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When the reference measurement is complete disconnect the center SC to SC fiber optic reference cord and add the two short duplex
patch cords converting SC to the connector style used by the link under test which will produce Test Method B results. Alternate Test
Method B will accommodate links with the same or different connectors at each end of the link under test.
Do not disconnect the reference cords from the output
connectors. Disconnecting the reference cords
from the output connectors will invalidate the reference
setting.
Caution
Duplex SC - SC style fiber
optic reference cord
Duplex SC - SC style fiber
optic reference cord
Fiber optic link or
spool under test
Non-SC
style
connector(s)
SC to Non-SC
style patch
cord(s)
Figure 10 Alternate Method B Certification Testing