Test Functions
636
88000 Series
FDL - Bit-Oriented Message
Receive Messages
Link Activity
indicates the activity of the following parameters during
the last second of measurement.
Idle
indicates that only idle codes have been detected in the last
second.
Priority
indicates that at least one valid priority message has been
detected in the last second.
C/R
(Command/Response) indicates that a least one valid
command and response has been detected in the last second.
Unassigned
indicates that at least one unassigned message has
been detected in the last second. Therefore, since an unassigned
message is part of a Command/Response codewords, the
Command/Response LED will also be red.
PRM
indicates that at least one PRM has been detected in the last
second.
Priority
: The Bit-Oriented Messages are priority messages send over
the Data-Link. These messages are mostly used for networking
operation and maintenance. A Bit-Oriented Message consists of
8 consecutive 1s followed by a byte starting and ending by zeros.
Current
indicates the priority message detected in the last second. If
no priority message has been detected, “--” is displayed.
Previous
indicates the last priority message detected excluding the
current message. If no priority message has been detected since the
beginning of the test, “--” is displayed.
Note:
See
on page 634 for the list of possible priority codeword messages.
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