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Fiber Optic Devices
A Small Form-Factor Pluggable (SFP) transceiver (1000BASE-SX,
1000BASE-LX or 1000BASE-LH) may also be used for backbone and
long distance connections.
Multimode fiber optic ports require 50/125 or 62.5/125 micron
multimode fiber optic cabling with an LC connectors (for SFPs) at both
ends. Single-mode fiber ports require 9/125 micron single-mode fiber
optic cable with an LC connectors (for SFPs) at both ends.
Caution: Fiber optic SPF transceivers use lasers to transmit signals over
1. Check that the fiber terminators are clean. You can clean the cable
plugs by wiping them gently with a clean tissue or cotton ball
moistened with a little ethanol. Dirty fiber terminators on fiber cables
will impair the quality of the light transmitted through the cable and
lead to degraded performance on the port.
2. Connect one end of the cable to the LC port on the switch and the
other end to the LC port on the other device. Since LC connectors are
keyed, the cable can be attached in only one orientation.
3. As a connection is made, check the green Link LED on the switch
corresponding to the port to be sure that the connection is valid.
fiber optic cable. You should never look directly at a transmit
port when it is powered on.
F
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IBER
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4-5
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