Demand test descriptions and error codes - Avaya Support

● Source of input power - AC, DC, or both
● Input power - Indicates the type of power currently in use, AC or DC
● AuxSig signal status
SER-BUS (Serial Communication Bus)
Note:
Note: If the TN 2312BP IPSI cot get data from the power supplies, the data entries for
status environment will be dashed out.
Use recycle carrier to:
● Shut off all voltage output temporarily
● Shut off ringer voltage output temporarily
Use clear error to:
● Clear the non-volatile source ID cause of the last shutdown
● Clear the serial bus error and time-out counters
Serial Bus Fault Detection and Isolation
Serial Bus faults can be caused by:
● A defective circuit pack inserted into one of the G650 slots
● Bent pins on the G650 backplane
● Defective TDM/LAN bus cables
● Power supply microcontroller failure
● TN2312BP IPSI failure
It is possible that a circuit pack can cause a Serial Bus fault and still exhibit trouble-free
operation. For example, insertions of any circuit pack into a G650 slot may bend the backplane
pins and short two leads together. Or a circuit pack that doesn’t use the Serial Bus could still
have an on board short that shorts one of the Serial Bus leads. Since the Serial Bus is a shared
resource that each circuit pack and power supply has access to, identification of the cause of a
Serial Bus fault can be difficult.
Issue 5 May 2009 825