APPLICATION EXPANSIONS
Apart from standard-alone operation, DK-2891 is expandable to be a Multi-station System or a High
Security Multi-station Split-decoded System with its Data I/O Bus for the connection of the optional
auxiliary keypad(s) and decoder. The wiring is very simple. Just connect all the related devices in
parallel with the Data I/O Bus. The DK-2891 is the server that manages the data among them.
A Multi-station System provides higher security in access control and user convenience to operate an
electric lock at different locations. Such as a dual keypad system for area needs controlling of going
in and going out with user codes or EM cards.
A Split-decoded keypad system increases the overall security with keypad(s) installing outside and
decoder installing inside. It prevents the door can be opened due to sabotage at the external
keypad(s). A Split-decoded system is also compatible with the auxiliary keypads for multi-station
operation. It is a perfect system for overall higher security and user convenience.
The application examples here show the connections of the auxiliary keypads and the decoder to the
server keypad. Please contact your local agent for these optional devices if increasing security and
user convenience to the system is required.
The auxiliary reader / keypads and the decoders are compatible with all the 2nd generation keypads
in the DK-2800 MK-II series.
The version"A" auxiliary reader keypads are available, which provide Wiegand and RS-232 data
outputs.
Example:
User
Common
24680
1234
/
Output 1
Output 1
Output 2
Output 1
003
002
/
001
003
002
001
001
4
3
2
1
10
10
20
10
Tracy
Tom
May
John
Name
Location
Media
User ID
Code
Card #
Remark
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
--
1,000
6
5
4
3
2
1
LED
DATA
I/O
TAMPER
N.C.
( + ) ( – )
12-24V DC
10
9
8
7
6
5
4
3
2
1
LED
DATA
I/O
TAMPER
N.C.
( + ) ( – )
12-24V DC
WIEGAND
D0
D1
BUZ
RS
232
Version"A" ONLY
Connection Terminal
AR-2809
AR-2806
AR-2802 and AR-2807
10
9
8
7
WIEGAND
D0
D1
BUZ
RS
232
Version"A"
ONL
Y
C) LIST OF USER INFORMATION
The keypad can accommodate up to 1,100 users (codes / cards). To avoid confusion and for
programming convenience, it is suggested to make a list recording of the user information. It helps
the owner to program the user codes and cards smoothly and to trace them afterwards in the future.
Here is a suggested format of the list.
List of Users (See page 19-22 for reference)
5) EM Card + Proprietary Secondary User Code – Operation Media 3
The keypad accepts programming with each card having its own proprietary user code to work. It
prevents any other people can use the lost card to open the door. Card with proprietary user code
approach is ideal for the area that high security is the main concern.
This operation mode can also report Duress Alarm by keying in the duress code instead of
Secondary user code in emergency when the user is forced to open the door.
Aux. Reader-Keypad
Aux. Reader-Keypad
Aux. Reader-Keypad
Aux. Reader
AR-2809
AR-2807
AR-2806
AR-2802
The Axiliary Readers & Keypad (Optional)
Summary of Contents for DK-2891A
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