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Test Results
300
FTB-700G/800 Series
Alarms/Errors
DS1
Alarms
AIS
(Alarm Indication Signal)
RX
: An unframed all-ones signal is received.
OOF
(Out-OF-Frame)
RX
: Four consecutive frame bit errors are detected.
RAI
(Yellow) (Remote Alarm Indication)
RX
:
SF framing: Bit 2 in each timeslot contains “0”.
ESF framing: Eight “ones” followed by eight “zeros” pattern is
received continuously in the data link (FDL).
Errors
Framing Bit
RX
: An incorrect value appeared in a bit position reserved for framing.
CRC-6
(Cyclical Redundancy Check) is only available with ESF
framing.
RX
: One or more bit errors have been detected in a block of data
through cyclical redundancy check.
Summary of Contents for FTB-1
Page 1: ...User Guide FTB 700G 800 Series NetBlazer for FTB 1 ETHERNET AND MULTISERVICE TESTER...
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Page 59: ...Test Setup Test Applications NetBlazer 47 SONET SDH BERT For SDH BERT...
Page 64: ...Test Setup Test Applications 52 FTB 700G 800 Series SONET SDH DSn PDH BERT For SDH...
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Page 674: ...0 5 1 5 48 5 0 176 W d y K y K D...