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J1 trace – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 357

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SDH Tabs

SONET/SDH Application

343

HOP RX (SDH)

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ERDI-CD (Enhanced RDI - Connectivity Defect): The ERDI-CD alarm is
declared when bits 5, 6 and 7 of the G1 byte contain the “110” pattern
in five consecutive frames.

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ERDI-PD (Enhanced RDI - Payload Defect): The ERDI-PD alarm is
declared when bits 5, 6 and 7 of the G1 byte contain the “010” pattern
in five consecutive frames.

J1 Trace

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Received Message: Displays the J1 value in 16-bytes 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 HP-TIM: Enables the Trace Identifier Mismatch for the
expected message defined when the Enable HP-TIM check box is
selected. The Enable HP-TIM check box has to be selected to give
access to the expected trace format and message.When the Enable
HP-TIM
check box is cleared, the J1 1-byte is available from the HOP
OH RX (SDH)
on page 344.

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Expected Message: Allows entering the message that is expected. J1
value should be ASCII suitable characters. The default message is
EXFO SONET/SDH for 16 bytes and EXFO SONET/SDH Analyzer high
order path trace test message
for 64 bytes. However, with VCAT/LCAS
the default message will be EXFO followed by the VCG number (VCAT
and LCAS) and the SQ (VCAT only) number (for example
EXFO-VCG1-SQ0) for both 16 and 64 bytes formats.

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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.