For the LANplex® 2500 Intelligent Switching Hub
This module provides a single OC-3 155Mbps interface (multimode fiber) in
a high-speed slot on the LANplex® 2500 system. You can mix and match
two high-speed modules in any configuration, including ATM and FDDI, ATM
and 100Base-T, FDDI and 100Base-T, and FDDI and FDDI. For information on
configuring the ATM module, see the
LANplex® 2500 Administration Console
. This figure shows the ATM module’s front panel.
The ATM module requires revision 8.1.1 or higher of LANplex system software.
A system software revision supporting these modules is available from the
3Com BBS, 3Com’s Internet FTP site (ftp.3Com.com), 3ComForum on
CompuServe®, or 3Com’s Web site:
If you combine one or more Ethernet 10BASE-FL modules with ATM modules,
you must use the new 10BASE-FL module, part number 3C201400A. Software
release 8.1.1 or higher does not allow the system to boot if you use any of the
"older" 10BASE-FL modules (3C201400) with the ATM module.
The new 3C201400A module has a 10BASE-FL label on the top left-hand
corner of the front panel. (The previous version has no label.) You can also
check via software through the Admin Console for the new module revision
(4.0 or above). For more details, contact your local 3Com sales representative.
The ATM module contains three Status LEDs, as shown in this table:
Either an error has occurred or the module has
failed a diagnostic procedure.
The associated port is active.
Either an error condition has occurred with the
associated port or the port has been disabled from
the Administration Console.
Electrostatic discharge (ESD) can damage components on the mo