Nortel Networks 207344-B manual Checking LEDs on the Switch Modules

Using the Centillion EtherSpeedII Switch Modules

Checking LEDs on the Switch Modules

If an EtherSpeedII 10/100BASE-T switch module is installed correctly, upon power-up, all of the LEDs on the front panel light in a sequential pattern. As you connect devices to the switch module’s ports, watch the LEDs on the front panel (Figure 3-6). An established link displays the following LED color sequence:

•The LINK LED lights green for each port showing link status.

•The 10/100 LEDs lights green when you have a 100 Mb/s Ethernet connection and is off (no light) when you have a 10 Mb/s connection.

•The 10/100 LED lights amber if a line error is detected. Line errors may be one or more CRC errors, data alignment errors, or frames that are too long.

LEDs

20 10/100BASE-T ports

(RJ-45)

LINK 10/100

9458FA

Figure 3-6. LED Display for the 10/100BASE-T switch module

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