16 10-Port 100BASE-FX and 20-Port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules Quick Start Guide
Installing the Module To install a FEN Switching Module:
1Before you start the installation process, read and follow the instructions
in “Safety Precautions,” “Handling Precautions,” and “Installation
Prerequisites” earlier in this guide.
2Select a chassis slot for your module, following t he restrictions and
recommendations in “Module Placement in the Chassis” earlier in this
guide.
3To expose a slot for the module, remove the blank faceplate.
Save this faceplate in case you need it in the future. Empty slots must be
covered to ensure proper airflow and cooling in the chassis.
3Com recommends that you remove the faceplate only for the slot where
you intend to install an individual module; leave the remaining faceplates
in the chassis.
4Open the module ejector handles.
5Begin to insert the module:
■In the 7-slot chassis, hold the module horizontally with the LEDs to the
left and begin to insert the module u sing the guides on the left and
the right of the slot. Figure 2 shows the module po sition in a 7-slot
chassis.
■In the 8-slot chassis and 16-slot chassis, hold the module vertically
with the LEDs at the top and begin to i nsert the module using the
guides on the top and the bottom of t he slot. Figure 3 shows the
module position in a 16-slot chassis. The module position is the same
in an 8-slot chassis.
CAUTION: Do not twist or bend the module when you insert it .
6Slide the module into the chassis by pushing f irmly on the two ends of
the front panel near the ejector handles.
WARNING: Hazardous energy exists inside the chassis. Do not place
hands or objects into the chassis or touch any components on an inserted
module.