Quick Reference Guide

physical description 2-2
100-240 VAC 50-60 Hz
AC power outlet
Fans
LEDs
Table 2-1 describes the activity of the LEDs.
Table 2-1. LED Descriptions
Label Color Activity Description
Power Green On Power is supplied to the switch.
Off Power is disconnected.
FDX/COL Green On The port is operating in full-duplex mode.
Off The port is operating in half-duplex mode.
Yellow Blinking Data collisions are occurring on the port. In a full-duplex
environment, there is no collision. In a half-duplex environment,
some collisions are normal.
Activity Green Blinking Packet transmission or reception is occurring on the port.
1000M Green On A valid 1000 Mbps link is established on the port.
Off A link is not established on the port.
100M Green On A valid 100 Mbps link is established on the port.
Off A link is not established on the port.
10M Green On A valid 10 Mbps link is established on the port.
Off A link is not established on the port.
Rear Panel
As illustrated in Figure 2-2, the rear panel of the Model GS508T switch has fans for cool-
ing and a standard AC power receptacle for the supplied power cord.
Figure 2-2. Rear Panel of the Model GS508T Switch