OP
+
VTX
Installation and Operation Manual
9
Figure 2-4
describes the acceptable limits of defects in a fiber connection.
Figure 2-4
Fiber Optic Cross-Section
Inspection and Cleaning Procedure
Inspection
To inspect and clean the fibers, follow these steps:
1
Ensure the fiber is not “live.”
WARNING
Eye damage may occur if an optical instrument such as a microscope, magnifying
glass, or eye loupe is used to stare at an energized fiber end.
2
Inspect the fiber endface with a fiberscope.
3
If the fiber endface is clean, return to the installation instructions on
page 6
for back
modules or
page 7
for front modules.
If the connector is dirty, proceed to the dry cleaning instructions below.
Dry Cleaning
If you are using cartridge- or pocket-style dry cleaning tools, follow the manufacturer’s
directions. If you are using lint-free wipes, follow these steps:
1
Fold the lint-free wipe four to eight times into a square, taking care to avoid touching the
cleaning surface of the wipe.
Zone 2
(25 to 60 micron diameter)
Maximum of 3 scratches <3.0 micron width is acceptable;
Maximum of 1 light dig of <3.0 micron is acceptable
Zone 1
(0 to 25 micron diameter)
No scratches or digs are allowed
Zone 3
(60 to 120 micron diameter)
No scratches >3.0 microns are acceptable;
Maximum of 3 digs of <10 microns are acceptable
Maximum 10 micron diameter dig is acceptable
Scratches and dust
