Operation Manual

FiberTEK III Document 164802 Iss 3
User Manual Page 15
Fig. 6 Loopback Field Calibration (3-Jumper)
 Use the soft keys / to select whether to test a single cable
in one direction or a duplex cable in both directions. (This setting does not affect
the Field calibration.)
5. Use soft key to start the Field Calibration
6. Follow the instructions on screen
7. After the Field Calibration is complete, an indication of the quality of the jumper(s) used is shown:
Fig. 7 Field Calibration result
NOTE
The cables connected to the Tx Ports must not be removed following calibration.
If field calibration was not successful, implement the following measures:
 Check correct connection of launch cords.
 Check launch fiber connections for contamination. If necessary, clean connections and
check with a fiber test microscope (IDEAL order number 45-332).
 Dirty launch fibers also contaminate the measuring adapter connections. Clean the
connections on the FiberTEK™ III measuring adapters with an optical cleaning sponge.
 Check launch cords with a fiber continuity tester (IDEAL order number: VFF5) for continuity.
 Replace suspected damaged launch cords.