M/T-DIG (Maintenance/Test Digital Port)
Issue 1 May 2002
8-1161
555-233-143
M/T-DIG (Maintenance/Test Digital
Port)
The Maintenance/Test digital port is a port on the TN771D circuit pack. Ports 2
and 3 are digital ports. The Maintenance/Test digital port provides the ability to
perform digital (i.e., ISDN-PRI) trunk testing via the TDM bus. For an ISDN-PRI
test call, connections are set up in the system as shown in
When the Maintenance/Test digital port is participating in an ISDN-PRI test call,
the port sends a stream of pseudo-random data along the connected B channel.
The far end loops back this data, and the Maintenance/Test digital port compares
the data to that which was sent. Errors are recorded on a bit and block basis.
Refer to ISDN-TRK (DS1 ISDN Trunk) Maintenance documentation for more
information about ISDN-PRI test calls.
The Maintenance/Test digital port maintenance ensures that the digital trunk
testing function is operating correctly. The Maintenance/Test digital port is
alarmed if maintenance determines that the digital port is operating incorrectly.
NOTE:
An alarm on the Maintenance/Test digital port reduces service, but does not
block it since the ISDN-TRK has other means to determine the health of the
ISDN-PRI trunk facility. However, to accurately measure the error
performance and to ensure accuracy of the health of the ISDN-PRI trunk,
the Maintenance/Test circuit pack should be replaced when a new circuit
pack is available.
MO’s Name
(in Alarm
Log)
Alarm
Level
Initial SAT Command to
Run
1
1.
UU is the universal cabinet number (1–64 for ATM PNC, 1–44 for CSS PNC). C is the carrier
designation (A, B, C, D, or E). SS is the number of the slot where the circuit pack resides (01–21).
pp is the 2-digit port number (01, 02,...).
Full Name of MO
M/T-DIG
MINOR
test port UUCSSpp l
Maintenance/Test digital
port
M/T-DIG
WARNING
release port UUCSSpp
Maintenance/Test digital
port
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...