14 : O/P 1 INHIBIT N.O. (Output 1 Inhibit Control Input – Normally Open)
A Normally Open (N.O.) sensing input point for controlling the Output 1, with this terminal
connecting to (-) ground, the
Egress Button, the group of User PINs and Cards for Output 1 are
all disabled
. It is prepared mainly for the cross wire connection with the “Inter-lock O/P” point of
the partner keypad in an Inter-lock system.
NOTE:
The inhibit function does not govern the Duress Codes and the Super User Codes. They are
15 : INTER-LOCK O/P (Inter-lock Control Output)
An NPN transistor open collector output with maximum power rating of 24VDC/100mA sink. It is OFF
at normal condition and it switches to (-) ground immediately for the first 5 seconds after keying in
a valid User Code or reading a card to operate Output 1, then, it will keep tying to (-) ground during
the Door Position Sensor is open circuit due to door opening. Use this output point to make cross
wire connection with the partner keypad’s “O/P 1 Inhibit” point in an Inter-lock system to prevent
both doors can be opened at the same time.
An Inter-lock System:
An inter-lock system is a two-door system that always allows only one of the doors to open during
the operation. While one of the doors is opened, the other door keeps close until the open door is
re-closed. It prevents the unauthorized people dashing into a protected area while the doors are in
use.
An inter-lock system needs two keypads and two door position sensing switches for the two doors.
16 - 17 : TAMPER N.C. (Tamper Switch Normally Closed Contact)
A normally closed dry contact while the keypad is secured on its box. It is open while keypad is
separated from the box. Connect this N.C. terminal to the 24 hour protection zone of an alarm
system if necessary.
18 : DATA I/O PORT (Data Communication Bus)
Data I/O port is prepared for setting up a data bus for the connection of the auxiliary reader-keypads
and the split-decoder in system expansion. See the examples in “Application Expansions” section for
the details.
always valid.
1) Dual-station Access Control Door Lock
Description
Owner can select an auxiliary reader AR-2802 or an auxiliary reader-keypad AR-2806, AR-2807
or AR-2809 and connect it with the master keypad DK-2852 to expand the system with
dual-station for user convenience. Simply connect the reader or the reader-keypad in parallel
with the Data I/O Bus of the master keypad. The auxiliary reader accepts all the cards that are
programmed in the master keypad. If it is an auxiliary reader-keypad it accepts cards and user
codes like the master keypad.
Note:
Keep
Operation Mode
setting of the keypad in
“Keypad Mode (default)”
with
Location
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
DK-2852
(MASTER KEYPAD)
AR-2802 S or A
(AUXILIARY READER)
ELECTRIC LOCK
System Connection
94 = 0
in this application.
AD-1312 OR AP-960
(–) COMMON GND
(+) POWER SUPPLY
DATA I/O BUS
AR-2802S AUXILARY READER
OR
AR-2802A
DK-2852
TAMPER
N. C.
(+) (–)
12-24V DC
LED
DATA
I/O
Wiring Diagram
Dual-Station Access Control Door Lock
EGRESS BUTTON
(INSIDE THE HOUSE)
MORE EGRESS
BUTTONS CAN
BE CONNECTED
IN PARALLEL
