EXFO FTB-8510B Guia Del Usuario página 1152

Common Tabs
TCM RX
Alarm Analysis
TC-RDI (Tandem Connection - Remote Defect Indication):
For SONET: The TC-RDI is declared when bit 8 of the N1/Z6 byte frame
73 is set to "1".
For SDH: The TC-RDI is declared when bit 8 of the N1/N2 byte
multiframe 73 is set to "1".
ODI (Outgoing Defect Indication):
For SONET: The ODI is declared when bit 7 of the N1/Z6 byte frame 74
is set to "1".
For SDH: The ODI is declared when bit 7 of the N1/N2 byte multiframe
74 is set to "1".
TC-IAIS (Tandem Connection - Incoming Alarm Indication Signal):
For HOP: The TC-IAIS is declared when bits 1 through 4 of the N1 byte
are set to "1110".
For LOP: The TC-IAIS is declared when bit 4 of the Z6/N2 byte is set to
"1".
TC-LTC (Tandem Connection - Loss of Tandem Connection): The
TC-LTC is declared when receiving a wrong FAS multiframe.
TC-TIM (Tandem Connection - Trace Identifier Mismatch): The TC-TIM
is declared when the received message differs from the defined
expected message. The TC-TIM is also declared when receiving invalid
ASCII characters or when errors are detected with CRC-7.
TC-UNEQ (Tandem Connection - Unequipped):
For HOP: TC-UNEQ is declared when receiving an all "0"s pattern in the
higher order path signal label byte (C2), the TCM byte (N1) and the
path trace byte (J1), and a valid BIP-8 bytes (B3).
For LOP: TC-UNEQ is declared when receiving an all "0"s pattern in the
lower order path signal label (bit 5, 6, 7 of byte V5), the TCM byte
(Z6/N2) and the path trace byte (J2), and a valid BIP-2 (bits 1, 2 of V5
byte).
Note: The VT SPE / VC payload and the remaining path overhead bytes are
unspecified.
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FTB-8100 Series Transport Blazer