4
10/100BASE-TX F
AST
E
THERNET
M
ODULE
I
NSTALLATION
G
UIDE
Read before
removing a module
You can remove a module while the system is on.
To remove a module:
1
Read and follow the “Safety Precautions” and “ESD Safety Information”
earlier in this guide.
2
Record the cabling scheme so that you can correctly recable the new
module, and then disconnect the cables from the module’s ports.
3
Loosen the two captive screws that secure the module to the chassis.
4
Move the injector/ejector handles to the outward position.
5
Gently slide the module out of the chassis.
Installing the Module
To install the new module into the system, follow the steps in this section.
CAUTION:
When you handle a module, 3Com recommends that you
always use a wrist strap that is connected to a proper ground. This
precaution helps prevent electrostatic discharge from damaging a
module. Also, when you are not using the module, store it in an antistatic
bag
1
Read and follow the “Safety Precautions” and “ESD Safety Information”
earlier in this guide.
2
Put on the ESD wrist strap and ensure that you are properly grounded.
3
Remove the module from its antistatic bag.
WARNING:
If the system is 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). Doing so can cause burns or other bodily harm,
as well as system damage.
4
With the injector/ejector handles in the outward position, place the
module between the guides of the selected slot and gently slide it into
the chassis, as shown in Figure 2.
5
To engage the module and backplane connectors, move the injector
handles to the inward position. 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 inward can damage
the board or backplane connectors. If necessary, remove and reinsert the
module, ensuring that the connectors are properly aligned. Do not
tighten the captive screws to seat the module.
