Test Results
NetBlazer
303
Alarms/Errors
Errors
FAS
(Frame Alignment Signal) is only available with
PCM30 CRC-4
or
PCM31 CRC-4
framing.
RX
: Bits 2 to 8 of the frame containing the FAS differ from 0011011.
CRC-4
(Cyclical Redundancy Check)
RX
: One or more bit errors are detected in a block of data through
cyclical redundancy check.
E-Bit
(CRC-4 Error Signal) is only available with
PCM30 CRC-4
or
PCM31 CRC-4
framing.
RX
: Bit 1 of sub-multiframe (SMF) II in frame 13 and/or 15 is set to 0
indicating a sub-multiframe error.
E2
Alarms
Note:
Only AIS is available when the framing is set to Unframed.
AIS
(Alarm Indication Signal)
RX
: An unframed all-ones signal is received.
LOF
(Loss Of Frame)
RX
: Four consecutive incorrect frame alignment signals is received.
RAI
(Remote Alarm Indication)
RX
: Bit 11 of a framed E2 is set to “1”.
Errors
FAS
(Frame Alignment Signal)
RX
: Bits 1 to 10 of the first frame differ from 1111010000.
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...