AT&T 3.0 manual Installing Expansion Carriers

Installing Expansion Carriers

Installing Expansion Carriers

If you are adding an expansion carrier to an existing system, see “Upgrading the Control Unit” in Chapter 9 before continuing.

If you are to install one or more expansion carriers, follow the steps below to mount each one. Refer to Figure 2–9and Figure 2–5throughout the procedure.

1Locate the breakaway plastic tab on the right side of the previously mounted carrier, Using a flat-blade screwdriver, gently pry the tab open to expose the card extender.

2Align the connector of the expansion carrier with the card extender on the previously mounted carrier and slide the connector onto the extender.

3Mark the screw-hole locations on the backboard, using the expansion carrier or the template that comes with the preassembled plastic backboard as a guide.

Make sure the carrier is level before marking the holes.

4Disconnect the expansion carrier connector from the previously mounted carrier and put the expansion carrier aside.

5Drill a pilot hole in the center of each of the four screw-hole marks.

6Anchor the screws approximately halfway into the backboard.

7If housing clips are to be installed on the housing and this is the last carrier in the control unit, place the housing clips around the right-hand molding for the screws on the back of the carrier.

If not, go to Step 8.

8Position the expansion carrier on the screws and slide it to the left, to reconnect the expansion carrier card extender to the previous carrier’s connector.

9Make sure the connection is secure.

10Make sure the carrier is level and that the housing clips extend as far as possible from the right side of the carrier.

11Tighten the screws.

Installing the Control Unit 2-27