Demand test descriptions and error codes - Avaya Support

Restarting Non-Functioning Port Circuit Packs
TDM-BUS (TDM Bus)
A defective TDM-bus control chel or system-timing reference on one of the EPNs can cause
port circuit packs residing outside the PN’s control carrier to enter the reset state. When this
situation occurs, the circuit pack will stop functioning, and its red LED will light. The system does
not detect the presence of a circuit pack when it is in the reset state. Executing list config
board shows that the circuit pack is absent.
If a circuit pack enters the reset state, it remains out of service until it receives a restart
message from the control chel on the same TDM bus (A or B) that was active when it reset, or
until it is powered up again.
To force the system to send a restart message to every circuit pack on a network, try one of the
following methods, depending on the circumstances. Any normally functioning circuit pack (i.e.,
not in reset state) will ignore the restart message.
Procedure 1 (Nondestructive)
If the control chel is on the same TDM bus as it was when the circuit pack entered the reset
state, Enter test tdm P to execute the Idle Time Slot test (#294).
Procedure 2 (Nondestructive)
If you are on-site, reseat the circuit pack. This action causes the circuit pack in the reset state to
begin functioning on the control chel of the current bus.
Procedure 3 (Destructive)
Enter the reset port-network P level 2 command to reset the PN containing the circuit
pack in the reset state. During a PN reset, two restart messages (one on the control chel of
each TDM bus) are sent to each circuit pack in the PN. Resetting the PN disrupts every call
going to and originating from the PN.
Procedure 4 (Destructive)
Execute recycle carrier PC. This command removes and restores power to the
designated port carrier. Thus, any other circuit packs in this carrier will also be temporarily taken
out-of-service.
Issue 5 May 2009 961