Avaya 03-300430 User Manual

The LEDs on the faceplate of the TN2242 circuit pack indicate its status as described in 

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The TN2242 MO directly interacts with these MOs:

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The DS1 facility plays a vital role in the synchronization subsystem. The IPSI or Tone-Clock 
circuit pack uses either the primary or secondary timing reference, whether internal (local – IPSI 
or Tone-Clock circuit pack) or external. TN2242 circuit packs can be administered as “primary” 
or “secondary” synchronization references.
The TN2242 circuit pack sends DS1 link status information to the synchronization reference 
switching algorithm. This algorithm determines whether timing references should be switched 
due to failure or restore conditions.

The TN2242 circuit pack MO is responsible for monitoring the health of the DS1 facility. If a DS1 
facility goes down, then that facility’s DS1 circuit pack instructs every MO associated with the 
DS1facility to place its trunks (or ISDN-PRI signaling link) in an out-of-service state.

The busyout board command tears down every call and signaling link associated with a 

TN2242 circuit pack.

Red

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MAJOR alarm

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MINOR alarm

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Firmware initialization during circuit pack insertion

Amber

A port on the circuit pack is in use.

Green

Maintenance testing is in progress on the circuit pack or its ports.