Avaya 03-300430 User Manual

Removing a DS1 facility is service disrupting in any system configuration, because the DS1 
facility administration is similar on both sides of the PNC on critical-reliability systems.

This procedure is destructive.

1. Use busyout ds1-facility to busyout the DS1 facility.
2. Use list fiber-link to check the fiber link number.
3. Use change fiber-link to administer the DS1 facility. Set the Facility Installed 

field to n for the facility that is being removed.

4. Disconnect the DS1 facility (or facilities in a critical-reliability system configuration).

Use fiber link administration to set the following DS1 Interface options. Use list fiber-link 

to check the number of the fiber link. Execute change fiber-link and set the following 

fields:

Facility 

Installed

y when the facility is installed.

For TN574 DS1 converter boards, facility A must be installed first. Install 

Facilities B, C and D in any order on any of the four facilities.
For TN1654 DS1 converter boards, facility A must be installed first, then B, 

then C or D. This is required because the primary facility can only reside on 

facilities A or B.

Passes 

Far-End Clock

y when the DS1 facility is used as a clock reference for the receive fiber 

signal.
Appears on the Fiber-Link screen for TN574 DS1 converter circuit packs.
On the TN1654 DS1 converter board, none of the facilities can be used as a 

clock reference for the receive fiber signal, and administration of this field is 

not applicable.
DS1 facilities cannot be used as system synchronization sources.

Digital Data 

Compatible

y when the DS1 facility is digital data compatible and suitable for carrying 

packet traffic.
Appears on the Fiber-link screen for TN574 DS1 converter circuit packs. The 

TN574 circuit pack allows any of the four facilities to be used as the primary 

facility that carries the packet traffic. 
The TN1654 DS1 converter board allows packet traffic only on facilities A 

and B, and administration of this field is not applicable.

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