Twisted-Pair Devices; Figure 4-4. Making Fiber Port Connections - Enterasys Matrix-V V2H124-24FX Hardware Installation Manual

4
Making Network Connections
2. 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 optic cables will impair the quality of the
light transmitted through the cable and lead to degraded performance on the
port.
3. Connect one end of the cable to the SC or LC port on the switch and the other
end to the port on the other device. Since SC and LC connectors are keyed, the
cable can be attached in only one orientation.
SC fiber connector
4. As a connection is made, check the Link LED on the switch corresponding to
the port to be sure that the connection is valid.
The 100BASE-FX fiber optic ports operate only at 100 Mbps, full duplex. You can
run a single-mode fiber link up to 20 kilometers (12.43 miles). However, note that
power budget constraints must also be considered when calculating the maximum
cable length for your specific environment.
A 1000BASE-LX or 1000BASE-SX SFP fiber optic ports operate at 1000 Mbps full
duplex, with auto-negotiation of flow control. The maximum length for fiber optic
cable operating at Gigabit speed will depend on the fiber type as listed under
"1000 Mbps Gigabit Ethernet Collision Domain" on page 4-5.

Twisted-Pair Devices

The optional 1000BASE-T modules require an unshielded twisted-pair (UTP) cable
with RJ-45 connectors at both ends. Use Category 5, 5e or 6 cable for 1000BASE-T
connections, Category 5 or better for 100BASE-TX connections, and Category 3 or
better for 10BASE-T.
Caution: Do not plug a phone jack connector into an RJ-45 port. This will damage the
switch. Use only twisted-pair cables with RJ-45 connectors that conform to
FCC standards.
4-4

Figure 4-4. Making Fiber Port Connections

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