1
S e c t i o n 1
The PC4820 is a versatile Dual Card Reader Access Control
module which will enable you to meet the most
demanding access control requirements of an installation.
The PC4820 is monitored and programmed via the
PC4010/4020 control panel. Up to 16 PC4820 modules can
be connected to a PC4010/4020 via a 4-conductor Combus,
using standard, unshielded station wire.
Each PC4820 is capable of providing supervision for two
door inputs which may to assigned to any PC4010/4020
zone. Each door contact may be configured for any zone
end of line option which the control panel can provide.
Each of the two PC4820 Access Card Readers can be
programmed to function independently on different
doors, or together controlling access for both sides of one
door.
Control of the access points can be performed using a
variety of equipment. The PC4820 supports four different
types of card readers: the Polaris magnetic strip reader,
the Shadow Prox proximity card reader, the HID proximity
readers, and 26-bit standard Wiegand card readers. The
PC4820 also supports the use of any request to exit device
including the T-REX exit detector.
1.1 PC4820 Access Control Module
Specifications
Two Zone Inputs
• Two programmable supervised zones ( EOL resistors
– value )
• Zones may be programmed as Standard or Auxiliary
delay zone types
• PC4010/4020: up to 16 PC4820 can be added (up to
32 access points)
Non Volatile RAM (internal memory)
• Does not lose any system programming when the
module is powered down.
Low Current Outputs
• Six low current outputs (open collector outputs
switched to ground 25mA max.) :
• Two LED terminals - To the LED input of the
reader
• Two BUZ terminals - To the Buzzer input of the
reader
• Two OUT terminals - Reserved for future use
Regulated Power Supply ( 1.5 Amp max. )
• Electronic shutdown protection of the battery,
auxiliary output, 5 and 12 V reader power supplies,
and lock device power output
• Auxiliary output supply: 12V
DC
, 125mA Max
• LK1 and LK2 Door Strike power: 12V
DC
, 250mA Max
• Reader Power 5V
DC
, 125mA Max
• Reader Power 12V
DC
, 125mA Max
Reader Technology
• Polaris, Shadow Prox, HID Proximity and 26-bit
Standard Weigand format
Access Card Compatibility
• Polaris POL-C1CN - Polaris Magnetic Cards
• Shadow Prox, Module Numbers:
SH-C1 - Shadow Prox Card
SH-K1 - Shadow Prox Keytag
• HID Proximity:
HID-C1325KSF - Proximity Card
HID-C134KSP - Proximity Keytag
• Weigand - Standard 26 bit formats
Battery
• 12V
DC
7.0Ah recommended rechargeable gel-cell
Transformer
• 16.5 V
AC
, 40VA
Operating Temperature
• 2
°
C to 40
°
C (35
°
F to 110
°
F) operational Temperature
Range
• 90
°
non-condensing humidity
Output Voltage
• Output voltage = 13.8V
DC
(with normal AC and a
fully charged battery). Devices that require power
from the PC4820 should be capable of operation over
the voltage range of 10 to 14V
DC
.
• 5V Power Supply - Devices connected to the 5V
supply should be capable of operation between 4 and
6V.
Introduction
