Lucent Technologies DDM-2000 OC-3 - Page 1190

TEST-TRMSN-T3 6of3Page TEST-TRMSN-T3
Multiplexing Direction
Loopback can be
Multiplexing Direction
Demultiplexing Direction
Fiber
Loopback
Demultiplexing Direction
Internal Loopback
FAR-END
External
Loopback
OLIU
fiber loopback, internal loopback,
Test Signal
OLIU
Internal
Monitor
NEAR-END
DSX/T1
DSX
DSX, or T1 carrier external loopback
DirectionMUXinSignalDS3ofTestTransmissionAutomated11-15.Figure
DSX
NEAR END
Loop
DSX
Multiplexing Direction
Test Signal
Internal
Demultiplexing Direction
Monitor
DirectionDEMUXinSignalDS3ofTestTransmissionAutomated11-16.Figure
11-520 2000February2Issue OC-3DDM-2000