EXFO FTB-8510B Guia Del Usuario página 993

SDH Tabs
HOP RX (SDH)
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.
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
Received Message: Displays the J1 value in 16-bytes or 64-bytes
format. The <crc7> represents the CRC-7 for a 16-bytes format. The
last two bytes of a 64-bytes format, <C > and <L >, represent
R F
respectively a carriage return and a line feed.
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.
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.
Expected Format: Allows the selection of the format expected.
Choices are 16 or 64 bytes. The default setting is 16 bytes.
343
SONET/SDH Application