3Com 10/100BASE-TX, 100BASE-FX quick start Installation Prerequisites

610-Port 100BASE-FX and 20-Port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules Quick Start Guide

Installation

Prerequisites

Module Placement in the Chassis

Before you install a module, make the following preparations:

■Verify that the chassis is properly installed in a rack, on a table, or on a shelf, according to the instructions in either of these guides:

■7-Slot Chassis Quick Installation Guide for the CoreBuilder 9000 Enterprise Switch

■Chassis Quick Installation Guide for the CoreBuilder 9000 Enterprise Switch 8-slot Chassis and 16-slot Chassis.

■Have a flat-blade torque screwdriver available to secure the module to the chassis after you install it.

■Read the CoreBuilder 9000 Release Notes for the Fast Ethernet and Gigabit Ethernet Layer 2 Switching Modules for important information about installing and upgrading modules in an existing chassis or a new chassis.

CAUTION: All modules in a CoreBuilder 9000 chassis must operate at compatible software levels. You must verify the software release on all new and existing modules in your chassis and upgrade as necessary. See the CoreBuilder 9000 Release Notes for the Fast Ethernet and Gigabit Ethernet Layer 2 Switching Modules for a module software compatibility requirements table, mandatory upgrade procedures, and other important information.

Note the following chassis slot restrictions and recommendations when you choose a chassis slot for the 10-port 100BASE-FX Fast Ethernet Switching Module or the 20-port 10/100BASE-TX Fast Ethernet Switching Module:

■In the 7-slot chassis:

■Do not install the module in slot 7. This slot is reserved for a Gigabit Ethernet (GEN) Switch Fabric Module.

■Install the module in slot 1, 2, 3, 4, 5, or 6.

■In the 8-slot chassis:

■Do not install the module in slot 7 or slot 8. These slots are reserved for GEN Switch Fabric Modules.

■Install the FEN Switching Module in slot 1, 2, 3, 4, 5, or 6.