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EN
EN
A22K
High Security Access Control 2-Doors Module
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READERS AND KEYPADS
The A22K allows automatic format detection and decoding of the connected reader/keypad. When installing a
keypad with a Wiegand output, the keypad’s “D0” and “D1” wires should be connected to the same terminals as
the reader (the reader or keypad LED and buzzer outputs must be open collector).
The ATRIUM system is configured by default for the K1, NANO, STAR and SOLAR reader models which display a
bright blue backlight in standby mode. Other popular Wiegand readers and keypads are also supported. Contact
us to confirm compatibility. Most readers and keypads have built-in buzzers and LEDs. These should be connected
to module’s programmable outputs (B1, G1, R1 for READER 1 and B2, G2, R2 for READER 2). These are open
collector outputs capable of sinking 100mA. Please note that the B, G and R outputs are programmed for a 7-wire
reader by default.
Reader LED status:
Standby:
LED indicator is steady blue
Access granted:
LED indicator changes from blue to green
Access denied:
LED indicator changes from blue to flashing red
Door unlocked by a schedule:
LED indicator changes from blue to brief green
Typically, the reader buzzer or an external sounding device will inform the card user that the door has been left
open after a valid access or the door has been forced open. The functions of all these outputs are programmable
through the ATRIUM software.
BOX TAMPER SWITCHES
Connecting the tamper switches allows the A22K to detect when the cabinet door is opened and/or when the
cabinet is removed from the wall. To install the tamper switches, see “Installing the Tamper Switches”.
To use both switches:
1.
Connect one end of the supplied wire to the door tamper switch
terminal and the other end to the wall tamper switch terminal.
2.
Connect the other terminal of the door tamper switch to the “TMP” terminals using the
supplied wire.
3.
Connect the other terminal of the wall tamper switch to the “GND” terminals using the
supplied wire.
+12V DC
+24V DC
-
+12V DC
-
+12V DC
A+
B-
Input 1
Input 2
Output 1
Output 2
INPUT
POWER
SUPPLY
RS485
LOCAL
BUS
ETHERNET
PORT
SYSTEM STATUS
EXTRA
INPUTS/
OUTPUTS
ETHERNET
LOCAL BUS
LOCK 1 & 2
JUMPER SETTING
STATUS
24V DC INPUT/
BATTERY/
MODULE TYPE
BATTERY
BACKUP
Metal Box
Door Tamper Switch
(N.C.)
Metal Box
Wall Tamper Switch
(N.C.)
READER DOOR 1
INPUT
DOOR 1
LOCK
DOOR 1
LOCK
DOOR 2
INPUT
DOOR 2
READER DOOR 2
ENCLOSURE
TAMPER
SWITCH
INPUT
BUZ GRN RED D1 D0 GND 12V
BUZ GRN RED D1 D0 GND
GND
C1
12V
12V
REX1
GND
GND
C1 NO1 NC1
LK1+ LK1-
C2 NO2 NC2
LK2+ LK2-
TMP
C2
12V
REX2