AFL MFT Quick Reference Manual - Page 14

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AFL MFT Quick Reference Manual
Testing Multimode or Single-mode Links
Step III - Measure Multimode Link Insertion Loss
16. Connect free ends of transmit and receive jumpers to the link under test.
Clean jumper end that connects to patch panel prior to every test!
17. MFP will measure and display the insertion loss of the link under test.
18. Record link insertion loss at the current test wavelength.
19. Repeat steps 17-19 for all links to be tested at the current wavelength.
Transmit jumper
OLS
Patch panel
Link under test
Mandrel wrap - MM (shown),
or 30 mm loop - SM
Patch panel
14
Receive jumper
2 dB
MFP