTE data is also passed to the network.

FAR PLB:

The far payload loopback command sends loop codes to the far-end

unit to force it into a network payload loopback mode.

FAR LLB:

The far line loopback command sends loop codes to the far-end unit to

force it into a network line loopback mode.

T1 Unloop

Pressing Enter on this field takes down the specified loop from the currently selected element.

7 Port Loop:

The Port Loop field is used to loop a high-speed DTE port at the near or far end. Far end loops use V.54 loop codes to activate, therefore, the V.54 function must be enabled (refer to Port Parameters on page 4 - 19). high-speed port loops are bidirectional. The loop is chosen by toggling the spacebar.

To Network

RJ-48C

From Network

To Network

RJ-48C

From Network

Network Interface

Framer/Deframer Multiplexer Receivers/Drivers

From

NET

From

NET

Framer/Deframer

Receivers/Drivers

DTE (DSX1)

BERT Generator/

Detector

From Ports

Ports

Normal Operation

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From

NET

From

NET

Framer/Deframer

Receivers/Drivers

DTE (DSX1)

NET LLB

BERT Generator/

Detector

From Ports

Ports

Network LLB

Figure 4-7

Loopback Diagrams

(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'-655'

to cross-connect

1 2

4 5

1 2

4 5

4-12 TERMINAL OPERATION

To Network

RJ-48C

From Network

To Network

RJ-48C

From Network

To Network

RJ-48C

From Network

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From NET

NET

From NET

NET

Framer/Deframer

Receivers/Drivers

DTE (DSX1)

NET PLB

All ones

to DTE

BERT Generator/

Detector

From Ports

Ports

Network PLB

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From NET

NET

From NET

NET

Framer/Deframer

Receivers/Drivers

DTE (DSX1)

BERT Generator/

Detector

From Ports

Ports

Network MLB

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From NET

NET

From NET

NET

Framer/Deframer

Receivers/Drivers

DTE (DSX1)

DTE

MLB

BERT Generator/

Detector

From Ports

Ports

DTE MLB

NET

MLB

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1'-655'

to cross-connect

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1'-655'

to cross-connect

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1'-655'

to cross-connect

1 2

4 5

1 2

4 5

1 2

4 5

To Network

RJ-48C

From Network

To Network

RJ-48C

From Network

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From NET

NET

From NET

NET

Framer/Deframer

T1 DTE

LLB

Receivers/Drivers

DTE (DSX1)

BERT Generator/

Detector

From Ports

Ports

DTE LLB

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

NET

From NET

NET From

NET

DTE

Near/Far

Framer/Deframer

Receivers/Drivers

DTE (DSX1)

BERT Generator/

Detector

Figure 4-8

From Ports

Ports

Port Loop

(bidirectional)

Loopback Diagrams

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1'-655'

to cross-connect

(100' max.)

EIA-530 or V.35

RJ-48C

DSX1, 1'-655'

to cross-connect

1 2

4 5

1 2

4 5

Maintenance Screen

4-13

Port Unloop

Pressing Enter takes down the specified loop from the currently selected port.

Bit Error

Rate Testing

(BERT)

BERT

This field shows the direction that the BERT signal is sent. The choices are T1 NET, T1 DTE, One NET, and One DTE. Individual channels can be selected if they are not mapped to the T1 DTE or high-speed port.

Pat t e r n

Specifies the pattern to be transmitted during a test. Modifying this field does not cause the pattern to be tra nsmitted (refer t o Start Test). BERT may al so be

activated via the front panel switch. The choices are QRSS, 63, 511, 2047, 2

, 223,1:8, 3:24, ALT, and CLEAR. The CLEAR pattern passes the received data

through the unit (alarm detection and reporting are disabled while the test is active).

Test Length

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

Start Test

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

Reset Errors

Pressing Enter with the cursor on this field clears the test error results.

The following fields are display only. They reflect the selected test parameters and the results of these tests.

Pattern 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.

Elapsed Time

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

Bit Errors

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

4-14 TERMINAL OPERATION

Errored 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 errored 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 Time.

Line Fault

and

Loop Status

NET / DTE Status

Displays the fault status of the network and DTE. Status indications are described in Table 4- 3.

Ta b l e 4 - 3

Status Description

------- No status is available. OK No errors are currently detected. ERR Frame bit errors, CRC errors, or bipolar violations are detected. LOS A loss of signal condition exists. OOF An out of frame condition exists. RAI A remote alarm indication signal is being received from the far end. AIS An alarm indication signal is being received from the far end. UAS An unavailable signal state exists due to co nsecutive severely er rored seconds.

Status Indications

Near Loops

Displays the loop status of the near element.

Far Loops

Displays the loop status o f the far element .

Configuration Screens

The three configuration screens allow viewing and setting configuration parameters for the network elements. An element may be configured either before or after the hardware is installed using the option switches or the terminal interface. To retain the configuration parameters selected through the terminal interface on power-up, set the option switches to boot from RAM. Once a unit is active, its configuration may be changed by this program regardless of the switch settings.

The underlined values are the factory default parameters stored in ROM.

Configuration Screens

4-15

Line

Parameters

The Line Parameters screen (Figure 4-9) allows reviewing and setting line parameters for the selected element. The following fields are used in this screen. The T1 DTE fields appear only in units with that option installed.

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

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

ELEMENT: [NEAR]

T1-NET Framing: [ESF] Rem Comm Channel: ( 0) T1-NET Line Code: [B8ZS] T1-DTE Framing: [D4 ] T1-NET LBO: [-7.5 dB] T1-DTE Line Code: [B8ZS] PRM Enable: [DISABLED] T1-DTE DSX Level: [0-110 FEET ] Zero Supppression: [DISABLED] D/I Start Ch: ( 1) T1-NET Timing: [STATION ] # of Channels: (24) Station Timing: [64K x ] ( 0)

Channel Allocation: 1x1x1x 1x1x1x ------ ------

Figure 4-9

Line Parameters Screen

T1 - NET Framing

Selects the framing for the network side of the element. The choices are ESF

and D4.

T1 - NET Line Code

Sets the network side line coding. The choices are AMI and B8ZS

T1 - NET LBO

Sets the line build out for the network interface. The choices are 0

dB, -7.5 dB, -15

dB, and -22.5 dB.

PRM Enable

This field allows the T1.403 Performance Report Message, which is sent once a second, to be turned on or off. The choices are ENABLED and DISABLED

Zero Suppression

This field determines whether ones density insertion is activated after 15 zeros (rather than 175 zeros). T he choices a re ENABLED

and DISABLED.

T1 - NET Timing

Sets the timing source to sync hronize the unit s internal timi ng generators. In all cases, slips are controlled to occur on frame boundaries at the network and/or DSX1 ports when timing synchronization is lost.

INTERNAL.

The units internal frequency standard is used for all timing.

T1 DTE.

The unit synchronizes to the clock recovered from the DSX1 T1 DTE

port. This selection only appears on units equipped with the T1 DTE option.

PORT 1.

Timing is synchronized to the external terminal timing clock supplied

from the DTE and connected to the selected port.

4-16 TERMINAL OPERATION

NETWORK. Timing is derived from the network recovered clock (most applications

use this selection).

STATION. Timing is derived from a bipolar or TTL-compatible clock supplied to

the unit via the rear panel STA CLK connection. When this mode is selected, the timing rate m ust also be set from Stat ion Timing.

Station Timing

Selects the input timing and only appears when Station is selected from the T1 - NET Timing menu. The choices are N×56 K, N × 64 K, and 1.544 MHz. A number appears to the right of this field when N× 56 K or N ×64 K is selected to indicate the ra te multiplier. Enter a value from 1 through 24.

Remote Comm Channel

This field selects a communication link to the far-end unit. If 0 is selected, communication is established over the ESF facility data link (valid only when the network interface is configured for ESF framing and the FDL has end to end integrity). For example, the entire T1 bandwidth is available to the user with no intervening multiplexors in the signal path that block the FDL.

As an alternative, the communication link may be assigned to an unused idle channel. This option may be used when the network is operating in D4 or ESF modes.

When the remote communication is programmed to operate over a spare network channel, the following test conditions interrupt access to the far-end unit.

✦ A remote network LLB or PLB is init iated. ✦ A local network LLB is initiated.

When the remote communication is programmed to operate over the facility data link (FDL), the following test conditions interrupt access to the far-end unit.

✦ A remote ne twork LLB is initiate d. ✦ A local LLB is activated on the near end.

T1-DTE Framing

Selects the framing for the DTE side of the element. The choices are ESF and D4

T1-DTE Line Code

Sets the DTE side line coding. The choices are AMI

and B8ZS.

T1-DTE DSX Level

This field specifies the DTE DSX1 interface output level. The choices are 0-110 ft

, 111-220 ft, 221-330 ft, 331-440 ft, 441-550 ft, 551-660 ft, and LONG.

D / I Start Channel

Selects the first channel in the block of channels assigned to the T1 DTE, from 1 through 24.

Configuration Screens

4-17

# of Channels

Sets the number of channels to be passed through to the T1 DTE, from 1 through 24.

Channel Allocation

This display field indicates network channel assignments with Channel 1 on the left and Channel 24 on the right. Channels assigned to a port are identified with port number 1. Channels assigned to the T1 DTE are marked as D. Non-assigned idle channels are marked with a hyphen (-). Remote communication channels are marked with an R. When channels are assigned to a port in the ALTERNATE assignment mode (see Port Parameters on page 4 -19), each data channel is followed by an idle channel that is not assignable for other ports and is marked with an x.

Alarm

Param et e rs

The Alarm Parameters screen (Figure 4-10) allows reviewing and setting alarm-relate d thresholds fo r the selected e lement. These th resholds are th e minimum acceptable performance levels. To modify the parameters, highlight the desired statistic, type in the new value (from 0 to 900) and press Enter. If this value is later surpassed, an alarm indication appears. A field set to zero causes the element not to alarm on that statistic.

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

------------------------------ ALARM PARAMETERS --------------------------------

Element: (Element 34 ) ID: 34

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 Seconds (LOSS): ( 0) Alarm Reset Timer (seconds): ( 30)

Figure 4-10

Alarm Parameters Screen

Errored Seconds

A one-second period in which at least one logic error occurred.

Severely Errored Seconds

A one-second period in which at least 320 CRC errors or 1 OOF (out - of - frame) event occurred.

Loss of Signal Seconds

A one-second period in which the T1 received signal is interrupted.

Unavailable Seconds

A one-second period in which consecutive severely errored seconds cause an unavailable state.

4-18 TERMINAL OPERATION

DTE LOS / LOF Seconds

A one-second period in which the T1 received signal (on the units DTE side) is interrupted or the amplitude drops below a certain level.

Remote Alarm Seconds

Generated by the terminal equipment when an improper signal is received from the facility (or upon receipt of unframed all ones).

AIS Seconds

A one-second period in which all ones are received.

Out of Frame Seconds

A one-second period in which a frame sync loss occurred.

BPV Seconds

A one-second period in which at least one bipolar violation occurred.

Alarm Reset Timer

Determines the number of seconds after alarm conditions clear before indications are r em oved.

Configuration Screens

4-19

Port

Parameters

The Port Configuration screen (Figure 4-11) 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 other high-speed ports or the T1 DTE Port. The factory default is all channels disabled

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

------------------------------- ALARM PARAMETERS -------------------------------

Element: [NEAR]

Channel Allocation: 1x1x1x 1x1x1x ------ -----Port # [One] Rate Mult: [N x 64K]

DS0 Ch. Assign: [Alternate] V.54 Loop: [Enabled] Start Ch. #: (1) CTS Control: [Force True]

Port Rate: [384 kHz] DSR Control: [Force True] # of Channels: 6 DCD Control: [Force True]

Tx Clock: [Internal]

Invert Data: [No]

Figure 4-11

Por t Pa ra me t er s Sc re e n

Channel Allocation

Refer to Channel Allocation on page 4-17.

Por t #

Selects the port to be configured.

Rate Multiplier

The unit can operate at any data rate that is a multiple of 56 or 64 kbps. Selecting N×64K provides port bit rates that are multiples of 64 kbps. The ones density requirements of the T1 network li ne must be ensur ed in this mode. Se lecting N×56K allows port bit rates that are multiples of 56 kbps. The unit maintains ones density for the selected DS0 channel in this mode.

DS0 Channel Assignment

Selects whether the DTE channel assignment is made as a CONTIGUOUS group or as ALTERNATE channels. Selecting ALTERNATE assures ones density.

Start Channel #

The starting channel in the 24- channel DS1 bit stream must be selected in this field. The unit then assigns the following channels automatically according to the bit rate and the mode selected in DS0 Channel Assignment. The choices are 1 through 24.

4-20 TERMINAL OPERATION

Por t Ra te

Selects the required port bit rate in increments of 56 or 64 kbps, depending on the selection in Rate Multiplier. The N multiplier ranges in value from 0 to 24.

# of Channels

Displays the number of channels to be passed through to Port 1. This number is determined by the selection in Port Rate.

Transmit Clock

This field selects whether the INTERNAL DTE port clock or the EXTERNAL terminal cl ock is used whe n data is transm itted from th e DTE.

V.54 Loop

Selecting Enable allows the unit to respond to in-band 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 p ort 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 , and DCD Control

Setting any of these three fields to FORCE TRUE or FORCE FALSE allows the forcing of the port control lead output state. INTERNAL allows for normal operation as shown in Figure 4-12.

Interface Connector

PRISM

3001

No Effect

T1 Receiver

In S ync

AND

Port

Enabled

Data Term

Ready

Request

Send

Clear

Send

Data

Set

Ready

Pin Numbers

EIA-530

20 / 23

4/19

5/13

6/22

V. 35 RS-449

12 / 30H

C7/25

D9/27

E11/29

Data

Carrier

Detect

Figure 4-12

8/10 F 13/31

T1 Loss

of Signal

High-speed Data Port

Utilities Screen

4-21

Utilities Screen

The Utilities screen (Figure 4-13) handles the functions described in the following paragraphs.

3001 DSU x.xx/x.xx PRISM 3001 Date: MM/DD/YY No Far End Response Time: HH:MM:SS

------------------------------ ALARM PARAMETERS --------------------------------

Element: [NEAR]

Set Time: (12:34:25) Set Date: (04/30/93)

Alarm Notification: [DIAL ]

Primary Phone#: (205-555-1212 )

Set

Time

Secondary Phone#: (205-555-1212 )

Figure 4-13

The curren t time may b e entered in this field using th e HH :MM :SS format. For example, 3:45 a.m. is entered as 0345 and 3:45 p.m. is entered as 1545.

Element ID: (DSU 3001 )

New Password: (JohnDoe )

Utilities S creen

Set

Date

Alarm

Notification

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

The time and date can be set at the far end, but not displayed.

This field controls remote alarm reporting. The choices are as follows.

OFF

Disables al arm reportin g.

DIRECT

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

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.

DIAL NMS

Sends reports through an attached AT-command-set-compatible modem to a TxPORT EM8000 Network Manager or an 8100A Site Controller.

Primary Phone #,

Secondary Phone #

These fields are ASCII strings for the primary and secondary call on alarm phone numbers used in the DIAL and DIAL NMS modes. The strings must be compatible with the standard AT-modem command set. They should not include the ATDT dial command pr efix.

4-22 TERMINAL OPERATION

The unit makes three attempts to connect using the primary number. If all three attempts fail, it 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 with the primary number again. When a connection is detected, the unit outputs the notification message (as described in the Element ID field) then disconnects.

Element ID

New

Password

This field allows the entry of an ASCII string (29 characters long) which identifies the unit to the device receiving the alarm notification messages. Call on alarm (COA) messages are in the following format:

HH:MM:SS MM/DD/YY Element ID <CR> <LF> NET Alarms: alarms <CR> <LF> DTE Alarms: alarms <CR> <LF>

where (alarm s) is a string cons isting of some or all of the iden tifiers LOS, OOF, RAS, AIS, UAS, ERRS, or the word NONE. The following is an example.

17:24:55 08/04/93 Joesunit NET Alarms: LOS AIS ERRS DTE Alarms: LOS

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.

This field allows entry of a password of up to 10 characters. An empty string (Enter 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:

Maintenance

Reset

Incorrect Password; Please Enter Again.

Do not exit the terminal interface program until the password procedure is fully understood. If a password has been specified, it must be typed exactly to reenter the program.

If the password is lost or forgotten, call the TxPORT Product Technical Support for a one-time use back door password. See TxPORT Customer Service on page 1 - 9 for telephone numbers.

This field clears all user-selectable parameters, performance registers, passwords, and alarms. All alarm threshold parameters are reset to default values. The unit reloads start-up configuration settings from the source specified by configuration Switch S6 (see Configuration Switch S6 on page 2 -5). Pressing Enter on this field brings up the following w arning:

DELETE ALL DATA AND RESTART UNIT?

(NO!) (YES)

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.

Affidavit fo r the Connection of

Customer Premises Equipment to

1.544 Mbps and/or Subrate Digital Services

For work to be performed in the certified territory of Telco’s Name: __________________________________________________________________ State of: __________________________________________________________________ County of: __________________________________________________________________

I, _____________________________________, of ___________________________________,

(Name Authorized Representative) (Customer Name)

_____________________________________________, _______________________________,

(Customer Address) (Telephone Number)

being duly sworn, state: I have responsibility for the operation and maintenance of the terminal equipment to be con-

nected to ______________________1.544 Mbps and/or ___________________ subrate digital services. The terminal equipment to be connected complies with Part 68 of the Commissions rules except for the encoded analog content and billing protection specifications. With respect to encoded analog content and billing protection:

➢ I attest that all operations associated with the establishment, maintenance and adjustment of the

digital CPE with respect to encoded analog content and encoded billing information continuously complies with Part 68 of the FCC’s Rules and Regulations.

➢ The digital CPE does not transmit digital signals containing encoded analog content or billing

information which is intended to be decoded within the telecommunications network.

➢ The encoded analog and billing protection is factory set and is not under the control of the

customer.

I attest that the operator(s) maintainer(s) of the digital CPE responsible for the establishment, maintenance and adjustment of the encoded analog content and billing information has (have) been trained to perform these functions by successfully completing one of the following: Check appropriate ones(s).

❏ A. Training course provided by the manufacturer/grantee of the equipment used to encode

analog signals; or

❏ B. Training course provided by the customer or authorized representative, using training

materials and instructions provided by the manufacturer/grantee of the equipment used to encode analog signals; or

❏ C. Independent training course (e.g., trade school or technical institution) recognized by the

manufacturer/grantee of the equipment used to encode analog signals; or

❏ D. In lieu of the proceeding training requirements, the operator(s) maintainer(s) is(are) unde r

the control of a supervisor trained in accordance with _________above.

I agree to provide _______________________________________ with proper documentation to

(Telco’s Name)

demonstrate compliance with the information as provided in the proceeding paragraph, if so requested.

________________________________________________ (Signature)

________________________________________________ (Title)

________________________________________________ (Date)

Subscribed and Sworn to before me this ______day of ________________________, 19____.

________________________________________________

Notary Public

My Commission expires: ____________________________________

Verilink PRISM 3001 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual