TM 11-6625-3041-12/TO 33A1-8-908-1
1-16. INPUT/OUTPUT (cont)
Connections
The SG-1139 can be connected to the unit under test in one of
two basic configurations, end-to-end or loopback.
End-to-End: The data output (and timing output if NRZ data
signals are used) from the transmitter is connected to the
input of the path under test. The output from the path is
connected to the input of the receiver.
The data output (and timing output if NRZ data
Loopback:
signals are used) from the transmitter is connected to the
input of one-half of one channel of the path under test. The
output from that half is connected to the input of the other
half (looped back). The output of the second half is connec-
ted to the input of the receiver.