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Fast Ethernet Switching System User’s Guide
LEDs
24
16-Port 10/100-TX Module
This section covers the LEDs on the 16-Port 10/100 TX Module, see Figure 11.
The meaning of the LEDs is displayed in Table 3: 16-Port 10/100-TX Module
LEDs.
Duplex Mode
Link/ Act/ Speed
Figure 11: 16-Port 10/100-TX Module
Link/ Act/ 100/10
The Link/ Act/ 100/ 10 LED shows the link status, activity and speed of the port.
The LED is green when there is a link at the port. It flashes when there is activity.
100Mbps is indicated by color. Green indicates port speed of 100Mbps. Amber
indicates port speed of 10 Mbps.
Duplex
The Duplex LED indicates the duplex mode the port is in. The LED is green when
the port is in full duplex. It is dark when the port is in half duplex.
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 3: 16-Port 10/100-TX Module LEDs
LED
Color
Dark
Link/
Act/ 100/
10
Green indicates port speed is 100 Mbps
Orange indicates port speed is 10 Mbps
LED flashes when there is activity.
No link or link is down
Duplex
Green indicates port is working at full
duplex
Port is working at half
duplex