3COM T1-PRI User Manual

Dual T1/PRI

Network Application Card Product Reference

Part No. 1.024.1367- 01

Version Number 3.1

Dual T1/PRI

Network Application Card Product Reference Version 3.1

http://www.3com.com/

Part No. 1.024.1367-01

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 1999, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

UNITED STATES GOVERNMENT LEGENDS:

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

United States Government Legend:

developed solely at private expense. Software is delivered as Commercial Computer Software as defined in DFARS 252.227-7014 (June 1995) or as a commercial item as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation. Other brand and product names may be registered trademarks or trademarks of their respective holders.

YEAR 2000 INFORMATION:

For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 web page:

http://www.3Com.com/products/yr2000.html

All technical data and computer software is commercial in nature and

ONTENTS

BOUT THIS REFERENCE

Finding Specific Information in This Reference ........................................i

Conventions..........................................................................................ii

Contacting 3Com..................................................................................ii

VERVIEW

Supported Features ...........................................................................1-1

Accessing the User Interface.............................................................. 1-1

T1/PRI C

UAL

Configuring Span Lines 1 and 2......................................................... 2-1

Menu Option 1 ............................................................................ 2-2

Configuring the span line’s framing mode............................... 2-2

Menu Option 2 ............................................................................ 2-2

Configuring the span line’s line coding....................................2-2

Menu Option 3 ............................................................................ 2-2

Responding to a span line remote (framer) loopback............... 2-2

Menu Option 4 ............................................................................ 2-3

Configuring the span line’s jitter attenuation........................... 2-3

Menu Option 5 ............................................................................ 2-3

Configuring the span line’s transmit line build out................... 2-3

Menu Option 6 ............................................................................ 2-4

Configuring for the Telco’s switch type.................................... 2-4

Menu Option 7 ............................................................................ 2-4

Configuring the span line’s idle bit pattern.............................. 2-4

Menu Option 8 ............................................................................ 2-5

Mapping the span line’s DS0s to chassis modems.................... 2-5

Menu Option 9 ............................................................................ 2-6

Configuring the span line’s signaling channel..........................2-6

ONFIGURATION

Menu Option 10...........................................................................2-6

Configuring the span line’s interface ID....................................2-6

Menu Option 11...........................................................................2-6

Configuring span level call-type blocking.................................2-6

Menu Option 12...........................................................................2-6

Configuring span level cause codes .........................................2-6

Menu Option 13...........................................................................2-7

Configuring the DS0 level call-type blocking............................2-7

Menu Option 14...........................................................................2-8

Configuring the DS0 level service state....................................2-8

Menu Option 15...........................................................................2-8

Configuring the Short Haul NIC line length..............................2-8

Menu Option 16...........................................................................2-9

Allowing for ALERTING message in response to SETUP request 2-9

Configuring Inbound Call Routing....................................................2-10

Menu Option 1...........................................................................2-10

Selecting a Gateway to process digital calls............................2-10

Menu Option 2...........................................................................2-10

Allowing modem analog calls................................................2-10

Menu Option 3...........................................................................2-11

Configuring inbound call routing...........................................2-11

Menu Options 4 and 5................................................................2-11

Checking the inbound call routing configuration status .........2-11

Menu Option 6...........................................................................2-12

Mapping inbound phone numbers to reserved pools .............2-12

Menu Option 7...........................................................................2-13

Mapping chassis modem channels to reserved pools..............2-13

Menu Option 8...........................................................................2-13

Mapping digital reserved pools to chassis Gateways ..............2-13

Menu Option 9...........................................................................2-14

Allowing ISDN-GWC termination...........................................2-14

Configuring the Card.......................................................................2-14

Menu Option 1...........................................................................2-14

Saving configuration changes to NVRAM...............................2-14

Menu Option 2...........................................................................2-15

Restoring configuration from NVRAM....................................2-15

Menu Option 3...........................................................................2-15

Restoring the default configuration .......................................2-15

Menu Option 4 .......................................................................... 2-15

Assigning timing source priority ............................................ 2-15

Menu Option 5 .......................................................................... 2-15

Configuring chassis slot devices ............................................ 2-15

Menu Option 6 .......................................................................... 2-16

Configuring the modem routing method .............................. 2-16

Menu Option 7 .......................................................................... 2-16

Configuring the UI console password.................................... 2-16

Menu Option 8 .......................................................................... 2-16

Enabling automatic DS0 state change ................................... 2-16

Menu Option 9 .......................................................................... 2-17

Companding Code Configuration......................................... 2-17

Configuring Software Fault Event Logging....................................... 2-17

T1/PRI M

UAL

Dual T1/PRI Commands..................................................................... 3-1

Menu Option 1 ............................................................................ 3-2

Resetting the highest priority timing source.............................3-2

Menu Option 2 ............................................................................ 3-2

Resetting the PRI NAC.............................................................3-2

Menu Option 3 ............................................................................ 3-2

Enter/Exit span-to-span pass-thru loopback mode ................... 3-2

Menu Options 4 and 6.................................................................3-3

Forcing receiver reframe on the span lines............................... 3-3

Menu Options 5 and 7.................................................................3-3

Disconnecting calls on specific span line B-channels ................ 3-3

Menu Option 8 ............................................................................ 3-3

Forcing the NAC to master the TDM bus.................................3-3

Menu Options 9 and 10...............................................................3-3

Entering and exiting locally initiated loopbacks on the

span lines ....... ...... ....... ...... ....... ...................................... ....... .. 3-3

Menu Option 11 .......................................................................... 3-4

Disabling red ALARM LEDs...................................................... 3-4

Menu Options 12 and 13 .............................................................3-4

Connect/disconnect B-channel on span lines 1 and 2 .............. 3-4

Menu Options 14 and 15 .............................................................3-4

Changing individual DS0 service states.................................... 3-4

AINTENANCE

iii

Menu Options 16 and 17..............................................................3-4

Changing span line service state..............................................3-4

Logging Out of the UI Console...........................................................3-5

T1/PRI S

UAL

Dual T1/PRI Status Displays.................................................................4-1

Menu Option 1.............................................................................4-2

Checking power-up self test status ..........................................4-2

Menu Option 2.............................................................................4-3

Checking the T1/PRI’s overall status .........................................4-3

Menu Option 3.............................................................................4-3

Checking chassis slot device configurations .............................4-3

Menu Option 4.............................................................................4-4

Checking DS0/modem channel status......................................4-4

Menu Option 5.............................................................................4-4

Checking the chassis’ ISDN gateway status..............................4-4

Menu Options 6 and 8..................................................................4-5

Checking span line 1 and 2’s DS0 status..................................4-5

Menu Options 7 and 9..................................................................4-6

Checking span line 1 and 2’s alarm/event status ......................4-6

TATUS DISPLAYS

ROUBLE CLEARING

Using the LEDs.................................................................................. A-1

About T1/PRI Alarm Levels ........................................................... A-2

Correcting Alarm/Error Conditions ............................................... A-3

Using SNMP Traps............................................................................. A-4

ECHNICAL SPECIFICATIONS

Certification.......................................................................................B-1

Regulatory Compliance Statements...............................................B-1

United States...........................................................................B-1

FCC Part 15 Compliance Statement.........................................B-1

Current Draw.....................................................................................B-1

Environment...................................................................................... B-2

Shipping and Storage................................................................... B-2

Operating .................................................................................... B-2

Physical Dimensions........................................................................... B-2

BOUT

About This Reference provides an overview of this reference, tells where to look for specific information and how to contact 3Com, and lists document conventions.

This reference describes how to configure the Dual T1/PRI via its user interface (UI) console.

This reference is intended for a networ k engineer or a network technician. It is assumed that the user of this documentation will possess a working knowledge of LAN and WAN technologies.

If the information in the release notes shipped with your product differs from the information in this reference, follow the instructions in the release notes.

HIS

EFERENCE

Finding Specific Information in This Reference

This table shows the location of specific information in this reference.

If you are looking for Turn to

A List of Supported Features Chapter 1 Configuration Information Chapter 2 Maintenance Information Chapter 3 Status Displays Chapter 4

BOUT THIS REFERENCE

Conventions

Contacting 3Com

This table lists conventions use d throughout this reference.

Icon Notice Type Description

Information note Information that contains important features or

instructions.

Caution Information to alert you to potential damage to a

program, system, or device.

Warning Information to alert you to potential personal injury

or fatality. May also alert you to potential electrical hazard.

ESD Information to alert you to take proper grounding

precautions before handling a product.

Call the appropriate number listed below for technical support.

■

If you are calling from the United States or Canada Dial 1.800.231.8770

■

If you are calling from Europe, Middle East, or Africa Dial +353.1.823.7700 (+ represents your international carrier code

and 353 represents the Ireland country code, where 3Com International Customer Services is located)

■

If you are calling from all other locations Dial (your international carrier code) 847.797.6600

Refer to the Total Control Hub Documentation CD-ROM for more information regarding product warranty.

For information about Customer Service, including support, training, code releases and updates, contracts, and documentation , visit our website at

http://totalservice.usr.com

VERVIEW

This chapter contains an overview of supported features and instructions for accessing the Dual T1/PRI Network Application Card (NAC) through the user interfac e ( UI) co ns o le .

Supported Features

Accessing the User Interface

These features are supported in this release:

■

RFC-1406 (Definitions of Managed Objects for the DS1 and E1 Interface Types) Error Counters—UAS, CCS, and SEFS

■

Increased Number of Modem Pools—from 4 to 12

To access the Dual T1/PRI NAC’s UI console, connect the following cables to the corresponding Network Interface Card (NIC) RS-232 port.

This port’s baud rate is defined by DIP switch settings on the Dual T1/PRI NAC. Refer to the NAC’s Getting Started Guide for more information.

1-2

HAPTER

1: O

VERVIEW

Callout # Description

1 RJ-45 connector to NIC’s RS-232 port 2 DB-25 male connector to modem for remote operations 3 DB-25 female-to-female null modem adapter to PC or terminal

UAL

This chapter provides configuration information for span lines 1 and 2, inbound call routing, software fault event logging, and the card.

T1/PRI C

ONFIGURATION

Configuring Span Lines 1 and 2

Configure span lines 1 and 2 by selecting options 5 and 6 from the user interface (UI) console’s main menu.

Boot Code Linked Date : Mon Dec 04 17:41:48 1995 Operation Code Linked Date: Tue Feb 23 16:41:51 1999

Main Menu

1 Command 2 Status 3 Card Configuration 4 Inbound Call Routing Configuration

5 Span Line 1 Conf iguration 6 Span Line 2 Conf iguration

7 SW Fault Manager Event Logging 8 Logout

Enter menu selection and press Return. Menu Selection (1-8):

2-2

HAPTER

2: D

UAL

T1/PRI C

ONFIGURATION

The UI console menu options for configuring both spans are identical. Selecting options 5 or 6 from the main menu produces this scree n for that span:

Span Line 1 Configuration Current Setting 1 Framing Mode ESF 2 Line Coding B8ZS 3 Remote Loopback Ignore 4 Jitter Attenuation Transmitter 5 Transmit Line Build Out 0.0 fN 6 Switch Type (Boot time) Config=5ESS(AT&T)Act.=5ESS (AT&T) 7 Idle Byte Sent to TELCO FE Hex 8 DSO to Modem Slot/Chan Mapping 9 Signaling Channel Config (Boot time) Config=D-channel Act.=D-channel 10 Interface ID 0 11 Span Level Call Type Blocking No Call Blocked 12 Span Level Cause Codes 13 DS0 Level Ca ll Type Blocking 14 DS0 Level S ervice State 15 Short Haul NIC Line Length Not Applicable 16 Use ALERTING Response NO (NOTE: Changing configur ation parameters may affect calls in progress.)

Enter menu selection and press Retur n or press Esc to exit.

Menu Selection (1-16):

Menu Option 1 Configuring the span line’s framing mode

The framing mode selects th e T 1 format.

Menu Option 2 Configuring the span line’s line coding

Line coding dictates how the data stream is encoded on the span line.

Menu Option 3 Responding to a span line remote (framer) loopback

Performing a framer lo opback is one method of performing enhanced trouble clearing. The NAC is put in a “waiting” state for the Telco’s loopback (loop-up/loop-down) signal if con figured to respond. Various network nodes can be put into loopback in order to isolate “trouble spots” in the network.

Configuring Span Lines 1 and 2

This diagram represents this process.

Encoded HDB3 Signal Bit Stream

Framer Circuitry Line Interface Unit Transformer

Configure the NAC framer to r e spond or ignore the loop-up/loop-down pattern from the Telco.

Menu Option 4 Configuring the span line’s jitter attenuation

Jitter attenuation on the span lin e en ha n ces the ne two rk in te rfa ce card (NIC) tolerance to jitter. The NIC’s hardware provides a 193-bit frame buffer to compensate for low frequency jitter on the network .

2-3

This option allows you to attenuate jitter on the receiving (from switch to you) and the transmitting (from you to switch) sides. It defaults to the attenuate jitter on the transmi ttin g side .

If you are using the Dual Channelized T1 (386) NAC with a Short Haul (DSX-1) NIC, jitter attenuation is only allowed on the receiving side.

Menu Option 5 Configuring the span line’s transmit line build out

The span line’s transmit line b uild out is a config urable output at tenuation that can be set to satisfy T1 circuit requirements.

2-4

HAPTER

2: D

UAL

T1/PRI C

ONFIGURATION

There are four attenuation values to choose from:

■

0.0 dB (default)

■

7.5 dB

■

15.0 dB

■

22.5 dB

Menu Option 6 Configuring for the Telco’s switch type

In order to receive or place calls to the Telco on the span line, configure the NAC to work with the type of switch the Telco is using.

The following switch types are supported:

■

4ESS (AT&T)

■

5ESS (AT&T)

■

DMS 100 (Northern Telecom)

■

INS-1500 (NTT)

■

NI2

Menu option 6 di spla ys a

configured

and an

actual

value represents any configuration changes made, and the actual val ue represents the switch type the card is currently configured for.

Configuration chan ges will not take effect until card is rebooted.

Once you reboot , the confi gur e d an d actu al v alues remain the same until additional changes are made.

Menu Option 7 Configuring the span line’s idle bit pattern

The span line’s idle bit pattern is an 8-bi t pattern placed on any channel not carrying a call.

This pattern is usually dictated by the Telco and is configured at the NIC by entering a 2-digit hexadecimal number at the prompt. The default is FE Hex.

value. The confi gured

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