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SONET_Usr.bk Page 132 Wednesday, December 13, 2000 11:11 AM
Tandem Connection Monitoring
Tandem Connection Terminating Equipment (TCTE) Testing
TCTE Sink/Source Testing
Description
Connect the OmniBER to the system under test as shown below, stress the system
by adding alarms and errors, and check for the correct response from the network
element.
HOWTO
1 Add the following alarms/errors to the signal input to the TCTE Sink input and
*Sending BIP errors without IEC errors, or IEC errors without BIP errors, gives rise
to a non-zero result when the TCTE calculates B3-IEC. These errors are counted as
TC errors (that is errors occurring on the TCM link) which in turn are reported on
TC-REI.
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check on the OmniBER RESULTS page for the correct response.
Alarm/Errors Transmitted
No signal, loss of frame, loss of pointer. TC-RDI and ODI alarms.
TC-APId mismatch.
TC-IAIS
BIP errors at 1E-5
BIP or IEC errors at 1E-5
Response on OmniBER Rx
TC-RDI and ODI alarms.
ODI alarm.
OEI errors at 1E-5
TC-REI errors at 1E-5*
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