LanTEK® II Series Manual - Ideal Industries Inc.
LanTEK® II Series Manual - Ideal Industries Inc.
LanTEK® II Series Manual - Ideal Industries Inc.
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Chapter 8<br />
Fiber testing (LWL) FiberTEK FDX<br />
8.7. Calibration<br />
During calibration, FiberTEK FDX calculates a reference level for the loss measurement.<br />
Calibration accuracy depends on warm-up period of measuring adapter and quality of the test<br />
cords.<br />
Illustration 8.7. Calibration (general)<br />
NOTE:<br />
The launch and tail cords must correspond to the type of fiber to be tested (e.g. 50- m<br />
launch fibers for testing of 50- m cable).<br />
All connections on launch, tail and reference cords must be in compliance with the<br />
requirements of ISO/IEC 14763-3 concerning length as well as insertion loss.<br />
To ensure the specified measuring accuracy, a sufficient heating period must be considered<br />
for the measuring adapter.<br />
The temperature of LanTEK ® <strong>II</strong> Cable Tester and measuring adapter should correspond to<br />
the ambient temperature.<br />
To prevent condensation on optics, do not remove dust covers on measuring adapters<br />
before performing cable test.<br />
Close optical input/output again immediately with dust covers after removal of launch<br />
fibres.<br />
The calibration values are saved in the Display handset (DH). The loss of the launch fibers<br />
and couplers used during calibration are deducted from the loss results during the cable test.<br />
Before testing of fibers a calibration should be performed if:<br />
‣ the launch cords have been subject to change or strong movement;<br />
‣ the fiber type has been changed;<br />
‣ the measuring adapters have been changed;<br />
‣ a device has been powered on or off;<br />
‣ the test setup has been moved;<br />
‣ a connection from the port of FiberTEK FDX module has been removed/changed.<br />
8.8. Performing Calibration<br />
1. Connect Display handset (DH) and Remote handset (RH).<br />
NOTE:<br />
Delivery includes three (3) interchangeable connector adapters for ST, SC and FC<br />
connectors. Other possible plug faces (LC) must be handled with hybrid launch cords (Ex.<br />
SC-LC).<br />
77