EXFO IQS-8100 Series Transport Blazer for IQS-600 - Manual (Page 316)

DSn Tabs
302 IQS-8100 Series Transport Blazer
DS3 FEAC RX
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Unassigned: An unassigned message has been detected in the last
second. An Unassigned message is only detected when receiving at
least 10 consecutive occurrences of a specific unassigned codeword.
An Alarm/Status codeword is also reported since Unassigned is part
of the Alarm/Status group.
Alarm/Status Unassigned Messages
Displays the current and previously received Codeword messages.
Current: Indicates the last valid message, if any, received in the last second
of measurment.
Previous: Indicates the message, if any, that was received just before the
current measurement.
Loopback Commands
Current: Displays the valid message received in the last second of
measurement. A valid message is detected only when receiving 10
consecutive occurrences of a specific Loopback Command immediately
followed by 10 occurrences of a specific Channel Codeword. See DS3
FEAC TX on page 297 for more information.
Previous: Displays the last valid message received excluding the actual
Current message.