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16.0

Fast Ethernet SwitchModule Front

Panel Features

This section describes the front panel features that are

unique to the Fast Ethernet SwitchModules. See

Section 10.0 for a description of the PacketChannel LED,

Module Status LED, and the Reset button.

16.1 LEDs

The following table explains the Fast Ethernet port status

or activity LED blink sequences:

LED

State

Port Status or

Green On

Activity

Green

(One per Port)

1 Blink

Green

4 Blinks

Off

Yellow On

Yellow

Blinking

Full-Duplex

Green On

(Not found on

Green

the 6618M-TX)

Blinking

Off

16.2 Ports

The 100BASE-TX SwitchModule uses crossover ports with

RJ-45 connectors. The X that follows the port number on

the SwitchModule indicates a crossover port.

CoreBuilder 5000 100BASE-T modules use crossover

ports. This means that if you connect a 100BASE-T

SwitchModule port to another CoreBuilder 5000

100BASE-T module port, you must use a crossover

cable.

3Com, the 3Com logo, CoreBuilder, PACE, and Transcend are registered trademarks of 3Com Corporation.

ONline and TriChannel are trademarks of 3Com Corporation.

Windows is a registered trademark of Microsoft Corporation.

UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

All other company and product names may be trademarks of the companies with which they are associated.

Indicates

Port is enabled and link is OK.

Link failure.

Remote link failure.

Port or port functions are

disabled.

Heavy traffic activity on the port.

Normal traffic activity on the

port.

Port is in full duplex mode.

Autonegotiation is determining

the correct duplex setting.

Port is in half-duplex mode.

The 100BASE-FX SwitchModule uses SC connectors. See

the following figures.

RJ-45

Port Status/Activity and

connectors

Full-Duplex Status LEDs

6618M-TX-A

6604M-TX-A

100BASE-TX

SwitchModule

Model Number

3C96618M-TX

3C96604M-TX-A

connectors

6604M-FX-A

100BASE-FX

SwitchModule

Model Number

3C96604M-FX-A