Chapter 9: Certify Fiber Cabling
Autotest in Loopback Mode
273
Autotest in Loopback Mode
Use Loopback mode to do tests on spools of cable and segments
of uninstalled cable.
In this mode, the tester measures loss and length at two
wavelengths. If you turn on the Bi-directional function and swap
the fibers halfway through the test, the tester makes
measurements in both directions.
Figure 110 shows the equipment for tests in Loopback Mode.
Figure 116. Equipment for Autotests in Loopback Mode
GPU129.EPS
Main tester with CertiFiber Pro
module installed
For multimode fiber: one EF-TRC test
reference cord
Two singlemode adapters
For multimode fiber: one test
reference cord. For singlemode fiber:
two test reference cords.
Fiber cleaning supplies
FI-1000 video probe with
USB connector
AC adapters with line cords
(optional)
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