Fast Ethernet Switching System User’s Guide
12-Port 10/100-TX Module
This section covers the LEDs on the
Link | Duplex Mode |
Figure 14: 12-Port 10/100-TX Module LEDs
Link
The Link LED indicates there is a link at the port. If a cable is plugged into the port and the Link LED is off, check the cable and connection. The default value is that all ports
The color of the Link LED indicates the port’s speed. Orange indicates the port is operating at 10 Mbps. Green indicates the port is operating at 100 Mbps.
Duplex
The Duplex LED indicates the duplex mode the port is in. Each port can be set for a particular speed and duplex mode. Off indicates the port is in half duplex mode. Green indicates the port is in full duplex mode. Full duplex means the port is transmitting and receiving data simultaneously. Half duplex means that data is only being transmitted or received in one direction at a time.
Table 7:
LED | Color | Dark |
Link | Orange indicates port speed is 10 Mbps | No link or link is down |
| Green indicates port speed is 100 Mbps |
|
| LED flashes when there is activity. |
|
Duplex | Port is working at full duplex | Port is working at half |
|
| duplex |
LEDs | 29 |