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DSC PC4820


Fully Supervised Outputs for Open, Short and Ground Fault, Connect Up to 4 Modules, Provides 2 Alarm Notification, Circuits: Rated at 1.8 Amps @ 24 VDC Each,

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MAXSYS 2-Reader Access Control Module

The DSC PC4820 MAXSYS 2-Reader Access Control Module is a 2-reader access control module which can be programmed to control separate doors or be used to control user access on both sides of the same door. The PC4820 supports a wide range of 26-bit Wiegand readers, such as Polaris™, ioP r o x™, Shadowprox™, HID and Kantech XSF Technologies. The PC4820 also supports any request-to-exit detector, such as the T- R E X™.


The DSC PC4820 MAXSYS 2-Reader Access Control Module connects up to 16 modules. It has Multiple reader technologies. It comes with 2 supervised lock outputs – 250 mA per output. The module has 64 user access levels, 99 date schedules, 4 holiday groups, Non-volatile RAM (internal memory), and Arm/Disarm partitions via access control. The DSC PC4820 comes with PC4053 beige cabinet. The PC4820 has 2 access door support per module for up to total of 32 on system.


The DSC PC4820 is an access control module if you need controlled access to a building. This access control module is used in conjunction with a MAXSYS PC4020 alarm panel and will keep the building secured against anyone that doesn't hold an access card. The PC4820 can be used to supervise two door inputs that can be connected to any zone on the PC4020. The card readers can be programmed to operate two different doors or work in conjunction together to control both sides of one door.


The DSC PC4820 has Dimensions of 7 3/16” x 4 3/4” (182 mm x 121 mm), Output Voltage13.8 VDC, Battery 12 V, 7.0 Ah rechargeable lead acid, Transformer 16.5 VAC, 40 VA, Power Capacity Per Door: Reader 125 mA (Max) @ 5 VDC/12 VDC, Lock 250 mA @ 12 VDC, Regulated Power Supply 1.5 Amp, Auxiliary Output Supply 125 mA (Max) @ 12 VDC, Current Draw 35 mA (from COMBUS), Operating Environment 32°F to 122° F (0°C to 50° C), and Relative Humidity 5% to 85%.


The DSC PC4820 MAXSYS 2-Reader Access Control Module has Approval Listings: European CE Directives (EMC), FCC/IC, UL/ULC.



PC4820 MAXSYS 2-Reader Access Control Module Features:


  • Connect up to 16 modules
  • Multiple reader technologies
  • 2 supervised lock outputs: 250 mA per output
  • 2 access door support per module for up to total of 32 on system
  • 99 date schedules
  • 4 holiday groups
  • Arm/Disarm partitions via access control
  • PC4053 beige cabinet included
  • 64 user access levels


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