2-5
1) Connect the detector port and light source port to two fibers in the link via
patch cords.
2) On the other end of the link, connect the same two fibers with a single
patch cord, thus creating a loop.
3) Once the patch cords are connected as shown in the diagram below,
press or to run the LENGTH TEST.
4) After the length test is complete, the fiber length will be displayed in
meters, and the index of refraction used for the test is shown.
5) Three options are available once the length measurement is complete:
TEST - perform another length measurement
DONE - return to the MAIN MENU
INDEX - change the index of refraction
INDEX OF REFRACTION
Index of refraction (IOR) is an expression of the speed of light in the optical fiber
and is used to calculate the length. Since IOR varies from cable to cable, the FiberMeter allows the user to
change the IOR to match the cable under test, ensuring the most accurate length measurement. The IOR is
typically between 1.400 and 1.600, and can be found on the cable manufacturer’s specification sheet.
F1F1
SIMPLE METER - Fiber Length Measurement - Installed Link
(FIBER
PATCH
DONE
END
CONNECT
_____________________
^ ^
FIBER A
FIBER B
PAIR REQUIRED)
FIBER A TO
AT THE FAR
OF THE
FIBER B
LINK.
Installed Link Test
Symbolic
Fiber
Link
(FIBER
PATCH
DONE
END
CONNECT
_____________________
^ ^
FIBERA
FIBERB
PAIR REQUIRED)
FIBERATO
ATTHE FAR
OFTHE
FIBERB
LINK.
F1F1
F2F2
F3F3
01000
TEST
1550nm
_____________________
FIBER LENGTH
+/-3
Index(n)=1
DONE INDEX
METERS
490
F1F1
F2F2
F3F3
Measure
Another
Installed
Link
Return to
MAIN
MENU
Change
Index of
Refraction
SIMPLE METER
UNIT 2
DONE
