5-44
Servicing
Adjustment Procedures
17 Connect the equipment as shown in the following figure.
Figure5-13. Equipment setup for laser bias
18 Turn the Agilent83430A’s LINE switch o n, and clear the Agilent 83480A’s
display.
19 On the Agilent 83430A, press the PRESET/VARIABLE button so that the BIAS
ADJUST light is off.
20 On the Agilent83480A digital communications analyzer, perform the following
steps:
aTurn the optical channel on. Turn off all other channels.
bEnable the internal OC-48 filter.
cPress the blue shift key and then press MEAS EYE.
dPress Extinction ratio.