Installation; Caution: Static Electricity; Step 1. Fit The Case; Fitting - Cooper Security EXP-PSU Installation Manual

3. Installation

Note: The installation steps listed below
assume that you have already decided on
the required location for the EXP-PSU.

Caution: Static Electricity

Like many other electronic products, the
EXP-PSU contains components that are
sensitive to static electricity. Try not handle
the PCB directly. If you must handle the
PCB, take the standard precautions against
damage by static electricity.

Step 1. Fit the Case

Fitting

To prevent access to the inside of the EXP-
PSU through the holes in the rear of the
case you must mount the unit on a wall or
other flat surface.
Locate and mark the position of the case.
Mark the position where the lid/back
tamper bracket touches the wall.
Fit the tamper shroud at the position where
the lid/back tamper touches the wall, see
Figure 5.
Figure 5 Fitting Tamper Shroud.
Mount the case vertically, as shown in
Figure 2. Use all three fixing holes. Use
No14/M6 screws at least 50mm long,
inserted into wall anchors appropriate for
the type of wall. Figure 2 shows the fixing
holes and cable entries.
WARNING Ensure that the fixings are
strong enough to support the weight of the
EXP-PSU, its lid and two 17Ah lead acid
Page 6
batteries. The total weight of the EXP-PSU
plus batteries can be up to 18kg.
Protect the unit from dust and drilling
debris when drilling the fixing holes.

Installing the Lid/Back Tamper

Fit and connect the combined lid/back
tamper (provided). Ensure that the switch
is oriented as shown in Figure 6.
Figure 6 Lid/Back Tamper
Item 5 in Figure 3 shows the connector for
the lid/back tamper.
Note that to be approved at Security Grade
3 you must fit the lid/back tamper.

Step 2. Run Bus Cable

Please read "Bus Cabling Requirements on
page 4.
Step 3. Connect EXP-
PSU to the Bus
The EXP-PSU provides two bus connectors
(items 1 and 2 on Figure 3).
From control unit
To rest of syste m
Figure 7 Bus Wiring EXP-PSU
Use the BUS IN connector to terminate the
bus cable from the part of the system that
is being powered by the control unit (or
other remote power supplies).
CAUTION DO NOT connect the 12V line of
the bus to BUS IN.
Use the BUS OUT connector to terminate
the bus cable to the portion of the system
being supplied by the EXP-PSU.
EXP-PSU
0V
Bus In
A
B
0V
+12V
Bus Out
A
B