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System Manual • W A R N I N G • This manual contains information on limitations regarding product use and function and information on the limitations as to liability of the manufacturer. The entire manual should be carefully read. ®...
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DSC. Custom products are only warranted to the extent that they do not function the level of protection expected. A reevaluation must be done during and after any construction activity.
INTRODUCTION The PC4020 is a highly flexible and versatile control The use of any power source other than a PC4204 to which will enable the installer to meet the most repower the COMBUS will result in a system demanding security requirements. The heart of the malfunction.
SYSTEM OVERVIEW Maximum System Capabilities Supervised Alarm Output • Control Units - 1 PC4020 Main Board • Bell Output, 700 mA fused at 5 Amps, • 128 Zones 12 V - commercial and 11.6 - 12.6 V - residential PC4020 Main Board: 16 zones •...
INSTALLATION AND WIRING When designing a security system with the PC4020 that 4 Zones may be grouped together into partitions. Knowing will be larger than 16 zones or have two or more the zone number of each zone will allow the partition Partitions it is best to first lay out the system on paper.
11 The PC4216 module provides up to 16 programmable At this point the display will read "Please Activate Zone". outputs. Each output can be programmed for 28 Open and close the zone 2 times. (Note: the zone may different options (See PGM Output List). It is also require to be tripped more depending on the location of the used to display zones/status on a graphic zone).
Battery Troubles power down the COMBUS, the PC4204 will mimic the PC4020 and cut off its power supply to the module. The If a zone has a low battery trouble, then that zone does module will be powered down. When the PC4020 returns not report in with a zone supervisory within the power to the COMBUS, the PC4204 will reconnect its power "supervision time".
All LCD4500 keypads should display the Step 1 - Define all Partitions message ‘LCD4500 DSC Ltd.’. Press a key on any When the panel is first powered up the 16 zones on the keypad that is to be assigned to Partition 1. The keypad main panel are assigned to Partition 1.
Go to a Programming Guide. keypad assigned to the desired partition and enable the Note: Panels returned to DSC with the Installer’s features through [✱][6][Master Code] commands. Lockout feature enabled and no other apparent problems will be subject to an additional service charge.
PC4020 MAIN BOARD SPECIFICATIONS Control Panel Output Voltage Typically, with normal AC on and a fully charged battery, 16 zones the output voltage will be 13.8 V . With AC off and the • 16 fully programmable supervised zones (EOL battery discharging, the voltage will go below 10 volts and resistor) then battery cutoff will occur preventing further discharge.
MODULE SPECIFICATIONS PC4108 Expansion Module • 4 possible baud rates 300, 600, 1200 and 2400 • 4-wire (QUAD) hook-up to COMBUS • Up to 128 zones total on system • Nominal current draw of 35 mA • 8 zone expansion module •...
PC4020 CONTROL PANEL WIRING DIAGRAMS GROUND CONNECTION COMBUS TO ALL MODULES 120 V 40 VA Washer BELL LOOP Cabinet TRANSFORMER 700 mA MAX 16-18 V @ 40 VA DO NOT CONNECT TO BE SURE TO OBSERVE Bolt RECEPTACLE POLARITY WHEN CONECTING POLARIZED SIRENS OR BELLS Ground...
62/19 30/9 POWER SUPERVISORY ALARM CONTACT RELAY (DSC RM-1) Wire Maximum Run to End of Line Resistor Notes: 5600 Ω applies only to the PC4020 Gauge (feet / meters) main board. Use 2200 Ω (red, red, red, gold) for the expansion modules.
TERMINAL CONNECTIONS COMBUS Terminals This “Terminal Connections” section only refers to the main board of the PC4020 system. Other connections “RED”, “BLK”, “YEL” and “GRN” are shown in the module wiring diagrams. Connect the red wire of the COMBUS to the “RED” terminal, the black wire to the “BLK”...
Telephone Terminals Battery Connections “T I P ”, “R N G ”, “ T-1” a n d “R-1” Do not connect the battery or the transformer until the wiring is complete. Connect the red battery lead to the The wires from the RJ31-X telephone jack are connected positive battery terminal and the black lead to the negative to these terminals in the following way.
SYSTEM KEYPAD FUNCTIONS Many of the functions in the PC4020 have limited access [✱][5]. The default access code is ‘1234’ for 4 digit option, so that only certain users may have control of special and ‘123456’ for 6 digit option. See ‘User Programming functions.
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will be displayed for 3 seconds. Then the display will Pressing the right arrow key displays the message return to SELECT (1) < > FOR OPTIONS ENTER YOUR ACCESS CODE If the selected partition is armed the LCD will prompt with the message If the partition is armed the message on the LCD will be SELECT (0)
Arming To access the System Master Menu from a global keypad, select a partition, re-enter the System Master Close all protected doors and windows and stop movement Code, then press [9] or use the [<][>] keys to scroll in areas covered by motion detectors. through the menu.
To arm the partition which you are at simply press [✱ ✱ ✱ ✱ ✱ ] or assigned will be displayed. The message use the hotkey (0). The message (2) TO SELECT < > (Partition Label) EXIT DELAY IN PROGRESS will be displayed with the partition status at the right corner of the LCD.
Trouble Display [1] Bypass Zones takes you immediately to bypassing zones. Use the [<] [>] to select the zones to be [✱]+[2] bypassed and press the [✱] key to select the zone. A The PC4020 continuously monitors a number of possible “✱”...
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TLM Trouble - A telephone line trouble is generated COMBUS Low Pwr - Modules are not getting enough when the line voltage drops below 3 volts for more than voltage from the COMBUS. Check for proper connection of 30 seconds. A keypad trouble is generated when the COMBUS, or the COMBUS needs to be repowered.
Zn LwBatt Fault - This trouble condition will occur when has gone into zone Tamper will be displayed as "Zone a wireless zone has a low battery condition. To view Tamper <>" with the zone label on the bottom line of the which zone has the trouble press the [✱] key while LCD.
Programming Additional Access Codes Bypass Only Code allows the user to bypass zones on partitions to which the code is assigned. Using a System Master or a Supervisory Code Door Strike Code allows the user to operate door strikes only within the partition to which the code is assigned. Press [✱] then [5] to enter the User Programming Commands;...
While programming the access code label, press [7] To Exit the menu, press the [#] key. the [✱] key to call up an options menu. To select 2 User Name Search [1] This option will allow selection of an option, press the corresponding number key the user to be programmed by searching using the user or scroll through the options using the [<][>] name.
Quick Exit function is selected, the Keypad Setup menu will appear on the keypad. [✱]+[6]+[Access Code]+[1] • Bright Control adjusts the level of backlighting on The “Quick Exit” function is enabled by toggling to “Y” the LCD display and the backlighting on the keys. on the keypad.
The sixth message is “Zone Tamper”. It will be Note: displayed if the zone is opened while using Double EOL DLS IN PROGRESS resistors. LOCKOUT See “Event Messages” in the Programming Guide. will be displayed on the keypad when the downloading Note: The Zone Fault and Zone Tamper event computer is On Line with the panel.
ACCESS CONTROL FUNCTIONS Reader LED Flash Rates To gain access to a locked access control door first swipe the card in the method indicated by the access card reader Most access card readers will have an LED output to installation manual. When the LED on the reader changes provide visual feedback from the reader to the user when state, the door has been unlocked and can be opened.
PRINTER SETUP The PC4400 module is used for sending serial Most actions on the PC4020 that require an access code communications through an RS232 port to a local printer are logged to the event buffer, and are sent to the printer for on site monitoring of the PC4020.
APPENDIX B List of Diagnostics Indicated PC4400 RS-232 Indicated PC4204 O/P Number Module Number Number Module Number E = Communication error T = Tamper open LV = Low voltage to module Indicated PC41XX Zone Indicated # For Future Use Number Module Number Number Indicated...