HP 37718A Installation And Verification Manual page 142

Performance Tests
Multirate Optical Interfaces
Optical Receiver Sensitivity
13 Recall the HP37718A/19A DEFAULT SETTINGS as shown on Page 3-
2.
14 Set the Optical Attenuator to ATTEN 15 dB, WAVELENGTH 1310 nm
; CAL=0 ; ENB ON. Connect the Optical Attenuator between the
Power Meter and the HP37718A/19A Optical Out port (ensure that all
connections are tight and that the cable has no twists).
15 Press
TRANSMIT
or [OC-1].
16 Adjust the Optical Attenuator to obtain a reading of -34 dBm on the
Power Meter.
17 Recall the HP37718A/19A DEFAULT SETTINGS as shown on Page 3-
2.
18 Disconnect the Optical Attenuator Output from the HP8153A and
connect to the HP37718A/19A Optical IN Port.
19 Press then
OTHER
AND RECEIVER [COUPLED].
20 Press
TRANSMIT
or [OC-1].
21 Press
RESULTS
measurement.
22 After 5 minutes check that NO TROUBLE is displayed on the
display.
RESULTS
23 Repeat steps 13 through 22, substituting SIGNAL [STM-1 OPT] or
[OC-3] in steps 15 & 20.
24 Repeat steps 13 through 22, substituting SIGNAL [STM-4 OPT] or
[OC-12] in steps 15 & 20.
25 Repeat steps 13 through 22, substituting SIGNAL [STM-16 OPT] or
[OC-48] in steps 15 & 20 and -28 dBm in step 16.
PNP Electrical Input
26 Recall the HP37718A/19A DEFAULT SETTINGS as shown on Page 3-
2.
27 Disconnect the optical cable from the HP37718A/19A Optical IN port
and connect to the HP 11982A Lightwave Converter input.
3-74
or and select SIGNAL [STM-0 OPT]
SDH SONET
SETTINGS CONTROL
or and select SIGNAL [STM-0 OPT]
SDH SONET
then
TROUBLE SCAN
and select TRANSMITTER
to start a
RUN/STOP