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Table 44 sdi port numbering – Nortel Networks 1000M User Manual

Page 303

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Description

303

Remote TTY

Survivable IP remote TTY

The three Serial Data Interface (SDI) ports

on the Small System Controller (SSC) card of an IP Expansion Cabinet or
Chassis are available for use as additional system remote TTYs.

If the IP Expansion Cabinet or Chassis is configured for Survivability, the
SDI ports of the IP expansion SSC can be used during survival mode. In this
mode, they function as a TTY connected to a stand-alone Small System.
However, the TTY has no access to either LD 43 or LD 143. When in
survival mode, the SDI ports of the IP expansion cannot be used to access
the Main Cabinet or Chassis. Refer to

Table 44 "SDI port numbering" (page

303)

for SDI port numbering.

Table 44
SDI port numbering

Cabinet or chassis

Normal mode

Survival mode

Main

0, 1, 2

0, 1, 2

IP Expansion 1

3, 4, 5

0, 1, 2

IP Expansion 2

6, 7, 8

0, 1, 2

IP Expansion 3

9, 10, 11

0, 1, 2

IP Expansion 4

12, 13, 14

0, 1, 2

Special text, which is displayed on the TTY of the IP Expansion Cabinet or
Chassis, indicates when the IP Expansion Cabinet or Chassis is operating in
survival mode. This text informs the technician of the difference between the
remote TTY’s access to the Main Cabinet or Chassis in normal mode and
the IP Expansion Cabinet or Chassis in survival mode. The text displayed
prior to login is as follows:

OVL111 0000 IDLE

TY 00 SCH MTC BUG 21:44

SURVIVAL MODE

The text displayed on the TTY of the IP Expansion Cabinet or Chassis after
login is as follows:

TTY 00 LOGGED IN 21:44 3/10/1999 SURVIVAL MODE

OVL000 SURVIVAL MODE

Database synchronization

During survival mode, survivable IP Expansion Cabinets or Chassis use
a copy of the database that was configured at the main and previously
downloaded to the survivable IP Expansion Cabinet or Chassis. Use
the Invoke Datadump Program (EDD) command at the Main Cabinet or
Chassis, or upon startup in normal mode, to download the database.

Nortel Communication Server 1000

Communication Server 1000M and Meridian 1 Small System Installation and Commissioning

NN43011-310

01.04

Standard

Release 5.0

13 May 2008

Copyright © 2008, Nortel Networks

.