Chapter 1 Overview
1-26
No.
Item
Specifications
3.1.3.17
OH Test
OH Change
OH
Timing
OH BERT
OH
Test pattern
Error addition
Error/Alarm detection
OH add/drop
OH
OTU/ODU/OPU 1 byte, FAS, APS/PCC, TCM1-6, SM,
PM,
GCC0-2, EXP (Except MFAS, Paritybytes, JC and NJC)
A-pattern: 1 to 256 frames, B-pattern: 1 to 256 frames
Alternative A = 1 to 8000times, B = 1 to 8000 times
GCC0-2, OH 1 byte
(Except MFAS, Paritybytes, JC and NJC)
Pattern: OFF, 2
11
−
1, 2
15
−
1 (Invert)
Bit (Single only)
Bit, Sync. Loss
GCC0-2
3.1.3.18
Through
Bitrate
Mode
Error addition
Error addition timing
Alarm addition
2666 Mbit/s
Transparent, OH (OTU, ODU, OPU, All, 1 byte) Over-
write
Transparent: Bit all
OTU Overwrite:
SM-BIP-8, SM-REI, PM-BIP-8,
TCM-BIP-8, Bit all
ODU Overwrite:
SM-BIP-8, PM-BIP-8, PM-REI,
TCM-BIP-8, TCM-REI, Bit all
OPU Overwrite:
SM-BIP-8, PM-BIP-8, TCM-BIP-8,
Bit all
OH all Overwrite: FAS, SM-BIP-8, PM-BIP-8,
TCM-BIP-8, Bit all
OH 1byte Overwrite:
SM-BIP-8, PM-BIP-8, TCM-BIP-8,
Bit all
Refer to 3.1.3.9.
Transparent: LOS
OTU Overwrite:
LOS, OTU-AIS, SM-TIM, SM-BIAE,
SM-BDI, SM-IAE, ODU-AIS,
ODU-OCI, ODU-LCK
ODU Overwrite:
LOS, OTU-AIS, ODU-AIS, ODU-OCI,
ODU-LCK, PM-TIM, PM-BDI,
TCM-TIM,TCM-BIAE, TCM-BDI,
TCM-IAE, TCM-LTC
OPU Overwrite:
LOS, OTU-AIS, ODU-AIS, ODU-OCI,
ODU-LCK
OH all Overwrite: LOS, OTU-LOF, OTU-LOM,
OTU-AIS, SIM-TIM, SM-BIAE,
SM-BDI, SM-IAE,ODU-AIS,
ODU-OCI, ODU-LCK, PM-TIM,
PM-BDI, TCM-TIM, TCM-BIAE,
TCM-BDI,TCM-IAE, TCM-LTC