physical description 2-4
100-240 VAC 50-60 Hz
AC power Receptacle
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.
10M On A valid 10 Mbps link is established on the port.
Off
No Activity 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.
Rear Panel
As illustrated in Figure 2-5, the rear panel of the Model GS516T switch has fans for cool-
ing and a standard AC Power Receptacle for the supplied power cord.
Figure 2-5. Rear Panel of the Model GS516T Switch
