Fluke DTX-1800, Technical Reference Handbook

Page: 368 / 398

DTX Series CableAnalyzer
Technical Reference Handbook
A-4
2. Clean and Inspect the Connectors
2-1 Test reference cords must have endfaces that are clean
and have no damage. Always use correct procedures to
clean endfaces. See page 8-9 or use the procedures
given with your cleaning supplies.
2-2 After you clean an endface, use a fiber microscope to
examine the endface. Figure A-2 shows examples of
what you can see with a fiber microscope.
Figure A-2. Examples of Fiber Endfaces
amd172.eps
A
A clean endface that has no damage. This is the only
condition that you can accept for a test reference cord.
B
Dirt that is not on the core does not change the loss
measurement, but the dirt can move when you connect
the fiber.
C
Dirt is on the core. Also, there are scratches that were
caused by incorrect procedures for cleaning.
D
The cladding has damage. This does not change the loss
measurement, but can cause damage to other endfaces.
A B
C D