Noyes AFL OPM5-2D User Manual page 35

Testing Single-mode Links
Step III - Measure Single-mode Link Insertion Loss
17. Connect the free ends of the transmit and receive jumpers to the single-mode link under test.
Clean jumper end that connects to patch panel prior to every test!
18. OPM will measure and display the insertion loss of the link under test.
19. Perform one of the following:
If using OPM4: Record link insertion loss at the current test wavelength.
If using OPM5: Press the Store key on the OPM5 to save the displayed measurement in the next
available memory location.
20. Repeat steps 17-19 for all links to be tested at the current wavelength.
Transmit jumper
30 mm loop
OLS
Patch panel
Measure Multimode Link Insertion Loss.
Patch panel
Link under test
Receive jumper
2 dB
OPM5
35