3com 7754 User Manual

To install a module:

1 Wear an antistatic wrist strap.

2 Remove the blanking plate from the chassis slot and save it for future use.

3 Hold the ejector levers of the module with both hands and push them outward.

4 Align the module with the guides in the chassis and slide it gently into the slot.

5 Push the module until the captive thumb screw on its handle bar touches the hole 

in the chassis.

6 Push the ejector levers inward and push the handle bar pin into the positioning 

hole in the chassis.

7 Fasten the module’s captive mounting screws into the holes in the chassis with a 

screwdriver. 

To install a submodule in the Fabric 32 you need the following tools:

■

Phillips-head screwdriver #2

■

Small pliers

Do the following:

1 Wear an antistatic wrist strap.

2 Unfasten the screws on the Fabric 32 printed circuit board at locations M11 and 

M18.

3 Unfasten and remove the submodule blanking plate from the Fabric 32.

4 Fasten the screw with guide pin on the Fabric 32 printed circuit board at location 

M2.1

5 Fasten the four hexagonal stand-off bolts at M3, M4, M11, and M18 on the Fabric 

32 printed circuit board. Do not overtighten these bolts.

6 Position the submodule on the four hexagonal stand-off bolts, insuring that the 

guide pin on the Fabric 32 matches the guide hole of the submodule.

7 Apply pressure near the edge connectors of the submodule to insure that the 

submodule connector is firmly seated.

8 Insert and fasten screws into the bolts that you installed in Step 5.