PAD-4 Installation, Operation and Maintenance Manual
18.104.22.168 Multiple Module Battery Connection
For applications where multiple PAD-4 boards are
mounted in an enclosure with System 3 rails, it
may be possible to connect two boards to a
single battery set. When using a single battery set
for two boards, the following rules must be
a) Both PAD-4 boards must be located within
the same enclosure and mounted adjacent to
b) The combined battery A.H. rating required for
both boards does not exceed 18 A.H.
c) Each PAD-4 and associated FP2011-U1
must be mounted on S3AP adapters. Refer to
the S3AP manual, P/N 315-050257.
d) One of the PAD-4 boards must have its
charging circuit disabled.
e) Two (2) battery connection splitters (part
number 230-299203) are used on the battery
set for proper connection.
The following steps and diagrams explain how to
connect two PAD-4 boards to a single battery set.
1. Install a battery connection splitter (see
Figure 2-10) to the positive and negative
terminals on the battery set. If the battery set
contains two 12-volt batteries to be wired in
series, install one splitter on the positive
terminal of battery #1 and the other to the
negative terminal of the battery #2.
2. Connect the black wires from both PAD-4
boards to the splitter on the negative terminal
of battery #2.
3. If the battery set contains two 12-volt
batteries, connect the jumper wire from the
remaining single positive terminal of battery
#2 to the negative terminal on battery #1.
4. Connect the red wires from both PAD-4
boards to the splitter on the positive terminal
of battery #1. See Figure 2-11.
5. Disable the battery charger on one of the
units. See Section 5.2 for directions.
To Battery Terminal
Battery Connection Splitter
Dual Module Battery Connection
To each PAD-4