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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
check on the OmniBER RESULTS page for the correct response.
*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.
Alarm/Errors Transmitted
Response on OmniBER Rx
No signal, loss of frame, loss of pointer. TC-RDI and ODI alarms.
TC-APId mismatch.
TC-RDI and ODI alarms.
TC-IAIS
ODI alarm.
BIP errors at 1E-5
OEI errors at 1E-5
BIP or IEC errors at 1E-5
TC-REI errors at 1E-5*
SONET_Usr.bk Page 132 Wednesday, December 13, 2000 11:11 AM
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