Acterna ANT-5 - SONET Information

Optional software for the ANT-5
Acterna ANT-5 Page 95
STS-P STS Path overhead B2 Line error monitoring
VT-V VT Path overhead B3 SP error monitoring
P-RDI PDH Remote Defect Ind. Fas/Crc FAS / CRC Error
P-AIS PDH AIS P-LOF PDH Loss of Frame
TSE Test Sequence Err. (Bit Err.) LSS Loss of Sequence Sync.
5.6.7 SONET information
SONET structure for ANT-5
STS-1
STS-1
SPE
x3, x12
44736 DS3
34368 E3
kbit/s
STS-3c
STS-3c
SPE
139264 E4
kbit/s
x1
Mapping
Multiplexing
Aligning
Pointer
processing
599040
kbit/s*
1
STS-N STS-12c
x1, x4
x1
STS-12c
SPE
VT
Group
x7
VT2 VT2 SPE
2.048 E1
kbit/s*
2
x3
VT 1.5 VT 1.5 SPE
1.544 DS1
kbit/s*
2
x4
*
1
*
2
x1
STS-48c
STS-48c
SPE
2396160
kbit/s
VT mapping
option only
Concatenated
option only
SONET Anomalies and Defects
The following table lists the SONET Anomalies and Defects pertinent to ANT-5, their
meanings and detection criteria.
Anomalies Detection Criteria
LOS Loss of signal All-zero pattern for
2.3
µs ≤ T ≤ 100 µs
LOF Loss of frame If SEF persists for ≥ 3ms
AIS-L Alarm Indication Signal – Line K2 (bits 6,7,8) = 111 for ≥ 5
frames