Fast Ethernet Switching System User’s Guide

12-Port 10/100-TX Module

This section covers the LEDs on the 12-Port 10/100 TX Module, displayed in Figure 14. The meaning of the LEDs is displayed in Table 7: 12-Port 10/100-TX Module LEDs.

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 auto-negotiate the proper speed and duplex mode. If the port has been manually configured for a particular speed and duplex mode, verify that the speed and duplex mode of the port match the speed and duplex mode of the device you are connecting to. The LED will be steady at orange or green when there is no activity.

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: 12-Port 10/100-TX Module LEDs

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

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D-Link DES-5200 manual Port 10/100-TX Module, Link, Duplex