DSC MAXSYS PC4020 System Manual

8
Control Panel
16 zones
• 16 fully programmable supervised zones (EOL
resistor)
• Programmable for Double EOL resistors
Audible alarm output
• Bell output
700 mA, PTC 2.5 Amps, 12 V
DC - commercial
11.6 - 12.6 VDC - residential
• Steady or pulsed output
Nonvolatile RAM (Internal Memory)
• Does not lose codes or system status on complete AC
and battery failure
Programmable output
• Transistor switch sinks 3 A to ground
• Programmable for 1 of 35 options
Powerful 1.5 amp regulated power supply
• 500 mA auxiliary supply, 11.6 - 12.6 V
DC
(400 mA for UL Listed systems)
• Separate PTC for battery, auxiliary supply and bell
output
• Electronic shut down protection of the Combus
• Supervision for loss of AC power, low battery, electronic
shut down of modules
• Internal clock locked to AC power frequency or optional
crystal time base
Switched Auxiliary Supply Output
• Programmable for 1 of 35 options
• 11.6 - 12.6 V
DC
• 300 mA maximum
Battery
• 12 volt 4 Ah minimum rechargeable gel-cell or sealed
lead-acid battery
Transformer
• 16.5 VAC, 40 VA
Output Voltage
Typically, with normal AC on and a fully charged battery,
the output voltage will be 13.8 VDC. With AC off and the
battery discharging, the voltage will go below 10 volts and
then battery cutoff will occur preventing further discharge.
Devices that require power from the control panel should
be capable of operation over the voltage range of 10 to 14
V
DC.
Remote Keypad
• Four wire (QUAD) hook-up
• Alphanumeric liquid crystal display
• Built-in piezoelectric buzzer
• Full annunciation of zones and system status
• Dimensions 5.5” x 4.5” x 1” deep (150 x 114 x 25 mm)
• Rated current draw of 55 mA
PC4020 MAIN BOARD
SPECIFICATIONS

DSC MAXSYS PC4020 Specifications

General

Partitions	8
Event Buffer	1000 events
Keypads	16
Power Supply	16.5V, 40VA transformer
Battery Backup	12V 7Ah (typical)