Verilink PRISM 3002 User Manual

PRISM 3002

T1/FT1

CSU/DSU

34-00277

nd

2

Edition

i

Copyright Notice

Copyright © 1999 Verilink Corporation. All rights reserved.
This document do es not create any express or imp lied warranty about Verilink or about its prod-

ucts or services. Verilink’s sole warranty is contained in its product warranty. The end-user docu­mentation is shipped with Verilink’s products and constitutes the sole specifications referred to in
the product warranty. Verilink has made reasonable efforts to verify that the information contained
herein is accurate, but Verilink assumes no responsibility for its use or for any infringement of pat­ents or other rights of third parties that may result. The customer is solely responsible fo r verifying
the suitability of Verilink’s products for its use. Specifications are subject to change without notice.

Manual reorder # 34-00277

nd

2

Edition, May 1999

Trademarks

Verilink is a registered trademark Verilink Corporation.
Any named products herein are trademarks of their respective companies.

FCC Requirements

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 in which
case the user is required to correct the interference at his own expense.

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

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:

• This device may not cause harmful interference.

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

For Users of 1.544 Mbps Service

The following instructions are provided to ensure compliance with FCC Rules, Part 68.
1 All direct connections to T1 lines must be made using Part-68-compliant plugs and jacks.
2 The telephone company may require the following information when applying for leased-line

facilities.

Port ID: P/N FSG 3XX2/4
REN/SOC: 6.0 F
FIC: 04DU9-BN (SF)

04DU9-DN (B8ZS and SF)
04DU9-IKN (ESF)

04DU9-ISN(B8ZS and ESF)
USOC: RJ-48C
3 If the unit appears to be malfunctioning, it should be disconnected from the telephone lines until

you learn if 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.

ii

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

that the equipment is exceeding tolerable parameters, they can temporarily disconnect service. In
this case, the telephone company will give you advance notice, if possible.

5 Under FCC rules, no customer is authorized to repair this equipment. This restriction applies

regardless of whether the equipment is in or out of warranty.

6 If the telephone company alters its equipment in a m anner that will affect the us e of this device,

it must give you advance warning so that you can have the opportunity for uninterrupted service.
You will be adv ised of your right to file a complaint with the FCC.

7 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.

8 This equipment complies with Part 68 of the FCC rules. O n the left side (wh en facing the fron t)

of the 1024 chassis of this equipment is a label that contains, among other information, the FCC
registration number for this equipment. If requ ested, provide this information to the telephone
company.

Canadian Emissions Requirements

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

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.

Warranty

Verilink's product warranty covers repair or replacement of all equipment under normal use for a
five-year period from date of shipment. Replacement products may be new or reconditioned. Any
replaced or repaired product or part has a ninety (90) day warranty or the remainder of the initial
warranty period, whichever is longer. Our in-house Repair Center services on a standard 10-work­day-turnaround basis.

Customer Service

Verilink offers the following services:

• System Engineers at regional sales off ices for network design and planning assistance

[phone]

• Technical Assistance Center for free 24 ×7 telephone support during installation, maintenance, and

troubleshooting at [phone] and [e-mail]

• Return Materials Authorization (RMA) [phone], ext. 2282

• Maintenance contracts and leasing plans [phone], ext. 206

• T echnical Training on network concepts and Verilink products at [phone],

ext. 346 and [e-mail]

• W eb site at www.verilink.com

• F AX-On-Demand at [phone]

Returning Products

A product must be assigned a Return Materials Authorization (RMA) number before it is sent to
Verilink for repair. An RMA number is issued by Verilink Customer Service at [phone].
ext. 2282.

iii

Safety Precautions

When handling this equipment, follow these basic safety precautions to reduce the risk of electric
shock and injury:

• Follow all warnings and instructions marked on the product and in the manual.

• Unplug the hardware from the wall outlet before cleaning. Do not use liquid cleaners or aerosol

cleaners. Use a slightly damp cloth for cleaning.

• Do not place this product on an unstable cart, stand, or table. It may fall, causing serious damage to

the product.

• Slots in the unit are provided for ventilation to protect it from overheating. These openings must not

be blocked or covered. Never place this product near a radiator or heat register.

• This product should be operated only from the type of power source indicated on the marking label

and manual. If you are unsure of the type of power supply you are using, consult your dea le r or local
power company .

• Do not allow anything to rest on the power cord. Do not locate this product where the cord interferes

with the free movement of people.

• Do not overload wall outlets and extension cords, as this can result in fire or electric shock.

• Never push objects of any kind into the unit. They may touch dangerous voltage points or short out

parts that could result in fire or electric shock. Never spill l iquid of any kind on this equipment.

• Unplug the equipment from the wall outlet and refer servicing to qualified service personnel under

the following conditions:

• When the power supply cord or plug is damaged or frayed.

• If liquid has been spilled into the product.

• If the product has been exposed to rain or water.

• If the product has been dropped or if the housing has been damaged.

iv

Table of Contents

Copyright Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

FCC Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

For Users of 1.544 Mbps Service . . . . . . . . . . . . . . . . ii

Canadian Emissions Requirements . . . . . . . . . . . . . . .iii

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Returning Products . . . . . . . . . . . . . . . . . . . . . . . . . . .iii

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv

1 General

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

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

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Network Interface . . . . . . . . . . . . . . . . . . . . . . .1-3

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

Management Interfaces . . . . . . . . . . . . . . . . . . .1-3

Supervisory Port . . . . . . . . . . . . . . . . . . . .1-3

Dial Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

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

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

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

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

Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

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

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . .1-5

2 Installation

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

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

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

Port Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

NET (Network) . . . . . . . . . . . . . . . . . . . . . . . . .2-2

DBU (Dial Backup) . . . . . . . . . . . . . . . . . . . . . .2-2

Data Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Supervisory (SUPV) Port . . . . . . . . . . . . . . . . . .2-3

Power Connection . . . . . . . . . . . . . . . . . . . . . . .2-4

Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Network Management . . . . . . . . . . . . . . . . . . . . . . . .2-5

3 Hardware Configuration

and Testing

Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . .3-1

NMS Address . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

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

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

Received Loop Codes . . . . . . . . . . . . . . . . . . . 3-3

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

4 Terminal Configuration

and Testing

Interface Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

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

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

Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Element ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Menu Title . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Local/Remote Screen Indicator . . . . . . . . . . . . 4-3

Cursor Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

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

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

NET Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

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

Telco NET . . . . . . . . . . . . . . . . . . . . . . . . . 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) . . . . . . . . . . . . . . . . . . 4-8

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

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

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

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

NET PLB (Payload Loopback) . . . . . . . . 4-11

FAR PLB . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

NET LLB (Line Loopback) . . . . . . . . . . 4-11

FAR LLB . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

DTE MLB . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Far LLB . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Port Loop . . . . . . . . . . . . . . . . . . . . . . . . 4-12

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

FP Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

v

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

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

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

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

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

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

Errored Seconds . . . . . . . . . . . . . . . . . . . . . . . .4-13

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

Start Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Reset Errors . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

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

NET 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 . . . . . . . . . . . . . . . . . . . .4-16

PORT 1 . . . . . . . . . . . . . . . . . . . . . . .4-16

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

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

Channel Allocation . . . . . . . . . . . . . . . . . .4-16

Alarm Configuration . . . . . . . . . . . . . . . . . . . .4-17

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

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

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

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

Remote Alarm Seconds . . . . . . . . . . . . . .4-17

AIS Seconds . . . . . . . . . . . . . . . . . . . . . . .4-17

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

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

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

Port Configuration . . . . . . . . . . . . . . . . . . . . .4-18

Channel Allocation . . . . . . . . . . . . . . . . . .4-18

Port # . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18

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

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

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

Port Rate . . . . . . . . . . . . . . . . . . . . . . . . . .4-19

# of Channels . . . . . . . . . . . . . . . . . . . . . .4-19

Transmit Clock . . . . . . . . . . . . . . . . . . . . .4-19

LL (Local Loop) Detect . . . . . . . . . . . . . .4-19

RL (Remote Loop) Detect . . . . . . . . . . . .4-19

V.54 Loop . . . . . . . . . . . . . . . . . . . . . . . .4-19

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

CTS/DSR/DCD Control . . . . . . . . . . . . .4-20

Alarm on DTR Loss . . . . . . . . . . . . . . . . .4-20

Dial Backup Parameters . . . . . . . . . . . . . . . . . .4-20

Alarm Reset Timer . . . . . . . . . . . . . . . . . .4-20

Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Command . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Disable . . . . . . . . . . . . . . . . . . . . . . . 4-21

Enable . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Enable Daily . . . . . . . . . . . . . . . . . . . 4-21

Activate . . . . . . . . . . . . . . . . . . . . . . 4-21

Test . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Activator 1 . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Activator 2 . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Security . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Password . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

DTR Dialing . . . . . . . . . . . . . . . . . . . . . . 4-21

Dial String . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Init String . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Reset String . . . . . . . . . . . . . . . . . . . . . . . 4-22

Configure ISDN TA . . . . . . . . . . . . . . . . . 4-22

Activation Periods . . . . . . . . . . . . . . . . . . 4-22

Management Ports . . . . . . . . . . . . . . . . . . . . . 4-22

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

COA Connection (SUPV) . . . . . . . . . . . . 4-23

DISABLED . . . . . . . . . . . . . . . . . . . 4-23

DIAL . . . . . . . . . . . . . . . . . . . . . . . . 4-23

DIRECT . . . . . . . . . . . . . . . . . . . . . . 4-23

Primary Dial String and

Secondary Dial String . . . . . . . . . . . . . . . 4-23

Initialization String . . . . . . . . . . . . . . . . . 4-23

Disconnect String . . . . . . . . . . . . . . . . . . 4-23

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24

Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Set Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Set Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

New Password . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Maintenance Reset . . . . . . . . . . . . . . . . . . . . . 4-26

A Flash PROM Download

Procedure

Required

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

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

vi

1

G

ENERAL

Introduction

®

TRANSPORT

PWR

ALM

TST

DBU

NET

TST

LP

10

10

9
8
7
6
5
4
3
2
1

ON

1

S
U
P
V

3002

The Verilink PRISM 3002 is a modular, single port, fractional T1 CSU/DSU
designed to take advantage of T1 integrated access and provide the most
economical fractional T1 access solution available.

The PRISM 3002 allows connection of high-speed digital data to a T1 facility. The
data interface is a standard ITU V.35 and supports port rates from 56 kbps to 1.536
Mbps. Interface to the T1 network is through the 3002's integral ESF CSU which
provides full perfor mance monitori ng of the T1 span and is compliant with AT&T
publications TR62411 and TR54016 and with ANSI document T1.403.

The 3002 is equipped with integral dial backup capabilities and can be used with
any vendors switched service device such as an ISDN terminal adapter. Dial
backup can be initiated from stored alarm thresholds or from loss of the T1 facility

For high-density CSU/DSU sites, the PRISM 3002 can be used in conjunction with
the Verilink 8100A Site Controller. The 8100A incorporates an integrated Modular
Embedded Community Agent (MECA) providing SNMP/Telnet management
through a single IP address to access all its controlled units.

LED indicators are provided on the front panel of 3002 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. All configuration
parameters of the 3002 are soft selectable from the management system.

The Verilink PRISM 3002 CSU/DSU terminates a broad range of T1/ FT1
networking applications. It integrates LAN-to-LAN networking and disaster
recovery in managed or unmanaged environments.

The PRISM 3002 unit provides the T1 network connection through an advanced
integral ESF CSU. Full performance T1 span monitoring allows early detection
and correction of problems before they affect critical applications. The unit
provides a wide range of test functions and loopbacks to aid in rapid fault isolation
and repair and also responds to in-band fractional loop codes to accommodate
fractional T1 service te sting by the carrie r. An internal BERT allows testing of
both the network and equipment connections.

The PRISM 3002 is compatible with industry standards ensuring access to any T1
provided service and allowing connection of all equipment quickly and correctly.

Figure 1-1 PRISM 3002

1-2 GENERAL

An innovative design eliminates clocking problems on the high-speed data ports.
The unit uses Flash memory allowing firmware upgrades in the field eliminating
the need for taking units out of service for an extended time or returning units to
the factory for upda tes.

When connecting local area bridging or routing devices to a T1 network, other
CSU / DSUs are out of the LAN management loop. The critical T1 connection
point is under control of the existing SNMP management system, providing
seamless integration of LAN and WAN, and eliminating the need for a separate
CSU / DSU management system.

The PRISM 3002 may be provisioned through the terminal interface. The chapters
in this manual ar e arranged as fo llows:

1 General - Describes product features, specifications, and Verilink ordering

numbers.

2 Installation - Describes unit mounting, port connections, and powering.
3 Hardware Con figuration and Testing - Desc ribes hardwa re, includin g the LED

indicators, test buttons, and procedures for hardware testing from the front panel.

Features

4 Terminal Configuration and Testing - Describes all the parts of the unit menus and

their functions, including software testing procedures from the unit menu screens.

A Flash PROM Download Procedure - Describes a step-by-step procedure for

downloading the Flash PROM software for the PRISM 3002.

✦ Single port
✦ Integral ESF/ CSU provides full performance monitoring (meets TR62411,

TR54016, and T1.403 standards)

✦ Complete diagnostic capabilities
✦ Full T1 network management through

● a VT100-compatible terminal interface

● SNMP Thru Site controller

● 8100A Site Controller

✦ Programmable alarm thresholds
✦ Flash memory allows field software upgrades
✦ Dial Backup and automatic restoral of T1 line through an external device
✦ D4 or ESF line framing, AMI or B8ZS line coding
✦ Supports Fractional T1 services with flexible bandwidth allocation

Specifications

Specifications

1-3

Network

Interface

Equipment

Interface

Line Rate: 1.544 Mbps (± 50 ppm)
Line Framing: D4 or ESF
Line Code: AMI or B8ZS
Input Signal: 0 to -27 dB ALB O
Connection: RJ-48C jack, 100 Ω (± 5%)
Output Signal: 3.0 V (±10%) base-peak into 100 Ω with protection
Line Build Out: 0, - 7.5, -15, -22.5 dB attenuation
Transient Voltage: 1000 V protection, fused input and output
Jitter Control: per TR62411 and T1.403
Timing Source: Internal, recovered line clock, external DTE
Ones Density: B8ZS, N×56 bit stuffing, alternate fill; complies with

TR62411

DTE Ports: single port
Compatibilit y: Subminiatu re - D 26-pin, female IT U V.35
Data Rate: Synchronous, Ν×56 kbps or N×64 kbps (where N = 1 to 24);

independent selection on each port
Clocking: Internal, External, Oversample
Data Invert: May be enabled or disabled

Management

Interfaces

Supervisory Port

Connection: 8 - pin modular (RS-232)
Data Rates: 1.2, 2.4, 9.6, and 19.2 kbps

Dial Backup Connection: RS-232, 10-pin modular

Backup Service: PSTN or ISDN, sync or async
Configuration: Information for backup unit is stored in unit and transmitted

to backup un it by in-band AT commands
Dialing: Numbers programmed and stored in unit and transmitted to

backup unit by in-band AT commands or DTR dialing

(assertion)
Restoral: Manual or automatic restoral to leased line service

Diagnostics Performance: Monitoring per TR54016 and T1.403

Network Loops: Line loopback, payload loopback, or maintenance loopback in

the network direction
Fractional Loop: Responds to in-band V.54 loop code

1-4 GENERAL

DTE Port Loops: Bidirectional loop toward DTE and Net
BERT: Multiple test patterns toward network or DTE port

Alarms

Pow er

Mechanical

Environmental

Standards

Activation: Programmable thresholds
Reporting: Front panel LEDs, call out on alarm (COA), SNMP TRAPs

DC: 48 VDC, 167 mA, 8 W maximum, 27.3 BTU maximum

Mounting: Horizontal rack
Dimensions: Width 0.69 inches (1.75 cm)

Height 5.50 inches (14.0 cm)
Depth 11.0 inches (27.9 cm)

Weight: 0.66 pounds (0.30 kg)

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

TR 62411: December 1990
TR 54016: September 1989

Industry Listings

ANSI T1.403: 1989
TR 54019A: April 1988

FCC Compliance: Part 15 Class A, Subpart B, Part 68
U.S. Safety: UL 1950, 3rd Edition
Canadian Safety: CSA C22.2 No. 950 -95
Industry Canada: CS03, Issue 8

Ordering Information

1-5

Ordering
Information

The PRISM 3002 is available with a single V.35 data port (P/N F-3002-101-1110
is the default). Ordering options are listed in Table 1-1 using the following format
for a PRISM 3002:

F-3002-101--ABCDEFG

. Optional E quipment is p rovided in

Ta b l e 1 -2 .

Ta b l e 1-1

A Com pany 1
BSpecial 1
CDTE Port 1
D Option 0 - Not installed ----

Ta b l e 1-2

Part Number Opt ional Equipment

Network /T1 DTE Cables
9 -1001- 004
9 -1001- 051- 1
9 -1001- 006- 1
9 -1001- 006- 2
Supervisory Ca bles
9 - 1001-0 73-2
9-1001-091-1
9 -1544-619 -xxx†
V.35 Cables
9-1001-001-xxx
9 -1001-104 -xxx
9 -1001-103 -xxx
DBU Cables
9-1001-034-010
9-1001-081-xxx
9-1001-087-xxx
Adapters
9-1001-015-1
9-1001-074-1
9-1001-074-2

The three-digit xxx denotes feet for cables that can have customer-specified

lengths. For exa mple, 010 is a ten-foot c able.

† Cables ≥10 feet have a drain.

Unit Ordering Numbers

Description Option PMI Part #

- TxPORT 9-3002-101--1110

- Standard Unit - ---

- V.35 Unit ----

Optional Equipment

8 - pin mod to 8 - pin mod (4 twisted pairs)
T1 crossover kit, 1 ft
8 - pin mod to 15 -pin D-type adapter, male
8 - pin mod to 15 -pin D-adapter, female

DB-9 female to 8-pin (PC to SUPV)
DB-25 female to 8-pin (modem to SUPV)
8-pin RJ-48/RJ -48 pin to pin

V. 35 male to male (null)
Subminiature-D, 26-pin to V. 35 female
Subminiature-D, 26-pin to V. 35 male

10-pin to 10-pin modular (DBU)
10-pin to 8-pin DBU to ISDN interface
10-pin to 4-pin RJ-11 internal DBU modem

DB-25 pin /8 -pin modular
DB-25 male to 10-pin mo dular (modem to DBU)
DB-25 female to 10-pin modular (mo dem to DBU)

1-6 GENERAL

2

Figure 2-1 3002 Rear Panel

NET (Network)

DBU (Dial Backup

Data Port

I

NSTALLATION

This chapter contains instructions for physically installing the Verilink PRISM
3002 in a 1024 chassis as well as information concerning the communication ports
and power supply on the rear of the unit.

Unpacking and
Inspection

Supplied
Materials

Mounting

After receiving the shipment, inspect the shipping container and contents. If the
contents of the shipment are incomplete or, if there is mechanical damage or
defect, notify Verilink Customer Service. If the shipping container or cushioning
material is damaged, notify the carrier and Verilink immediately and make a
notation on the delivery receipt that the container was damaged (if possible, obtain
the signature and name of the delivery person). 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.

The baseline PRISM 3002 shipment contains three items:

✦ PRISM 3002 unit
✦ T1 network cable (P/N 9-1544-619-009)
✦ Reference manual with configuration guide

Specific applications may require additional cables and adapters. Ordering
information is located on Table 1-2 on page 1- 5. Contact Verilink Customer
Service for further assis tance.

The Verilink 3002 is a modular unit that plugs
into a Verilink 1024 chassis which holds up to
24 units.

The chassi s can be installe d in eit her a 19- or
23-inch rack using four screws.

V.35

The 3002 is designed for convection cooling.
Mount the 1024 chassis with a top and bottom clearance of at least 1¾ inches.

2-2 INSTALLATION

Port Connections

(Network)

NET

The front of the PRISM 3002 has one port connection: the Supervisory (SUPV),
discussed on page 2-3. The rear of the PRISM 3002 has three port connections:
DBU, NET, and Data Port as shown in Figure 2-1.

The network (NET) port provides connection to the network and contains an automatic
line build out (ALBO) allowing the unit to be located a substantial distance away from
the telco network interface with a receive signal level down to -27 dB.

The network inte rface LBO
level should be set as instructed
in section Line Parameters on
page 4 -15. Maximum suggested
cable lengths for the connection
from the unit to the network are
listed in Table 2-1. Ca lculations
are based on a 70°F cable
temperature, a 0.083-µF/mile

Ta b l e 2-1

Cable Type

26-gauge PIC 6.8 dB 4,400 ft
24-gauge PIC 5.4 dB 5,500 ft
22-gauge PIC 4.2 dB 7,100 ft
19-gauge PIC 3.0 dB 10,000 ft

PIC - Plastic Insulated Cable

Maximum Cable Lengths

Loss per
1000'

Max Cable
Length

capacitance, a 27- dB line loss,
and a 100-Ω, non-loaded,
twisted pair cable.

The network physical interface is a standard

Ta bl e 2 - 2

Network Interface Pinout

RJ-48C 8 - pin modular jack. Table 2-2
displays the pinout assignments.

In accordance with FCC Rules, Part

68.218(b), notify the telephone company before disconnecting this product.

Pin T1 NET Interface

1 Data In (Tip)
2 Data In (Ring)
3, 6 Not used
4 Data Out (Tip)
5 Data Out (Ring)
7, 8 Chassis Ground

DBU
(Dial

Backup)

The Dial Backup port provides an alternate path
when the T1 network interface service is disrupted
or perform ance quality is degraded. This port is a
10-pin RS-232 port that can connect, through a
connector adapter, to a public switched digital
network (PSDN) device such as a Verilink PS500.
Table 2-3 displays the pinout assignments. See Dial
Backup Parameters on page 4 - 20 for more
information.

Ta b l e 2-3

Pin Connection

1 Rx Clock In
2 DTR Out
3RTS Out
4 Frame Ground
5 Data Out
6 Data In
7 Signal Ground
8CTS In
9 DCD In
10 Tx Clock In

DBU Port Pinout

Port Connections

Ta b l e 2-5

SUPV Port Pinout

Pin Signal

1DTR Out
2RTS Out
3 Frame Ground
4 Data Out
5 Data In
6 Signal Ground
7 CTS In
8DCD In

2-3

Data Port The Data Port provides connection to the customer equipment. Pinouts for the

backplane connector and both high-speed port interfaces are listed in Table 2-4.
Default settings route all available DS0s to the DTE port.

FCC rules require that interconnecting cables carrying high-speed data be shielded
appropriately to minimize radio frequency interference.

Supervisory (SUPV) Port

Ta b l e 2-4

Common Name

Frame Ground 1 1 A
Transmit Data 2, 14 2, 14 P, S
Receive Data 3, 16 3, 16 R, T
Request to Send 4 4, 19 C
Clear to Send 5 5, 13 D
Data Set Ready 6 6, 22 E
Signal Ground 7 7 B
Data Carrier Detect 8 8, 10 F
Transmit Clock 15, 12 15, 12 Y, AA
Receive Clock 17, 9 17, 9 V, X
Local Loopback 18 18 J
Data Term Ready 20 20, 23 H
Remote Loopback 21 21 BB
Terminal Timing 24, 11 24, 11 U, W

High-Speed DTE Interface

EIA-530

Backplane

EIA-530

DB-25

V.35

34 -pin

The front panel supervisory (SUPV) port can serve
several functions. The unit’s terminal interface may
be accessed through this port (see Interface Start-up
on page 4-1) as well as the Call On Alarm feature on
page 4 - 23. This port may be accessed through either
a direct connection or a dial-up connection using an
AT-command-set-compatible modem. The modem
should be optioned to ignore DTR, enable auto
answer, inhibit command echo, and return verbose
result codes. Serial bit rates can be set from 1200 bps
to 19200 bps. Refer to Table 2-5 for the pinout and to
Figure 2 -2 for typical termi nal/modem cable
diagrams.

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

2-4 INSTALLATION

The SUPV port bit rates are configured through Switch S1 (see SUPV Port Bit
Rate on page 3- 2) and programmed through the Management Ports menu on page
4 - 22. This port is a DCE port configured for 8 bits, no parity, and 1 stop bit. The
physical connections are 8 - pin modular jacks (electrically RS-232). Figure 2-2
provides the pinout assignments. Refer to Table 1-2 on page 1 - 5 for cable
information.

DTR Out 1
RT S Out 2
Frame Gnd 3
Data Out 4
Data In 5
Signal Gnd 6
CTS In 7
DCD In 8

8-Pin

Modular

Pow er

Connection

Modem (DCE)SUPV Port

20 DTR
4RTS
1Frame Gnd
2 TXD
3RXD
7 Signal Gnd
5CTS
8DCD

DB-25

Figure 2-2

SUPV Terminal /Modem Connections

Power to the 3002 is supplied
through the card-edge connection
when the unit is in stalled in the
1024 chassis. The 3002 requires a

- 48 VDC power source capable
of supplying a 150- mA current
from the chassis. All units in the
chassis are powered by -48 VDC
sources which are connected to
the 6 - position terminal strip,
TB1, on the rear of the 1024
chassis as sh own in Figure 2-3.

DTR Out 1
RTS Ou t 2
Frame Gnd 3
Data Out 4
Data In 5
Signal Gnd 6
CTS In 7
DCD In 8

8-Pin

Modular

Verilink
1042
Power
Supply

PS A

PS B

Figure 2-3

–
+

GND

–
+

GND

Wiring for a Single Power Source

PC (DTE)SUPV Port

1 DCD
8 CTS
5Frame Gnd
2 RXD
3TXD
NC Signal Gnd
7 RTS
4 DTR

DB-9

1 +48VDC IN A
2
3 -48VDC IN A
TB1
4 -48VDC IN B
5
6 +48VDC IN B

Verilink
1024
Chassis

Pow e r

Failure

The PRISM 3002 provides non -volatile memory retention of the unit configuration
in case of a power failure. This feature allows the unit to automatically restore
normal service following a power loss. When power is applied to the unit, the front
panel indicators flash for approximately five seconds as the unit starts up.

Network Management

2-5

Network
Management

Network management is performed through the SUPV port and the NMS port.
these ports allow connection of devices such as an 8100A Site controller (with
optional SNMP management), modems, and terminal devices. The SUPV port can
support any one of the three, whereas the NMS port can only support the 8100A
Site Controller. It is recommended that the supervisory port be used with a
terminal or modem, and the NMS port be used with the 8100A Site Controller. The
terminal and modem configurations are explained in section Supervisory (SUPV)
Port. The NMS port is made available through the card edge connector when the
card is placed in the 1024 chassis. The 1024 chassis creates a communications
daisychain from one card to the next, from one end of the chassis to the other. The
1024 chassis provides modular connectors where the 8100A Site Controller can
complete the chain. An example chain is shown in Figure 2-4. There are different
NMS configurations available with the 8100A Site Controller and this information
is provided in the 8100A configuration guide and manual.

All units on the same NMS chain must use the same NMS bit rate and have different
addresses ( see NMS Ad dress on page 3-2) .

8100A

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

Element #1

Element #2

Last Element

Figure 2-4

NMS IN OUT

NMS IN OUT

NMS IN OUT

NMS Daisy-chain Arrangement

2-6 INSTALLATION

3

H

ARDWARE

Controls and Indicators

®

TRANSPORT

PWR

ALM

TST

DBU

NET

TST

LP

10

10

9
8
7
6
5
4
3
2
1

ON

1

S
U
P
V

3002

Figure 3-1 3002 Front

1
2
3

4
5

6

7

8

9

10

C

ONFIGURATION AND

T

ESTING

This chapter contains general operating instructions for the Verilink PRISM 3002
front panel. The unit may be controlled manually using both the front panel
buttons and the configuration switches. Chapter 4, Terminal Configuration and
Testing, di scusses the firmwa re controlled terminal inte rface program , which
provides the maximum amount of control.

The NMS address and supervisory (SUPV) port bit rate are set using the dual in-line
package (DIP) switches located on the front panel of the unit (see Figure 3-1). A
removable configuration guide (45-00121) is included in the back of this manual.
Figure 3-1 depicts the front panel which has five LED indicators, two control
buttons, a 10-position DIP switch, two viewing holes, the SUPV port, and the
extractor/card lock. Table 3-1 references these controls and indicators.

Ta b l e 3-1 PRISM 3002 Controls and Indicators

Index Feature Function/Descrip tion

1 PWR

(green)

2 ALM

(red)

3TST

(3-color)

4 DBU This indicator is on when the unit is in di al b ac kup mode.
5 NET

(3-color)

6 TST When this button is pushed onc e, the unit transmits five seconds of in-band LLB code

7 LP When this momentary push button is pushed once, the unit activates a line loopback,

8 See NMS Address and SUPV Port Bit Rate on page 3- 2.
9 These two small, recessed LEDs indicate supervisory and network manager port activity.
10 SUPV See SUPV Port Bit Rate, Supervisory Por t, and Upgradi ng Software on page 3-3. For

11 Extractor/ Card Lock

This LED lights continuously whe n power is applied to the unit.

This LED lights continuously whe n the unit is in an active alarm condition.

Flashing Green: The unit is transmitting loop code.
Solid Green: BERT is on with no errors or the unit is in clear test.
Red: BERT is on and receiving errors.
Amber: The unit is looped.

Green: T h e unit is in frame sync.
Amber: The unit is receiving a yellow alarm from the far end.
Red: The unit is ou t of frame sync and/or has loss of signal.

(see Figure 3-3 on page 3 -3) out to the network and performs a T1 NE T BERT. The
indicator blinks green during transmission of the loop code.
If the TST button is pushed again, the unit transmits five seconds of in-band loop down
code and returns to normal operating mode. The TST indicator then turns off.

looping the network receive data back to the network, and looping the data from the
DTE ports back to the DTE. The TST indicator is amber while the unit is looped. If
pushed again, the unit clears the loop and turns off the TST indicator.

the pinout, see Data Port on page 2-3.

3-2 HARDWARE CONFIGURATION AND TESTING

NMS Address

Switches S1-1 through S1-8 set the NMS address. When using the 3002 with an
8100A Site Controller, each element must have a unique unit address. The 8100A
Site Controller can address up to 100 units (with addresses from 1 to 100). If the
unit is not connected to a site controller, the NMS unit address should remain at
the factory default setting of 1

where Position 1 is Left and all other positions are

Right.

Switch positions S1-1 through S1-8 are used to create an 8- bit binary code for an
address in the range of 1 to 253. Switch position S1-1 is the least significant bit
(LSB) and S1- 8 is the most significan t bit (MSB). If a switch is R ight, its value is

0. If Left, its value is that shown on the left. The values are additive. For example,
to set a unit address to 5, position S1-3 (value is 4) and position S1- 1 (value is 1)
would be set Left for a unit address of 5 (4+ 1). All other positions would be set
Right. If all the switches are Right, the address is 1.

Left Right

SUPV Rate

SUPV Rate

128

64

0

0

SUPV Port

Bit Rate

32

16

8

4

2

LSB MSBBinary values

1

Figure 3-2

Switch S1

0

0

0

0

0

0

12345 678910

Switch S1-9 and S1-10 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 3 -A shows the
available speeds.

Table 3-A SUPV Port Bit Rate

S1 -9 S1 -10 SUPV Port Rate

Left Left 1.2 kbps
Right Left 2.4 kbps
Right Right 9.6 kbps
Left Right 19.2 kbps

Upgrading Software

Supervisory Port The supervisory port serves several functions by allowing the connection of

devices such as an 8100A Site Controller, modems, and terminal devices, however
it is recommended that the supervisory port be used with a terminal and/or modem
for configuring, status, and performance data gathering. The 8-pin modular RJ-48C
jack, as shown in Figure 3-1, provides direct terminal connections with the pinout
shown in Table 2-5 on page 2-4. For possible cable configurations, refer to
Figure 2-2 on page 2-4.

3-3

To Network

4
5

RJ-48C
1
2

From Network

Received Loop

Upgrading
Software

Network Interface Framer/Deframer Multiplexer Receivers/Drivers

From

NET

To

NET

Receivers/DriversFramer/Deframer

NET
LLB

BERT Generator/

Detector

Figure 3-3

From
Ports

To

Ports

Network LLB

The PRISM 3002 responds to in-band loop codes received in ESF or D4 framing

Codes

mode and FDL loop codes received in ESF framing mode. Response to network
loop codes complies with TR54016 and T1.403 (1989) specifications. With either
line loopback (LLB) or payload loopback (PLB), the data from the DTE ports is
looped back to the DTE equipment. In a fractional V.54 loopback, the data port
does a bidirectional loopback.

The TEST and LOOP buttons can be used to set the SUPV port rate when
upgrading software for the 3002 (see page A- 2).

(100' max.)

EIA-530 or V.35

3-4 HARDWARE CONFIGURATION AND TESTING

4

T

ERMINAL

Interface Start-up

C

ONFIGURATION AND

T

ESTING

The terminal interface is an embedded firmware applicatio n program. T his
information can be accessed through the SUPV port (see Supervisory (SUPV) Port
on page 2-3).

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

Once a compatible terminal is properly connected to the unit, a terminal interface
session can be started by sending a break command to the unit (or by pressing
Enter four ti mes). The M ain Menu s creen. (Figure 4-1) is displayed if a password
has not been specified.

If a password has been previously established, the correct password must be
entered to continue the session.

The password is ca se - sen sitive.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
3002 DSU 1.00/2.10 Time: 08:35:47

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

Element: [NEAR]

Alarms
Performance
Maintenance
Configuration
Utilities

------------- --- -- -- -- --- -- -- -- --- - Me ss ag es -- -- -- --- -- -- -- --- -- -- -- --- -- -- -- -­ Local Screen

Figure 4-1 Main Menu Screen

4-2 TERMINAL CONFIGURATION AND TESTING

If the password is not available, note the date and time shown on the screen and
contact Verilink Technical Support. A password can be established through the
Utilities screen on page 4-25.

Menu Structure

The Main Menu screen lists the functional user-accessible menus. To activate a
menu, highlight the desired selection and press Enter. To exit this or any
subsequent menu, press Esca pe. If the Main Me nu is exited, the ter minal interface
program terminates. This is a valid way to end a session. If any other menu is
exited, the previous sc reen is return ed. The menu stru cture (Figure 4-2) shows all
the screens accessible from the Main Menu.

Log

On

MAIN

MENU

Log

Off

Figure 4-2

Ter minal Interface Menu Structure

If a keystroke is not entered for 10 minutes, the terminal interface logs off
automatically

Alarms

Performance

Maintenance

Configuration

Utilities

Standard 24-Hour
Standard 30-Day
Enhanced 24-Hour
Enhanced 30-Day

Line Parameters
Alarm Parameters
Port Parameters
Dial Backup
Management Ports
Summary

Screen
Components

Device Type

and Revision

Date and

Time

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

The device type (such as PRISM 3002) and the revision control numbers are
shown in the uppe r left corner. The first number is the hardware revision and the
second numbe r is the software r evision. Informatio n is displayed for the near-end
unit (connected directly to the terminal) on the top line, and for the far-end unit
(connected to the network T1 interface) on the second line. Refer to this
information when contacting Technical Support with inquiries.

The far-end information is available only for Verilink products that support a
proprietary message set. If the far- end equipment does not support these messages
but supports the standard 54016 protocol, then the far-end information is displayed
as GENERIC 54016 FAR END. If the far-end equipment does not respond to
either proprietary or 54016 messages, then NO FAR END RESPONSE is
displayed. If the far end echoes the FDL messages transmitted by the near-end
unit, then FAR END LINE LOOP 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 on page 4- 25.

Cursor Controls

4-3

Element ID Below the header (PRISM 3002), the Element ID is displayed. Refer to Element

ID on page 4- 22 for information.

Menu Title The menu title (third line, center) denotes the general classification of functions,

such as MAIN or PERFORMANCE, currently accessible by the user.

Messages Diagnostic messages may be displayed at the bottom of the screen.

Local / Remote

Screen Indicator

Cursor
Controls

Identifies the visible screen as displaying the local, remote, or proxy interface. The
unit automatically determines the necessary interface when connected to the
far-en d uni t.

The local interface allows configuring the local Verilink unit. The remote interface
allows configuring Verilink units at a remote site. The proxy interface allows
configuring Verilink units that do not support the remote screen interface.

The terminal interface uses a hig hlighted cur sor to make select ions from menu s
and select fields within screens to be operated on. The cursor is moved in different
ways, depending on the terminal emulation program used. Most programs allow
use of the Tab and Shift + Tab keys. Others allow use of the arrow keys. Once a
field is highlighted, it is manipulated as described in section Field Types.

For keyboards without these standard keys or only some of them, an alternate set
of cursor control commands is provided. Each command is performed by pressing

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

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

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

Figure 4-3

Terminal Interface Layout

4-4 TERMINAL CONFIGURATION AND TESTING

a letter key while holding down the Control key. Alternate commands may be
freely mixed wi th the keyboard c ommands.

Field Types

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

Keyboard / Alternate Commands

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

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

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

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

✦ Pressing Enter on such fields as (Reset) and (Start Test) simply executes the

function.

✦ The most common type of fi eld in parenthesis accepts typed input in the form of

letters and/ or numbers. Typing characters when the field is highlighted causes the
current entry to be replaced with the new characters. To edit an existing entry
rather than re place it, press the r ight-arrow key to move th e cursor to the point that
needs editing. Characters may then be inserted or deleted. Typed data is always
inserted rather than typed over. If the field is full, though, at least one character
must be deleted to add another.

Many fields of this type may also be toggled by pressing the spacebar. Other fields
are range checked, where the program is not allowed to exit with an illegal value set.

Any screen may be re displayed or refre shed by pressi ng Control+ U. Any changes to fi elds
that have not been activated by pressing the Enter key are discarded.

Alarms Screen

4-5

Alarms Screen

NET Alarms These status lines display the selected element’s current network signal alarm state

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

(Table 4-2). Alarms are determined by the selectable thresholds in the Alarm
Configuration screen (see Figure 4-8 on page 4 - 17).

Ta b l e 4-2

Alarm Description

------- No status is available.
OK No alarm threshold has been exceeded, although errors

ERRS The Errored Seconds, Severely Errored Seconds, or

LOSS The Loss Of Signal Seconds threshold is exceeded.
OOFS The Out Of Frame Seconds threshold is exceeded.
RAIS The Remote Alarm Seconds threshold is exceeded.
AISS The Alarm Indication Seconds threshold is exceeded.
UAS The Unavailable Seconds threshold is exceeded.
DBA Dial Backup Active.
DBF Dial Backup Failed.

NET Alarm Indicators

may exist which do not exceed thresholds.

Bipolar Errored Seconds threshold is exceeded.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:36:09

------------ -- --- -- -- -- --- -- -- -- --- - AL AR MS -- -- -- --- -- -- -- --- -- -- -- --- -- -- -- --­ Element: NEAR]
NET Alarms: NONE
DTE Alarms: NONE
Current Threshold
Loss of Signal Seconds (LOSS): 0 5
Errored Seconds (ES): 0 45
Severely Errored Seconds (SES): 0 5
Unavailable Seconds (UAS): 0 0
Out of Frame Seconds (OOFS): 0 5
Remote Alarm Seconds (RAS): 0 0
AIS Seconds (AISS): 0 0
BPV Seconds (BPVS): 0 0
Power Loss Seconds (PLS): 0

Reset Alarm Registers: (RESET)

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-4

Alarms Screen

4-6 TERMINAL CONFIGURATION AND TESTING

DTE Alarms

These status lines display the selected element’s current DTE signal alarm state
(Table 4-3). Alarms are determined by the selectable thresholds in the Alarm
Configuration screen (see Figure 4-8 on page 4 - 17).

Ta b l e 4-3

Alarm Descript ion

OK No alarm threshold has been exceeded, although

PORT 1 DTR Alarm on PORT 1.

DTE Alarm Indicators

errors may exist which do not exceed thresholds.

Selectable thre sholds in the Alar m Parameters screen a nd the DTR Alarm may b e
enabled or disabled for the ports in the Port Parameters screen.

(alarm status)

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

The Current co lumn displays a total of the preced ing 15 one -minute inter vals. At
the end of each one-minute interval, the oldest minute of the 15 - minute interval is
discarded.

The Threshold column displays the values set in the Alarm Configuration screen
(see Figure 4-8 on page 4- 17). Parameters having a current value equal to or
greater than its non-zero threshold generates an alarm. Any parameter with a
threshold value of zero is disabled from generating alarms.

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

Power Loss Seconds

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

Reset Alarm Registers

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

Element Pressing the spacebar then Enter toggles this field for selection of either the NEAR

The Performance screens (Figure 4-5) display a detailed history of the continuously
monitored er ror parame ters. The terminal i nterface prov ides a dis play of n ear-end
or far-end performance data using the facility data link.

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

The system has four Performance screens. The Standard 24 Hour and the
Enhanced 24 Hour screens allow viewing the 24-hour detailed performance history
of the T1 circu it. The only difference in the two screen s is in the type of
performance data displayed. The Enhanced 24 Hour screen is shown in Figure 4-5.

The Standard 30 Day and the Enhanced 30 Day screens allow viewing a 30- day
history of a particular element’s performance. These screens reference intervals by
date rather than by time. To reach each of the four screen types, use the spacebar
to toggle the Standard 24 Hour field. The other fields are described as follows:

or FAR unit as the source of performance data or the target of commands. NEAR
refers to the un it to which the te rminal is conne cted. FAR refers to the unit at the
other end of the network T1 span.

Target This field selects the display of User or Te lco performance registers. Telco

registers are for viewing only and may not be changed. The options are:

User NET

Display the user performance registers for the network.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:39:15

------------------------- ENHANCED 24 HOUR PERFORMANCE ------------------------­ Element: [NEAR] Status: OK
Target: [USER ] [NET] Completed Days: 1
Error Events: 65535 (RESET) Completed Intervals: 96
(RESET PERFORMANCE REGS) 24 Hr. % Error Free: 99.3
[ENHANCED 24 HOUR]
312 0 0 0 0 0 0
24 Hour 660 6 0 0 0 660
30 Day 660 6 0 0 0 660

--------------------------------------------------------------­ Time INTERVAL CRCES OOFS LOSS AISS RAS BPVS

--------------------------------------------------------------­ 08:34 96 660 6 0 0 0 660

------------- --- -- -- -- --- -- -- -- --- - Me ss ag es -- -- -- --- -- -- -- --- -- -- -- --- -- -- -- -­ Local Screen

Figure 4-5

Typical Performance Screen

4-8 TERMINAL CONFIGURATION AND TESTING

Telco NET

Display the telco performance registers for the network.

Error Events

Reset Performance

Registers

Standard

24 Hour

This field displays the running total of ESF error events for the circuit selected in
the Element field 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 the
Target field is set to US ER. If Enter is pressed, the following warning appears:

DELETE ALL PERFORMANCE DATA?

(NO!) (YES)

To exit this screen wit hout perfor ming the reset fu nction, press E nter with NO
selected. To proceed with the reset function, press Enter on YES. All values for the
register are the n reset to zero .

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

The remainder of the fields in the Performance screen are for display only. They
are defined as follows:

Status

Displays th e selecte d T1 line status de rived from the type (or ab sence) o f errors i n
the received data. This 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 status conditions listed in the section on page 4- 14.

Completed Days

Displays the number of days which are included in the 30- day totals.

Completed Intervals

Displays the number of 15- minute intervals in the last 24 - hou r period sin ce the
registers were last cleared (a 24 - hour period may contain up to 96 intervals).

24 Hr. % Error Free

Displays the percentage of error free seconds within the last 24 hours or since the
event registers were last cleared (based only on the ES and UAS parameters).

(performance data)

The main body of display data consists of error events for three different
periods: The first display line shows the data accumulated for the current
15-minute inte rval (from 0 to 900 seco nds). The seco nd line shows the tota ls for
the last 24- hour period (the last 96 fifteen- minute intervals). The third line shows
the 30 -day totals .

Performance Screens

4-9

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
30 - day screens) of the interval 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-UP appears once PAGE-DN is used. Pressing Enter on PAGE -UP
displays the previous five errored intervals. Only intervals containing errors are
displayed, eliminating rows of zeroes. If an interval is not displayed, no errors
were detected during that time period.

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

Per AT&T TR54016, the Standard 24 Hour and Standard 30 Day performance data
consists of Errored Seconds (ES), Unavailable Seconds (UAS), Bursty Errored
Seconds (BES), Severely Errored Seconds (SES), 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 Bipolar Violation 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 CONFIGURATION AND TESTING

Maintenance Screen

The Element Maintenance screen (Figure 4-6) allows performing loop-test and
BERT functions on the T1 circuit. Loops can be activated and cleared and the
BERTs performed. A BERT is performed by using on- board test facilities. No
other test equipment is needed. Some of these tests may also be activated by the
front panel push buttons as described in Controls and Indicators on page 3-1.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:41:11

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

BERT: [T1 NET ]
(CLEAR TESTS) Pattern: [QRSS ]
(CLEAR ALARMS) Test Length: [Cont. ]

T1 Loop: [FAR PLB] Pattern Sync: NO TEST
T1 Unloop: [FAR PLB] Elapsed Time: 00:00:00
Bit Errors: 0
Port Loop: Errored Seconds: 0
Port Unloop: % EFS: 100

FP Buttons: [ENABLED ] (START TEST)
(RESET ERRORS)
T1 NET Status: OK

Near Loops:
Far Loops:

------------- --- -- -- -- --- -- -- -- --- - Me ss ag es -- -- -- --- -- -- -- --- -- -- -- --- -- -- -- -­ Local Screen

Clear Tests

Clear Alarms

T1 Loop

Figure 4-6

Element Maintenance Screen

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

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

The type of T1 loop is chosen by toggling the spacebar and is executed by
pressing Enter. This unit supports payload loopbacks, line loopbacks, maintenance
loopbacks for both the near and far ends of the network and DTE interfaces.

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

Maintenance Screen

4-11

The type of T1 loop is chosen by toggling the spacebar and is executed by pressing
Enter.

4
5

1
2

4
5

1
2

From Network

To Network

RJ48C

From Network

To Network

RJ48C

Network Interface

Framer/Deframer multiplexer Receivers/Drivers

From

NET

To

NET

Framer/Deframer

Receivers/Drivers

BERT Generator/

Detector

From
Ports

To

Ports

Normal Operation

NET PLB (Payload Loopback)

The received network signal is looped back toward the network with signal
regeneration and framing and CRC regeneration. During the NET PLB, all 1s are
transmitted to the DTE. The NET PLB may be activated by receiving out-of-band
loop code on the network receive signal or by selection in the user interface
maintenance screen.

Network Interface Framer/Defra mer multiple xer Receivers/Drivers

From

NET

To

NET

Receivers /DriversFramer/Deframer

All ones

NET
PLB

BERT Generator /

to DTE

Detector

From
Ports

To

Ports

(100' max.)

DTE (EIA-530 or V.35)

(100' max.)

EIA-530 or V.35

Network PLB

FAR PLB

A NET PLB can be activated on the remote end unit through this selection.

NET LLB (Line Loopback)

The received network signal is looped back toward the network with signal
regeneration only (framing and CRC intact). During the NET LLB, data from the
DTE is looped back to the DTE. The NET LLB may be activated by receiving
in-band or out-of-band loop code on the network receive signal, by the front panel
loop switch, or by selection in the interface maintenance screen.

4-12 TERMINAL CONFIGURATION AND TESTING

FAR LLB

A NET LLB can be activated on the far-end unit through this selection or through
the front panel TEST button.

4
5

1
2

From Network

4
5

1
2

To Network

RJ48C

To Network

RJ48C

From Network

Network Interface Frame r/D eframer multiplexer Receivers/D ri vers

From

NET

To

NET

Receivers/ DriversFramer/Deframer

NET
LLB

BERT Generator /

Detector

From
Ports

To

Ports

Network LL B

DTE MLB

The DTE MLB command loops all network data back toward the DTE ports at the
network interface. Data is passed through to the network. Set the T1-NET Timing
to Internal when this loop is enabled.

Network Interface Framer/Deframer m ultiplexer Receivers/Drivers

From
NET

To

NET

Framer/Deframer

Receivers/Drivers

DTE

MLB

From
Ports

To

Ports

(100' max.)

EIA-530 or V.35

(100' max.)

EIA-530 or V.35

BERT Generator /

Detector

DTE MLB

Far LLB

This field appe ars when th e T1 Loop i s set to Far LLB . Val id option s for this field
are Framed and Unframed

. This setting must match the far-end unit loop code

framing.

Port Loop

This field is used to loop a high-speed data port from the network back to the
network and data from the DTE back to the DTE. The Port Loop may be activated
by receiving in-band V.54 fractional loop code or by this field. The Port Loop only
has ports with channels allocated to them as selections. Ports without channels
allocated a ppear as blan k fields

A Port Loop is activated on the remote-end unit through this field or by the front
panel test swi tch. The test sw itch can be used to activate a remote Port 1. Th is

Maintenance Screen

4-13

causes the unit to transmit in-band V.54 fractional loop code toward the network in
the port’s bandwidth.

To Network

4
5

1
2

From Network

RJ48C

Network Interface Fr amer/Deframer multiplexer Receivers/Drivers

To

NET

From

NET

Framer/Deframer

DTE

Near/Far

Receivers/Drivers

BERT Generator/

Detector

From
Ports

To

Ports

Port Loop (bidirectional)

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

FP Buttons This field al lows enabli ng

or disabling the Test and Loop buttons on the unit front

panel.

BERT This field selects the interface and direction for the test pattern transmission. The

choices are T1

NET, One NET, One DTE, Channel 1 - 24, and IDLE. The internal
BERT may also be activated through the front panel test switch as specified in
Controls and Indicators on page 3-1.

(100' max.)

EIA-530 or V.35

Pat t e r n Specifies the pattern to be transmitted during a test. Modifying this field does not

cause the pattern to be transmitted (refer to on page 4-14). The choices are QRSS

15

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

.

Test

Length

Pat t e r n

Sync

63, 511, 2047, 2

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

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).

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 bit error seconds and sync loss seconds.

,

4-14 TERMINAL CONFIGURATION AND TESTING

% EFS

Start

Tes t

Reset

Errors

Line Fault and

Loop Status

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

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.

Pressing Enter with the cursor on this field causes the test error results to be
cleared to ze ro.

The following field s are for display o nly. They reflect the selected t est parame ters
and the results of these tests only:

NET Status

This field displ ays the fault st atus of the netwo rk. It indica tes current faul t
conditions. It does not indicate that alarm thresholds are exceeded. Status
indications are described in Table 4-4.

Ta b l e 4-4

Status Description

------- No status is availab le
OK No er rors are currently detected.
ERR Frame bit errors, CRC errors, or BPVs are detected.
LOS A loss of signal condition exists.
OOF An out of frame condition exists.
RAI Far end is receiving a remote alarm indication signal.
AIS The far end is receiving an alarm ind ication signal.
UAS An unavailable signal state exists due to consecu tive

Status Indications

severely errored seco nds.

Near Loops

Far Loops

Configuration
Screens

Displays the loop status of the near element.

Displays the loop status o f the far element .

The Configuration screens allow viewing and setting configuration parameters for
the network elements.

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

Configuration Screens

4-15

Line

Parameters

The Line Parameters screen (Figure 4-7) allows reviewing and setting line
parameters for the selected element on the T1 circuit. This screen has the following
fields, most of which have user-selectable options. To send the new line
configuration to the unit, either press Enter on one of the fields, change the
Element selection, or exit the screen.

T1 - NET Framing

Selects the type of framing for the network side of the element as either ESF and

D4.

T1 - NET Line Code

Sets the network side line coding as either AMI and B8ZS.

T1 - NET LBO

Sets the line build out fo r the network interface as either 0 dB, -7.5 dB, -15 dB, or

-22.5 dB.

PRM Enable

This field allows the T1.403 Performance Report Message, which is sent once a sec­ond, to be Enabled and Disabled.

Zero Suppression

This field determines whether ones-density insertion is activated after 15 zeros.
The choices are Enable and Disable.

T1 - NET Timing

Sets the timing source to synchronize the unit’s internal timing generators. Slips
are controlled to occur on frame boundaries at the network and DSX1 ports when
timing synchronization is lost.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:41:53

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

Element: [NEAR]

T1-NET Framing: [ESF ] Rem Comm Channel: ( 0)
T1-NET Line Code: [B8ZS ]
T1-NET LBO: [0 dB ]
PRM Enable: [DISABLE ]
Zero Suppression: [ENABLE ]
T1-NET Timing: [Internal]

Channel Allocation: ------ ------ ------ ------

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-7

Line Parameters Screen

4-16 TERMINAL CONFIGURATION AND TESTING

INTERNAL. The unit’s internal frequency standard is used for all timing.
PORT 1. Timing is synchronized to the external terminal timing clock supplied

from the DTE and connected to the selected port.

Verify that the external DTE clock is operating at the data rate selected for Port 1.

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

use this selection).

Remote Comm Channel

This field selects a communication link to the far- end unit. Either a DS0 channel
(1 through 24) or use an ESF facility data link (0) can be assigned. If 0 is selected,
communication is established over the ESF facility data link (this is valid only
when the network interface is configured for ESF and the FDL has end- to -end
integrity). For examp le, the entire T1 bandwidth must be available to the user with
no intervening multiplexers in the signal path blocking the FDL.

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

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

When the remote communication is programmed to operate over the facility data
link (FDL), test conditions such as a remote network LLB or a local LLB on the
near end interrupt access to the far-end unit.

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

Channel Allocation

This display-only field indicates the network channel assignments with Channel 1
on the left and Channel 24 on the right. Channels assigned to a port are identified
with a port number (1). Non-assigned idle channels are marked with a hyphen (-).
Remote communication channels are marked with an R.

Configuration Screens

4-17

Alarm

Configuration

The Alarm Configuration screen (Figure 4-8) 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 (any number from 0 to 900) and press Enter.
If this value is later surpassed, an alarm indication appears. Setting a field to 0
causes the element not to alarm on that statistic.

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.

Remote Alarm Seconds

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

AIS Seconds

One-second period when all ones are received.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:42:19

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

Element: [NEAR]

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)

Alarm Reset Timer (seconds): ( 30)

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-8

Alarm Configuration Screen

4-18 TERMINAL CONFIGURATION AND TESTING

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.

Port

Configuration

The Port Configuration screen (Figure 4-9) sets the operating parameters for the
high-speed port. The default is all channels enabled.

When channel assignment changes are made to the high- speed port or to the
remote communication link, the 3002 reestablishes the mapping of all channels.
This interruption to traffic normally results in a brief burst of data errors.

Channel Allocation

This display-only field indicates the network channel assignments with Channel 1
on the left and Channel 24 on the right. Channels assigned to a port are identified
with a port number (always 1). 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, each data
channel is followed by an idle channel not assignable for other ports and is marked
with an X.

Por t #

Selects the port to be configured. This value is always One.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:42:36

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

Element: [NEAR]

Channel Allocation: ------ ------ ------ ------

Port # [ONE ]
LL Detect : [DISABLE]
Rate Mult: [N x 64k] RL Detect : [DISABLE]
DS0 Ch. Assign: [Contiguous] V.54 Loop : [ENABLE ]
Invert Data: [No ]
Start Ch. #: ( 0) CTS Control: [Force True ]
Port Rate: [0 kHz ] DSR Control: [Force True ]
# of Channels: 0 DCD Control: [Force True ]

Tx Clock: [Internal ] Alarm on DTR Loss: [DISABLE]

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-9

Port Configuration Screen

Configuration Screens

4-19

Rate Multiplier

The unit can operate at any data rate that is a multiple of 56 or 64 kbps. When
N×64K is selected, the ones density requirements of the T1 network line must be
ensured. When N×56K is selected, the unit maintains ones density for the selected
DS0 channel.

DS0 Channel Assignment

Selects whether the DTE channel assignment is made as a Contiguous group or as
Alternate channels. Selecting Alternate assures ones density but reduces the
available bandwidth from 1536 kbps to 768 kbps.

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 multiplier and the mode selected in DS0 Channel Assignment. The choices
are 1 through 24.

Por t Ra te

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

# of Channels

This field displays the number of channels to be passed through to the DTE. The
number is determined by the Port Rate value divided by the Rate Multiplier.

Transmit Clock

This field is used to select the clock that the unit uses to sample the data
transmitted fro m the DTE. When se t to Internal, the da ta is automatically
edge-aligned and sampled directly with the transmit data clock also supplied to the
DTE as Transmit Clock. The External option uses the external clock supplied by
DTE. The Oversample option is used to operate the port as a low-speed
asynchronous port. In this mode, the port rate should be set to at least four times
the asynchronous data rate (depending on the degree of allowable distortion for the
particular DTE equipment used).

LL (Local Loop) Detect

Allows enabling or disabling pin J (V.35) or pin 18 (EIA-530) to loop-up the near
(local) unit.

RL (Remote Loop) Detect

Allows enabling or disabling the monitoring of pin BB (V.35) or pin 21 (EIA-530)
to loop-up the far unit.

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.

4-20 TERMINAL CONFIGURATION AND TESTING

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 / 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.

Alarm on DTR Loss

Selecting Enable allows the unit to go into alarm on loss of DTR. The default
setting is Disable

.

Dial Backup

Param et ers

The Dial Backup Parameters screen (Figure 4-10) allows configuring the DBU
port. The DBU functionality is enabled by selecting two of the eight available
alarm indicators or by selecting Any. These parameters can be any one of nine
errors (LOS, ES, SES, UAS, LOF, RAS, AIS, BPV, ANY). These parameters allow
establishing pre-defined thresholds (set in the Alarm Parameters screen) and
initiating dial backup when these thresholds are exceeded.

See Alarm Configuration on page 4-17 to set the threshold parameters.

Alarm Reset Timer

This field can be set from 0 to 900 seconds. If this field is set to 0, the unit
remains in dial backup mode even if the T1 circuit is re-established. If this field is
set from 1 to 900, the circuit is up for that period before it re-establishes.

See Alarm Configuration on page 4- 17 to set the thresholds for this field.

3002 DSU 42.136/9.00 3 0 0 2 Date: 05/17/71
No Far End Response Time: 17:16:00

---------------------------- DIAL BACKUP PARAMETERS ----------------------------

Status: DISABLED
Command: [DISABLE ] Activation Periods
Activators: [LOS] [LOS] -----------------­ Mode: [MASTER] Sun: [00] - [00]
Security: [DISABLED] Mon: [00] - [00]
Password: (********) Tue: [00] - [00]
DTR Dialing: [DISABLED] Wed: [00] - [00]
Dial String: (ATD ) Thu: [00] - [00]
Init String: (AT&F&C1&M1&D2%A2=0%A4=0 ) Fri: [00] - [00]
Reset String 1: ( ) Sat: [00] - [00]
Reset String 2: ( )
Reset String 3: ( )
Reset String 4: ( )
Reset String 5: ( )

(CONFIGURE ISDN TA)

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-10

Dial Backup Parameters Screen

Configuration Screens

4-21

Status

Lists the current DBU status as either Disabled, Enabled, Active, Connecting,
Disallowed, Dialing, Disconnecting, Testing, Test Passed, and Test Failed.

Command

This field determines the dial backup operating mode.

Disable.

Disables dial backup. The unit does not attempt to establish a dial backup

connection.

Enable.

thresholds specified in the

Enables dial backup. The unit answers incoming DBU requests. If the

Activator 1

or

Activator 2

fields are exceeded, the unit

establishes a dial backup connection.

Enable Daily.

Enables dial backup only during the time specified in fields Activator

1 and Activator 2.

Activate.

The unit attempts to establish a dial backup connection. This is a forced

condition and ignores the alarm states.

The unit attempts to establish a dial backup connection with the far end. This

Tes t .

is a non-intrusive continuity test that does not disrupt the data path and can be
activated from either the local or remote unit.

Activator 1

Allows setting the first threshold value for initiating a dial backup. Available
values are LOS

, ES, SES, UAS, LOF, RAS, AIS, BPV, and ANY.

Activator 2

Allows setting the second threshold value for initiating a dial backup. Available
values are LOS

, ES, SES, UAS, LOF, RAS, AIS, BPV, and ANY.

Mode

This field determines the priorities when both units try to establish a DBU
connection. One unit must be configured as a master unit and one unit must be
configured as a slave.

Security

Allows enabling or disabling the security function limiting access to the DBU
interface. The security setting must be the same on both ends.

Password

If the security feature is enabled, the password for the security option must be the
same on both devices.

DTR Dialing

Allows enabling or disabling DTR dialing. The terminal adapter must be configured
for DTR dialing, auto answer, and stored number.

4-22 TERMINAL CONFIGURATION AND TESTING

Dial String

This is the character string used to dial the other unit.

Init String

This is the character string used to configure the modem to dial the other unit.

Reset String

These strings (1 through 5) are used to reconfigure the ISDN TA when the unit has
trouble making a connection.

Configure ISDN TA

Routes the user interface of the switched service DBU unit. This feature allows for
the configuration of necessary parameters in the switched unit.

Activation Periods

Then period when the unit is allowed to enter an active DBU state.

When confi guring a ctivation p eriods in the Tim e of Day map, rememb er to calcul ate
any time zone differences.

Management

Ports

The Management Ports screen (Figure 4-11) sets the following parameters for the
Call On Alarm (COA) connection on both the SUPV and SLIP ports.

Element ID

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

Call on alarm messages are reported in the following format in the DIAL or
DIRECT modes only:

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:43:13

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

Element ID: ( )

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

COA Connection: (DISABLED)
Primary Dial String: (ATDT )
Secondary Dial String: (ATDT )
Initialization String: (ATEQ0V1 )
Disconnection String: (ATH )

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-11

Management Ports Screen

Configuration Screens

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

4-23

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

Joesunit 17:24:55 08/04/93
NET Alarms: LOS AIS ERRS
DTE Alarms: LOS Port1

The user-programmable Element ID string is transmitted first to allow the COA
function to send a message with a specific meaning to some host (such as a log-on
message).

The identifier ERRS represents an alarm caused by ES, SES, and BPV errors.

COA Connection (SUPV)

This field controls the remote alarm reporting. ASCII alarm reporting through the
supervisory port is independent of TRAP alarm reporting. The ASCII alarm report
type is set by the following choices:

DISABLED.

DIAL.

Alarm reporting is disabled.

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

DIRECT.

Sends reports to a printer or terminal connected directly to the

supervisory port.

Primary Dial String and Secondary Dial String

These fields are ASCII strings for the primary and secondary call on alarm phone
numbers used in the DIAL mode. The strings must not include the ATDT
command pr efix.

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

Initialization String

The modem initi alization stri ng is entered in th is field. Refer to the mo dem’s
documentation for further information. The default setting is ATEQ0V1.

Disconnect String

This field identifies the character string to be output when the modem session is
terminated. T he default settin g is ATH.

4-24 TERMINAL CONFIGURATION AND TESTING

Summary

The Summary screen (Figure 4-12) is a display - only screen that summarizes all the
configuration switch settings in the left column. Other pertinent information is
shown in the right column.

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:43:29

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

(S1:1-2 ) Supv Port Rate: 19200 Serial Num: 000107
(S1:2-10) NMS ADDRESS : 001 NMS RATE : 19200

------ Unit Options ------­ Port 1: V.35

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-12

Summary Screen

Utilities

4-25

Utilities

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

Set Time The current time may be entered in this field using the 24 - hour HH:MM : SS

format. For example, 3:45 a.m. is entered as 0345 and 3:45 PM is entered as 1545.

Set Date 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.

New

Password

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

Incorrect Password; Please Enter Again.

Do not exit the terminal 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 a password is programed and later forgotten, contact Verilink Technical support
for a one-time backdoor password.

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

3002 DSU 1.00/2.40 3 0 0 2 Date: 06/24/97
No Far End Response Time: 08:43:32

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

Element: [NEAR]

Set Time: (17:57:26)
Set Time: (11/28/21)

New Password: ( )

(MAINTENANCE RESET)

----------------------------------- Messages ----------------------------------­ Local Screen

Figure 4-13

Utilities Screen

4-26 TERMINAL CONFIGURATION AND TESTING

Maintenance

Reset

This field clears all user-selectable parameters, performance registers, passwords,
and alarms but saves the IP Address. All alarm threshold parameters are reset to
default values. The unit reloads start-up configuration settings from the default
parameters stored in ROM. Pressing Enter on this field brings up the following
warning:

DELETE ALL DATA AND RESTART UNIT?

(NO!) (YES)

A

F

LASH

PROM

Required
Equipment

PC Setup

D

OWNLOAD

P

ROCEDURE

This appendix is a step-by-step procedure for downloading the Flash PROM
software for the PRISM 3002.

The following equipment is required to perform the download procedure.

✦ PC with at least one available RS-232 serial (COM) port.
✦ A diskette containing the DOWNLOAD.EXE program.
✦ A diskette containing one or more hexadecimal files to be downloaded to the unit

(these files have a .

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

This operation zeros all performance registers. Refer to the unit’s configuration guide
noting current settings before performing this procedure.

Power up the PC and create a directory structure to contain the program files.

1

Creating a new directory, such as C:\HEX or C:\DOWNLOAD, is recommended.

extension).

HEX

Copy all the files on the supplied diskette to the destination directory noting the

2

complete file names of all hex files, such as 0026-214.HEX.
Select the DOWNLOAD.EXE file. The TxPORT FLASH Loader main screen is

3

displayed (Figure A-1).
Select 3111/3112 or 3002 at Device Type using the arrow keys to highlight the

4

field and the spacebar to toggle through the list of available products.
Select the Download Method as either Switched or Messaged. Switched requires

5

pressing buttons as shown in Table A-1 to place the unit in a download mode.
Messaged places the unit in a download mode through a message transmitted from
the download program.

Select the PC serial communications port to be used for the download procedure.

6

The choices are Com1

, Com2, Com3, and Com4.

A-2 FLASH PROM DOWNLOAD PROCEDURE

7 Select the baud rate for

Table A-1

Flash PROM Download Rate

configuring the
communication program. The
valid choices for the 3002 are
19200, 38400

, and 57600 (see

Botton 19.2 kbps 38.4 kbps 57.6 kbps

TEST Pres s Press
LOOP Press Pr ess

Upgrading Software on page
3-3).

8 The TEST and LOOP buttons only control the SUPV port rate for downloading

software for the unit’s Flash PROM. Setting the SUPV port rate for terminal
operation is done by hardware (see SUPV Port Bit Rate on page 3 - 2).

9 Enter the hex file to be downloaded. When the Device Type was selected, the

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

10 Connect the PC serial COM port to the SUPV port of the 3002 with a DB-25 to

6-pin modular cable assembly (P/N 9- 1001 -028 - 2). If the COM port has nine
pins, use a 9- pin to 6-pin modular cable assembly (P/N 9 -1001- 025 -2).

11 In Switched mode (step 5 above), press the 3002 front panel TEST and LOOP

buttons to matc h the rate s elected in step 7. Power restart th e unit with the buttons
pressed.

12 From the FLASH Loader screen, select the Help option and follow the instructions

for configuring the baud rate. This operation is different for each device type so
read the instructions carefully. If the baud rate cannot be successfully configured,
contact Verilink Technical Support.

13 The Utilities option is used for saving and restoring the configuration parameters

for the 8100A Site Controller.

TxPORT FLASH Loader Time: HH:MM:SS

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

Hex Filename: [0026-214.hex]

Help

Utilities

Download

Exit

MESSAGES

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

Figure A-1

TxPORT FLASH Loader Screen

PC Setup

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

14

The actual downloading procedure overwrites the existing program in Flash. Ensure
that the appropriate file name is selected before pressing ENTER on the Download

option. Do not remove power or interrupt the download process in any manner. This
can cause th e unit to los e its ser ial and har dware revision numb ers that ca n only be
reinstalled at the factor y.

The process of erasing the Flash may last a couple of minutes. The PC message
line indica tes the curren t number of re cords sent:

Records Sent: --

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

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

Once the Flash is erased, the program begins counting the current number of data

15

blocks being uploaded. This process takes a few minutes to complete.

Records Sent: ---­Percent Sent: --%

A-3

After the softwar e is downloaded to th e unit, the PC bee ps to indicate co mpletion.

16

Most units automatically reset.

Do not remove power until the LEDs stop flashing.

When all files have been downloaded, a factory default maintenance reset

17

operation is recommended (see Maintenance Reset on page 4 - 26). This can be
performed through the unit’s terminal interface start- up procedure (see Interface
Start-up on page 4- 1).

A-4 FLASH PROM DOWNLOAD PROCEDURE