VeEX MPA User Manual page 822

MPA_e_manual_D07-00-129P_RevA00
O
Optical Carrier level 1. OC-1 is 51.840 million bits per second. Its electrical equivalent is
an STS-1.
OC-3
Optical Carrier level 3. A SONET channel equal to three DS3s, which is equal to 155.52
million bits per second.
OC-12
Optical Carrier level 12. A SONET channel of 622.08 megabits per second (Mbps).
OC-48
Optical Carrier level 48. A SONET channel of 2.488 gigabits per second (Gbps).
OC-192
Optical Carrier level 192. A SONET channel of 9.953 gigabits per second (Gbps).
OC-768
Optical Carrier level 768. A SONET channel of 39.813 gigabits per second (Gbps).
ODTU-jk (where jk may be any combination from 01 to 34)
Optical channel Data Tributary Unit - j into k
ODU
Optical channel Data Unit
OPU
Optical channel Payload Unit
OH (Overhead)
See Overhead (OH).
OTN
Optical Transport Network. Considered to be a successor to SONET. OTN elements
include optical channels, optical multiplex sections, and optical transmission sections.
OTN also allows for deployment of Wavelength Division Multiplexing (WDM).
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