Quick Start Manual

Installation Guide for the Model FS518 Fast Ethernet Switch

Physical Description 2-3

1000BASE-SX Fiber Ports

The Model FS518 switch has two1000BASE-SX ﬁber ports. These ports operate at 1000 Mbps

full-duplex mode exclusively and provide a standard duplex SC connector for 62.5/125

m or

50/125

m multimode ﬁber optic cable. Figure 2-3 shows a ﬁber optic cable connection to a

duplex SC connector. The Link LED to the right of the 1000BASE-SX ﬁber port indicates whether

or not proper signaling is established with the remote port. For further information about ﬁber

optic cables and connectors, refer to Appendix

B, “Connector Pin Assignments,” and Appendix C,

“Cabling Guidelines.”

Figure 2-3. 1000BASE-SX Fiber Connection

Normal/Uplink Push Button

The Normal/Uplink push button on the front panel of the switch, as illustrated in Figure 2-1,

allows you to select uplink (MDI) or normal (MDI-X) wiring for port 16 on the Model FS518

switch. This port is conﬁgured for normal wiring to connect to a PC when the push button is in

the out position. When the push button is pressed in, this port is conﬁgured for uplink wiring to

connect to another switch or to a hub, using a straight-through twisted pair cable.

Warning:

Fiber optic equipment can emit laser or infrared light that might injure your

eyes. Never look into an optical ﬁber or connector port. Always assume that ﬁber optic

cables are connected to a light source.

8806FB

Tx Rx