Performance Tests Performance Test Instructions
252 Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement 
System, & Agilent 8166A Lightwave Multichannel System, Fourth Edition
6 Move to the power sensor channel, move to [P], press 
[Power Unit], and select <dBm> from the menu that appears.
7 Press the key beside the laser output on the module front panel to switch on the 
laser source. 
8 Note the power reading of the power sensor in the test record. The Module 
Interaction Test ends here if you use the Agilent 8163A.
NOTE If you use the Agilent 8164A, perform steps 9 to 12.
If you use the Agilent 8166A, perform steps 9 to 15.
9 Switch your mainframe off, by pressing the Power Key.
10 Move the laser source module from slot 1 to slot 3, and the power sensor 
module from slot 2 to slot 4.
11 Connect the output of the laser source in slot 3 to the input of the power sensor 
in slot 4.
12 Repeat step items 2 to 8.
13 Move the laser source to a slot with an odd number and the power sensor to the  
following slot with an even number. For the last test, leave the source in slot 15 
and move the power sensor to slot 17.
14 Connect the output of the laser source to the input of the power sensor.
15 Repeat step items 2 to 8.
Test of the Tunable Laser Module Channel (Slot 0)
If you need to test a back-loadable Tunable Laser module slot, perform the 
remaining list items. This test only applies to the Agilent 8164A Lightwave 
Measurement System.
16 Connect the power output of the Tunable Laser module to the input of the 
power sensor.
17 Switch on the Agilent 8164A and wait until is has booted.
18 Press Preset, the green hardkey, to set all parameters to their default values.
19 Move to [λ], the wavelength of your Tunable Laser module, type 1550.00.
20 Move to [λ], the wavelength of your power sensor, type 1550.00.
21 Set the [P], the output power, and [Att], the attenuation, to the value given in 
Table 9.
Table 9 Reference Wavelength and Power Settings
Tunable Laser Module Attenuation [ATT]  Power [P]
Agilent 81680A, Output 2, High Power 0 dB −10.00 dBm
Agilent 81682A Not applicable 0.00 dBm