DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1715TDM-BUS (TDM Bus)
9
Notes:
a. The TDM Bus has been busied out by the tec hnician. The error will retire
when the technician releases the TDM Bus.
b. This error indicates the TDM Bus is corrup ted. If the corruption was on the
Control Channel bus, TDM Bus maintenance will automatic ally switch the
control channel and/or tones to the o ther bus. The same strategy applies if
the corruption was on the bu s carrying the tones.
An aux data value of 0 indic ates the last reported TDM Bus corrupti on was
on the Control channel bus.
An aux data value of 1 indic ates the last reported TDM Bus corrupti on was
on the Non-Control channel bus.
If this error is logged on both TDM Buses (A and B) on the PPN within two
or three minutes, the red LED of several circuit p acks may or may not be lit
and there could b e Switch Control (SW-CTL) errors. Under these
circumstances d o the following:
■Display the Hardware Error Log via the display errors c om mand
and look for SW-CTL (Switch Control) errors.
■If there are any errors logged again st the Switch Control, try to
resolve them.
■Test the TDM Bus via the test tdm P command.
■If all the TDM Bus tests pass, the problem has been fixed.
c. This error indicates the TDM Bus was switched to the other bus due to
TDM Bus corruption. The aux data value is not meaning ful and no action is
required. Look for other TDM-BUS errors to determine the c ause of this
error.
d. This error indicates that some time slots are c orrupted in the spec ified
TDM Bus. The Minor alarm is raised when there are more than 50 bad time
slots in the bus. The aux data indica tes the number of bad time slots found
by the test.
e. This error indicates that some time slots are corrup ted in the specified
TDM Bus. The Warning alarm is raised when there are more than 10 bad
time slots but less than or up to 50 b ad ones in the bus. The aux data
value indicates the numb er of bad time slots found b y the test.
f. This error indicates the idle time slot test found less than 10 bad time slots
in the TDM Bus. The aux data value indicates the numb er of bad time slots
found by the test. There is no alarm associa ted with this error.
g. This error indicates that the daily TDM Bus switch was not successful. The
Switch Control (PPN) or Active Expansion Interface (EPN) cannot talk on
the bus that software was trying to switc h into. There is no alarm
associated with this error.