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M-UM038-01 RP 460 Reference and Test
DMT
Example 5: Multimode Fiber, Paired, Loopback Jumper
Fiber Type
Multimode
Connectors Used
LC
Test Jumper Setup
Loopback
OPM Used
RP 460
OLS Used
DLS 350
Fiber-Under-Test
The fiber-under-test is paired multimode
with paired LC connectors on each end. The
fiber-under-test may be up to 250 kilometers long.
In this example, the fiber-under-test is 400 meters
long.
Test Jumper
The test jumper is paired for loopback testing. One
end has an SC connector and an LC connector,
and the other end has two LC connectors clipped
together. This method also uses a multimode
loopback adapter. It should be black and have a
duplex bulkhead on the end.
400m Paired Fiber
1m Paired Jumper
Multimode Loopback
Power Meter
The RP 460 power meter is set to
the 850nm wavelength. The 1300nm
wavelength may also be used. Always
match the wavelength on the RP 460
to the wavelength on the DLS 350. The
adapter on the RP 460 is the AC 029 LC
adapter.
Light Source
The DLS 350 LED source is set to the
850nm wavelength. The 1300nm
wavelength may also be used. The
adapter is the default AC 022B SC adapter.
