INSTALLATION GUIDE
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IM-Raptor-1.3.6-EN
7.5.2
Differences between SM and MM Fibers
The main difference between MM and SM fibers is that the former has much larger core diameter. Typically, MM has a core
diameter of 50 or 62.5 µm and a cladding diameter of 125 µm, while a typical SM fiber has a core diameter between 8 and
10 µm and a cladding diameter of 125 µm.
SM fibers are better suited for moving information across longer distances and are routinely used by telecommunications.
In comparison, MM fibers are ideal for local networks due to their low cost and greater bandwidth.
Laser radiation might be emitted from disconnected fibers or connectors. Do not stare into cables.
7.5.3 General Fiber Optic Cables Handling Instructions
♦
Wear finger cots or gloves. Your hands may look clean, but dirt and oils on them can damage the fiber and
contaminate connectors.
♦
Never use the fiber pigtail to pick up or support the weight of the device. Keep both the device and the optical connector
together in your hand(s).
♦
The fiber is made of a very pure expensive glass. Treat it with the same care that would be used when handling expensive
crystal glass.
♦
Do not allow kinks or knots to develop in the fiber. Do not pull on the fiber when kinks or knots are present. Pulling
will only cause knots, kinks, and curls to tighten and exceed the minimum bend radius.
♦
Always use the correct tools for stripping and cleaving the fiber. It will save time and reduce breakage caused
by scratches.
♦
Follow all ESD precautions.
