
PS4350 External Battery Charger
Installation Instructions
1. Introduction
The PS4350/R is an external Battery Charger for use with
Maxsys panels.
Make sure that you also follow the recommendations of
the battery manufacturer. Battery replacement should be
performed as per the recommendations of the battery
manufacturer, or every 5 years.
NOTE: To determine the battery size required, please
refer to the battery calculation chart provided with the
panel.
2. Features and Specifications
Features
• Stand-by battery (not supplied)
• Automatic shutdown to prevent deep battery
discharge
• Self-resetting solid state over current protection
devices eliminate the need for replacement fuses
• Battery charging rate: 1.8A
Specifications
• Transformer supplied: 16VAC, 80VA
• Output: 12V
• Dimensions:
145mm L × 83mm W × 56mm H over heat sinks
5.7" L × 3.3" W × 2.2" H over heat sinks
DC , 1.8A
Please refer to the System Installation Manual for information on limitations regarding product
use and function and information on the limitations as to liability of the manufacturer.

3. Installing the PS4350
3.1 Unpacking
The PS4350/R package includes the following parts:
• One beige PC4055C cabinet OR one red PC4055CR
cabinet (15.0”H x 15.0”W x 6.9”D)
• One PS4085 charger module
• One PT1012 transformer, 16 Vac, 80VA
• Space for one 20-60Ah, 12 volt sealed lead-acid
battery (not included)
3.2 Mounting the Cabinet
When mounting the cabinet for the PS4350/R, select a dry
location within 1m/3.3ft of the control panel.
To mount the cabinet you will need:
• six - #10x2½” round head, steel wood-screws (not
supplied)
• six - #10x¾” round head, steel wood-screws (not
supplied)
• one - 20”x20”x¾” sheet of plywood (not supplied)
• screwdriver (not supplied)
• stud finder (not supplied)
To mount the cabinet:
1. Using the stud finder, find a
mounting location where the
plywood sheet can be
mounted to 2 different studs,
as shown .
When mounting the
plywood, ensure that the
bottom of the cabinet will not
be less than 16” and not
more than 48” from the floor.
2. Attach the plywood to the
wall using the six #10x2½”
round head steel screws.
3. From the back of the cabinet,
press in the four white
circuit board stand-offs into
the raised mounting holes.
4. Holding the cabinet in
position, pull all wiring into
the cabinet through the hole
in the back.
5. Using the six #10x¾” round
head steel screws, mount the
cabinet securely to the
plywood sheet, as shown.
6. Press the PS4085 module onto the plastic stand-offs.
3.3 Wiring
Before beginning to wire the unit, ensure that all power
(AC transformer and battery) is disconnected from the
control panel.
Consult the wiring diagram on the previous page for
instructions.
A minimum of ¼” (7mm) separation must be maintained
at all points between power limited wiring and all other
non-power limited wiring and connections. Wire entry for
power limited wiring must be separate from non-power
limited wiring.
3.4 Applying Power
After all wiring is completed, apply power to the control
panel. Connect the battery leads to the battery, then connect
the AC transformer. For more information on control panel
power specifications, see the control panel Installation
Manual.
NOTE: Do not connect the power until all wiring is
complete.
Security Products
TM
©1999 Digital Security Controls Ltd.
1645 Flint Road, Downsview, Ontario, Canada M3J 2J6
www.dscgrp.com
(416) 665-8460 • Fax (416) 665-7498 • 1-800-387-3630 Printed in Canada 29002896 R001