DSC MAXSYS PC4702BP Installation Instructions

1. Introduction
The PC4702BP is a power supply/bell panel for use with
PC4010CF and PC4020CF Maxsys security systems. Up
to 4 modules may be installed on one system.
For more information on PC4010CF/4020CF options and
programming, please refer to your PC4010CF/4020CF
Commercial Fire Installation Guide.
2. Specifications
• Connects to control panel via 4-wire Combus
• Current Draw: 30 mA (from Combus)
• Two supervised Class 'B'/Style 'B' Bell outputs: 24
V FWR, 1.5A each, maximum 2.5A combined
DC
current draw. Outputs supervised for opens, shorts
and ground with self-restoring short protection
• Supervised battery charger, 24 V
current for sealed lead-acid rechargeable batteries
• Power transformer: 28 V
cabinet )
3. Installing the PC4702BP
3.1 Unpacking
The PC4702BP package includes the following parts:
• One PC4702 circuit board
• one PT1024 28V
AC
• Four plastic stand-offs (for PC4702 board)
• One - PC4052CR red cabinet, or PC4052C beige
cabinet – 12.0"W x 12.0"H x 4.5"D with space for two
12 V , 4.0Ah sealed lead-acid rechargeable batteries
DC
• Two listed 2200Ω resistors
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.
, 350 mA charging
DC
, 175 VA ( mounted in
AC
, 175VA transformer
PC4702BP Power Supply/Bell Panel
3.2 Mounting
Install the PC4702BP in the PC4052CP cabinet, mounted
in a dry, secure location at a convenient distance from the
connected devices.
Perform the following steps to mount the unit:
1. Press the four plastic stand-offs through the mounting
holes at back of the cabinet.
2. Secure the cabinet to the wall in the desired location.
Use appropriate wall anchors when securing the
cabinet to drywall, plaster, concrete, brick or other
surfaces.
3. Press the circuit board into the plastic stand-offs to
secure the module to the cabinet.
Once the unit is mounted, wiring may be completed.
3.3 Installation and Wiring
Before beginning to wire the unit, ensure that all power
(AC transformer and battery) is disconnected from the
control panel.
Perform the following steps to complete wiring:
1. Connect the four Combus wires to the PC4702BP.
Connect the red, black, yellow and green Combus
wires to the RED, BLK, YEL and GRN terminals,
respectively.
2. Complete all other wiring according to the wiring
diagrams above.
3. Consult the wiring chart on the back of this sheet.
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.

Installation Instructions