100BASE-FX FAST ETHERNET
R
MODULE INSTALLATION GUIDE
For the LANplex 2500
Module Description This module contains one (1) Fast Ethernet 100BASE-FX port that uses an
FDDI (SC) connector, providing a 100Mbps Fast Ethernet connection over
fiber. This module is fully compliant with all IEEE 802.3u specifications.
For a description of how to configure this module into your network, refer
to the LANplex documentation set.
The 100BASE-FX Fast Ethernet module requires revision 7.0 or later of
LANplex system software and revision 3.02 or later of system diagnostics. A
system software revision supporting this module is available from the 3Com
BBS, the Internet FTP site (3Com.ftp.com), or 3ComForum on CompuServe.
CAUTION: You must install revision 7.0 or later of LANplex system software
before you insert the 100BASE-FX module. Inserting the module when the
correct software is not running causes continuous system resets.
100BASE FX
Port Status
Active
Error
Board
Error
Status LEDs The option module contains one Board Error LED, one port status Active
LED, and one port status Error LED. Depending on the condition, the port
status LED is either Active (green) or Error (yellow). See the table below for
a description of the status LEDs.
.
LEDs
Name
Color
Description
Module Board Error Yellow Indicates that either an error has occurred or the
Status
option module has failed a diagnostic procedure
Indicates that the associated port is active
Port
Status
Active
Error
Green
Yellow Indicates that an error condition has occurred with
the associated port or that the port was disabled
from the Administration Console
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WARNINGI:f the system is powered on when you are installing the module,
do not insert any metal objects into the open slot (for example, a screwdriver
or a finger with jewelry). This could cause burns or other bodily harm.
3 Place the module between the guides of the selected slot and slide the
module into the chassis. See the figure below.
ERROR
Fan
PCMCIA
R
LANplex 2500
Power
Run
Processor Power
Config
Inserted
Temp
100 Base FX
Port Status
Active
Error
Board
Error
100BASE-FX
option module
Captive screw
4 To seat the module, firmly push the module forward to engage the module
and backplane connectors. You will feel a slight resistance as the connectors
engage.
CAUTION: If the resistance is too great, the module and backplane
connectors may not be aligned. Forcing the module forward could damage
the board or backplane connectors. If necessary, remove and reinsert the
module, ensuring that the connectors are properly aligned. You should not
have to seat the module by tightening the captive screws.
5 Tighten the captive screws to secure the module in the chassis.
Once the module is installed, see Chapter 4: Cabling the System in your
Getting Started guide for information on cabling your module to the
network.
Read if adding or You can add or replace a module while the system is powered on.
replacing a module
To replace a module: 1) disconnect the cable from the module’s port(s) 2)
loosen the two captive screws securing the module to the chassis and 3)
pull the module out of the chassis.
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ERROR
Fan
PCMCIA
R
LANplex 2500
Power
Run
Processor Power
Config
Inserted
Temp
Green
Yellow
=
=
Active
Error
Inserted
Green
Yellow
=
=
Active
Error
Port Status
Port Status
Active
Error
Board
Error
Active
Error
1
2
Board Error
1
2
3
4
5
6
7
8
Green
Yellow
=
=
Active
Error
Port Status
100 Base FX
Port Status
Active
Active
Error
Board
Error
Board
Error
Error
100BASE-FX
option module
Captive screw
Male SC
connector
The LANplex system will automatically reset when a module has been
installed with the power on.
If you physically change the configuration of the system after defining an IP
interface, the port designated for that interface may no longer be valid. You
may have to redefine the interface. For information on defining an IP
interface, see the Administration Console User Guide for your LANplex
system.
Option Module Module diagnostics run at power up or when replacing a module with the
Diagnostics power on. During diagnostics, the module’s port status Error LED is lit
yellow. When diagnostics are successfully completed, the port status Active
LED turns green. If the port status Error LED remains yellow, the port is not
operational. If the module’s Board Error LED is lit yellow, the module has
failed a diagnostic test. To troubleshoot module failures, see Chapter 7:
Troubleshooting the System in your Getting Started guide.
3Com Corporation
© 3Com Corporation, 1996. All rights reserved. No part of this documentation may be reproduced in any form
or by any means or used to make any derivative work (such as translation, transformation, or adaptation)
without permission from 3Com Corporation.
5400 Bayfront Plaza
Santa Clara, California
95052-8154
3Com Corporation reserves the right to revise this documentation and to make changes in content from time
to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty of any kind, either implied or expressed,
including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
3Com may make improvements or changes in the product(s) and/or the program(s) described in this
documentation at any time.
3Com and LANplex are registered trademarks of 3Com Corporation. 3Com registered trademarks are registered
in the United States, and may or may not be registered in other countries. Other brand and product names
may be registered trademarks or trademarks of their respective holders.
Part No. 801-00304-000
Published March1996
Revision 01
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