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Performance Tests
Performance Test
6. Press PARAM to select the [lambda] parameter. Edit this
parameter and set it to the current wavelength of the source.
7. Enable the source.
8. Press P
ARAM to select the CAL REF parameter (the current
value for the known return loss is displayed with R: at the side
of the character field).
9. Attach the Agilent 81000BR Reference Reflector to the
patchcord. (Use the Agilent 81000UM, with a connector
interface to do this)
10. Set the reflection reference (R:) to 0.18dB, the default value of
the return loss of the reference reflector.
11. Press D
ISP→REF (the value read should now be 0.18dB, the
same as the value entered for R:).
NOTE If this is the first time that you have transferred this value to the
reference after switch on, it might not be displayed properly. In this
case, repeat the step to correct the display.
12. Press P
ARAM to select the REF AUX parameter.
13. Terminate the cable by wrapping the fiber five times around the
shaft of a screwdriver.
14. Press D
ISP→REF (the instrument sets the termination
parameter).
15. Disable the DUT.
NOTE If you have the monitor option (option 121), make sure that the cable at
the monitor output is terminated.
16. Connect the 81109AC patchcord to the 8156A input, and note
the Return Loss result in the Test Record.
17. Connect the 81109AC patchcord to the 8156A output, and note
the Return Loss result in the Test Record.