HP 37718A Installation And Verification Manual page 127

Performance Tests
Multirate Optical Interfaces
39 Repeat steps 28 to 36 but with [STM-4 OPT] or [OC-12] selected on the
HP 37718A/19A and displays.
TRANSMIT
RECEIVE
Procedure 1550 nm - Optical Power Output
40 Repeat steps 1 through 12 substituting 1550nm for 1310nm.
Optical Receiver Sensitivity
41 Repeat Steps 13 through 25 substituting 1550nm for 1310nm.
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