Avaya 03-300430 User Manual

!

WARNING:

Replacing a Switch Node Interface, Switch Node Clock, Expansion Interface or 
DS1 Converter circuit pack on an unduplicated system disrupts service. The 
service effect can range from outage of a single PN to outage of the entire 
system.

!

WARNING:

A DS1 Converter complex must consist of two TN574 boards or two TN1654 
boards. A TN574 cannot be combined with a TN1654 in the same DS1 converter 
complex.

!

WARNING:

The two DS1 converter boards, TN1654 and TN574, use unique “Y” cables that 
are incompatible with each other.

!

WARNING:

A TN573B (or higher-suffixed) board must be used when connecting a SNI board 
to a TN1654 DS1 Converter board.

Enter list fiber-link

Determine the fiber-link number associated with the 

two TN574 circuit packs to be upgraded.

Enter busyout fiber-link 

Fiber# represents the fiber-link number associated 

with the TN574 DS1 converter complex that is being 

upgraded to a TN1654 DS1 converter complex.

Enter remove fiber-link fiber#

Remove the TN574 DS1 converter 

circuit packs from the system.

Replace the TN574 Y-cables with 

TN1654 Y-cables.

Replace the removed TN574 DS1 

converter circuit packs with TN1654 

DS1 converter circuit packs. Prior to 

installing the TN1654 boards, review 

the prior section, TN1654 Board 

Configuration Switch Settings.

If a TN1654 DS1 converter board is 

connected to an SNI board, upgrade 

the SNI to a TN573B or greater.

Wait for the circuit packs to reset

Red and green LEDs will light and then go out.

 1 of 2