3-85
Performance Tests
Multirate Optical Interfaces
Optical Receiver Sensitivity
13 Recall the HP 37718A/19A DEFAULT SETTINGS as shown on page 3-
4.
14 Setthe Optical Attenuator to ATTEN15dB,WAVELENGTH 1310nm
; CAL=0 ; ENB ON. Connect the Optical Attenuator between the
PowerMeter and theHP 37718A/19AOptical Outport (ensure that all
connections are tight and that the cable has no twists).
15 Press or and select SIGNAL [STM-0 OPT]
or [OC-1].
16 Adjust the Optical Attenuator to obtain a reading of -34 dBm on the
Power Meter.
17 Recall the HP 37718A/19A DEFAULT SETTINGS as shown on page 3-
4.
18 Disconnect the Optical Attenuator Output from the HP 8153A and
connect to the HP 37718A/19A Optical IN Port.
19 Press then and select TRANSMITTER
AND RECEIVER [COUPLED].
20 Press or and select SIGNAL [STM-0 OPT]
or [OC-1].
21 Press then to start a
measurement.
22 After 5 minutes check that NO TROUBLE is displayed on the
display.
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.
PMP Electrical Input
26 Recall the HP 37718A/19A DEFAULT SETTINGS as shown on page 3-
4.
27 Disconnect the optical cable from the HP 37718A/19A Optical IN port
and connect to the HP 11982A Lightwave Converter input.
TRANSMIT
SDH SONET
OTHER
SETTINGS CONTROL
TRANSMIT
SDH SONET
RESULTS
TROUBLE SCAN
RUN/STOP
RESULTS