Test Results
MaxTester 251
Alarms/Errors Overview
AIS-P (Alarm Indication Signal - Path)
RX: The H1 and H2 bytes for a STS path contain an all-ones pattern in
three consecutive frames or more.
TX: Generates an all-ones pattern for H1 and H2 bytes.
RDI-P (Remote Defect Indication - Path)
RX: Bits 5, 6 and 7 of the G1 byte contain the “100" or “111" pattern in
ten consecutive frames.
TX: Generates a “100” pattern for bits 5, 6 and 7 of the G1 byte.
LCD-P (Loss of Code-Group Delineation - Path)
RX: The signal synchronization has been lost and the valid code-groups
are no longer being delineated from the received payload stream being
passed to the PCS.
TX: Generates a PCS link down.
LOP-P (Loss Of Pointer - Path)
RX: For non-concatenated payloads, a valid pointer is not found in N
consecutive frames (where 8 = N = 10), or N consecutive NDFs
("1001" pattern) are detected.
TX: Generates a non-valid pointer.
PLM-P (Payload Label Mismatch - Path)
RX: Five consecutive frames have mismatched STS signal labels.
UNEQ-P (Unequipped - Path)
RX: The C2 byte contains “00 H" in five consecutive frames.
TX: Generates samples of unequipped STS signal labels (C2 is set to
“00 H”).
To Next Page
Loading...
