EXFO FTB-8100 Series Transport Blazer for FTB-200 - Manual (Page 268)

SDH Tabs
256 FTB-8100 Series Transport Blazer
Regenerator Section RX (SDH)
Alarm Analysis
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OOF (Out Of Frame): A OOF alarm indicates that a minimum of four
consecutive errored framing patterns are received.
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LOF (Loss Of Frame): A LOF alarm indicates that an Out Of Frame
(OOF) defect on the incoming optical signal persists for 3 milliseconds.
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RS-TIM (Regenerator Section - Trace Identifier Mismatch): The RS-TIM
defect indicates that the received J0 Trace doesn’t match the expected
message value. RS-TIM alarm is only available when the Enable
RS-TIM check box is selected.
Note: Refer to Alarm/Error Measurements on page 44 for H/C LEDs, and Seconds
information.
J0 Trace
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Received Message: Displays the J0 value in 16 or 64 bytes format. The
represents the CRC-7 for a 16-bytes format. The last two bytes
of a 64-bytes format,
R
> and
F
>, represent respectively a
carriage return and a line feed.
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Enable RS-TIM (Regenerator Section - Trace Identifier Mismatch):
Enables the Trace Identifier Mismatch for the expected message
defined when the Enable RS-TIM check box is selected. The Enable
RS-TIM check box has to be selected to give access to the expected
trace format and message. When the Enable RS-TIM check box is
selected, the J0 1-byte is available from the Regenerator Section OH
TX/RX (SDH) on page 257.
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Expected Message: Allows entering the message that is expected.
J0 value should be ASCII suitable characters. The default message is
EXFO SONET/SDH for 16 bytes and EXFO SONET/SDH Analyzer
Section/RS trace test message for 64 bytes.
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Expected Format: Allows the selection of the format expected.
Choices are 16 or 64 bytes. The default setting is 16 bytes.