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FiberLink 7250 Series User’s Manual
FiberLink 7250 Series
Optical Fiber
The 7250 Series operates with most multimode (MM) and single mode (SM) optical fibers.
However, be aware that the type of fiber you use will affect the system’s loss budget and
the maximum transmission distance that it can support.
Troubleshooting
Multimode fiber optic cable contains an optical fiber with a light carrying “core” that is only
.0025 inches (62.5 microns) in diameter. Single mode fiber optic cable has an even smaller
“core,” only .00032 to .0004 inches (8-10 microns). This is smaller than a human hair!
Therefore, any minute particles of dirt or dust can easily block the fiber from accepting
or radiating light. To prevent this from happening, always use the provided dust caps
whenever optical connectors are exposed to air. It is also a good idea to gently clean the
tip of an optical connector with a lint-free cloth moistened with alcohol whenever dust is
suspected.
The status of the VIDEO and AUDIO indicator LEDs should provide the first clue as to the
origin of an operational failure. If these are off, it usually means that the fiber is broken or
has too much attenuation. Next, be certain that the input and output signal connections
are correct.
Operating Pointers | Troubleshooting
