Introduction - DSC Maxsys PC4020 System Manual

INTRODUCTION

The PC4020 is a highly flexible and versatile control which
will enable the installer to meet the most demanding
security requirements. The heart of the system is the main
control panel, designated the PC4020, which is
connected to other system elements using common 4
conductor unshielded station wire. The main panel
processes signal information and communicating with the
monitoring station. The main panel is capable of
supervising 16 zones, any of which may be defined for fire
or burglary applications and also manages up to eight
separate and fully independent partitions, assigning
zones and their controlling keypads in accordance with
installer programming.
The basic 16 zone capability of the PC4020 can be
expanded using either PC4108, PC4116 or PC4164 modules
which provide 8, 16 or 64 zones of additional inputs
respectively up to a system maximum of 128 zones. The
PC4108 and PC4116 are designed for use within any of the
cabinets and are shipped as PC boards only. The PC4164 is
designed to be placed inside the supplied cabinet.
Programming and system operation are carried out using
the LCD4500 liquid crystal display keypad. The LCD4500
connects at any point in the system to the four wire
communication bus or "Combus", its specific identification
being determined automatically in the process of installing
it. A maximum of 16 LCD4500 keypads may be used on
any one system regardless of size.
The PC4204 relay output module is available for
installations requiring additional power beyond the 500
mA supplied by the PC4020 main panel. This module
comprises a 12 volt DC power supply of 1.5 Amp capacity
and four 12 volt relays with form C contacts which will
provide switched outputs under any of the 35 options
available in the list of programmable outputs. The PC4204
connects to the Combus via four wires as with other
system elements. It requires a 16 -18 volt, 40 VA
transformer and a 12 volt battery. Up to 16 PC4204
modules may be installed on any one system. The
PC4204 is shipped as a PC board only.
The use of any power source other than a PC4204 to
repower the Combus will result in a system
malfunction.
The PC4216 low current module provides 16 separate
outputs. Each output may be programmed to operate
under the control of 1 of 35 options as listed in the
programmable options section of the installation manual.
Up to 8 other PC4216's may be used to provide outputs
for graphic annunciator or similar devices for the
maximum of 128 zones. The PC4216 connects to the
Combus with four wires. A maximum of 9 PC4216's may
be connected to a system. The PC4216 may be installed
in the main cabinet or in other cabinet options and is
shipped as a board only.
The PC4020 includes the capability of driving a serial
printer using the PC4400 serial interface module. The
PC4400 connects to the Combus with four wires. The
printer may be located up to 200 feet (60 meters) away
from the module. The PC4020 is also capable of
communicating to a DVAC network using the PC4400
serial interface module. The PC4400 is shipped as a
board only.
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