Installing Expansion Carriers - AT&T MERLIN LEGEND Release 3.1 Installation Manual

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 2–9 and Figure 2–5 throughout the procedure.
1 Locate 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.
2 Align the connector of the expansion carrier with the card extender on
the previously mounted carrier and slide the connector onto the
extender.
3 Mark 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.
4 Disconnect the expansion carrier connector from the previously mounted
carrier and put the expansion carrier aside.
5 Drill a pilot hole in the center of each of the four screw-hole marks.
6 Anchor the screws approximately halfway into the backboard.
7 If 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.
8 Position 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.
9 Make sure the connection is secure.
10 Make sure the carrier is level and that the housing clips extend as far as
possible from the right side of the carrier.
11 Tighten the screws.
Installing the Control Unit
2–27