User's Manual

2) Auxiliary Reader for DK-2800 Keypads (2nd Generation)
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Description
Maximum 3 auxiliary readers AR-2802 can be connected in parallel with the Data I/O Bus of the
DK-2800 master keypad for multi-station operation (compatible with all the keypads in DK-2800
2nd generation family). The auxiliary readers work in the same manner like the master keypad
in card reading. The master keypad is the server of the system in this example. It manages the
data among the devices connected to the Data I/O Bus.
The auxiliary reader is even compatible with master keypads without reader (such as the
DK-2831, DK-2851 and DK-2881 etc.). The auxiliary reader acts as EM card reader of the
master keypad and the user cards can be programmed to the master keypad through it.
ELECTRIC
LOCK
DK-2871 (Example)
MASTER READER
(THE SERVER)
AR-2802
AUXILIARY
READER
AR-2802
AUXILIARY
READER
DATA I/O BUS
( + ) POWER SUPPLY
COMMON( – ) GND
Wiring Diagram
System Connection
AR-2802 AUXILIARY READER
10987654321
RS
232
BUZ
LED D1
D0
DATA
I/O
TAMPER
N.C.
( + ) ( – )
12-24V DC
DK-2871(Example)
MESTER KEYPAD - THE SERVER
10987654321
TAMPER
N.C.
DOOR BELL
N.O.
( + ) ( – )
12VDC
DOOR LOCK
( + ) ( – )
DATA
I/O
EG
IN
DATA I/O BUS
( + )
( – )
EGRESS
BUTTON
N.O.
ELECTRIC
LOCK
( + ) ( – )
1N4004
N.O.
OR
Any Keypad
of DK-2800
Series
*JUMPER SELECTION
FOR ELECTRIC LOCK OF
(1) FAIL-SAFE OR
(2) FAIL-SECURE
THE FRONT PANEL
Power Indicator (Blue)
It is ON after the reader is powered.
Status Indicators
Red – A normally OFF indicator, it is ON in system lock-up due to false trials or manual inhibition
It is flashing during the master keypad in inhibition pause period.
Amber – It is ON in standby and turns OFF momentary when a valid card is read.
Green – An indicator controlled by external controller. It is prepared for free connection, e.g. such
as a Wiegand feedback indicator.
It turns ON momentary when a valid card is read.
Card Reader Window
A place gives best result for reading the EM cards.
●
●
●
AR2802 FRONT PANEL
12VDC
POWER
SUPPLY
( + )
( – )
Power Indicator
Status Indicators
(Red, Amber, Green)
Card Reader Window