15
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:
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.
LED State
Indicates
Port Status or
Activity
(One per Port)
Green On
Port is enabled and link is OK.
Green
1 Blink
Link failure.
Green
4 Blinks
Remote link failure.
Off
Port or port functions are
disabled.
Yellow On
Heavy traffic activity on the port.
Yellow
Blinking
Normal traffic activity on the
port.
Full-Duplex
(Not found on
the 6618M-TX)
Green On
Port is in full duplex mode.
Green
Blinking
Autonegotiation is determining
the correct duplex setting.
Off
Port is in half-duplex mode.
Copyright © 3Com Corporation, 2000. All rights reserved.
3Com, the 3Com logo, CoreBuilder, PACE, and Transcend are registered trademarks of 3Com Corporation.
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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.
The 100BASE-FX SwitchModule uses SC connectors. See
the following figures.
6604M-TX-A
4X
3X
2X
1X
STATUS
1
2
3
4
FULL DPLX
RJ-45
connectors
Port Status/Activity and
Full-Duplex Status LEDs
1
2
3
4
RX
TX
RX
TX
RX
TX
RX
TX
6604M-FX-A
STATUS
FULL DPLX
1
2
3
4
SC
connectors
100BASE-TX
SwitchModule
Model Number
3C96604M-TX-A
100BASE-FX
SwitchModule
Model Number
3C96604M-FX-A
100BASE-TX
SwitchModule
Model Number
3C96618M-TX
PACKETCHANNEL
MOD ST
AT
RESET
2.2
2.4
3.2
3.4
1.2
1.4
1.6
4.2
4.4
2.1
2.3
3.1
3.3
1.1
1.3
1.5
4.1
4.3
1.1X
1.2X
1.3X
1.4X
1.5X
1.6X
2.1X
2.2X
2.3X
2.4X
3.1X
3.2X
3.3X
3.4X
4.1X
4.2X
4.3X
4.4X
6618M-TX-A
