EXFO FTB-800 Series for FTB-1 - Manual (Page 292)

Test Results
282 FTB-700G/800 Series
Alarms/Errors

PLM-P (Payload Label Mismatch - Path) - SONET
HP-PLM (HP - Payload Label Mismatch) - SDH
RX: Five consecutive frames have mismatched STS/VC signal labels
(C2 byte). Only available when PLM-P/UNEQ-P / HP-PLM/HP-UNEQ is
enabled (refer to Labels on page 150).

PDI-P (Payload Defect Indication - Path) - SONET
RX: For VT-structured STS-1 SPE, there is a LOP-V, AIS-V, DS3 AIS, DS3
LOS, or DS3 OOF defect on any VT or DS3 payload that it embeds into
the STS SPE that it is originating. For non-VT-structured STS-1 or STS-Nc
SPE, the C2 byte contains the hexadecimal FC code.
TX: For VT-structured STS-1 SPE, generates a VT-structured STS-1 SPE
with payload defect. For non-VT-structured STS-1 or STS-Nc SPE,
inserts the hexadecimal FC code in the C2 byte.

RDI-P (Remote Defect Indication - Path) - SONET
HP-RDI (High Order Path - Remote Defect Indication) - SDH
RX: Bits 5, 6, and 7 of the G1 byte contain the “100” or “111” pattern in
five consecutive frames.
TX: Generates a “100” pattern for bits 5, 6 and 7 of the G1 byte.

ERDI-PCD (Enhanced RDI - Path Connectivity Defect) - SONET
ERDI-CD (Enhanced RDI - Path Connectivity Defect) - SDH
RX: Bits 5, 6 and 7 of the G1 byte contain the “110” pattern in five
consecutive frames.
TX: Generates a “110” pattern for bits 5, 6 and 7 of the G1 byte.

ERDI-PPD (Enhanced RDI - Path Payload Defect) - SONET
ERDI-PD (Enhanced RDI - Payload Defect) - SDH
RX: Bits 5, 6 and 7 of the G1 byte contain the “010” pattern in five
consecutive frames.
TX: Generates a “010” pattern for bits 5, 6 and 7 of the G1 byte.