www.elpas.com
Page 1 of 3
DE6321_V4_09/13
VisAccess RDK-4
Proximity Reader with Keypad
Installation Guide
1. INTRODUCTION
The RDK-4 is a proximity reader with
keypad, compatible with the AXS-100
access control system.
The system is designed to limit access
to restricted areas, while permitting
authorized people to enter. The RDK-4
can be programmed by the installer to
offer one of three security levels for
opening the door:
1. Valid tag only.
2. Valid tag and user PIN (Personal
Identification Number) code.
3. Password only.
Figure 1 - RDK-4
It is recommended to install the RDK-4 on a wall outside the
protected area, and the AXS-100 control unit inside the protected
area.
Proximity access cards or tags are used as keys to open doors.
When presented to an RDK-4, the access card or tag emit a coded
RF signal that is read by the proximity reader. The reader prompts
the user for a 4-digit PIN code (applicable to security level 2). When
the correct PIN code is typed, the control unit verifies that the card
is valid and makes the decision as to whether it should energize an
output relay that releases the lock. All activity involving the proximity
readers is recorded and logged by the AXS-100.
For information about the AXS-100 system, refer to the AXS-100
user’s guide and installation instructions.
2. SPECIFICATIONS
Power input:
12-16V DC From the AXS-100
Buttons:
12 (numeric keypad)
Frequency:
125 kHz
Tag reading range
: 50 - 100 mm (2 - 4 in.)
Tag codes possibilities:
10
12
possible combinations.
Cable (to AXS-100 control unit) maximum length:
100 m (320 ft)
Minimum distance between readers:
60 cm (2 ft)
Weight:
170 g (6 oz)
Color:
Metallic brown
Dimensions (L x W x D)
: 122 x 82 x 31 mm
(4 - 13/16 x 3 - 1/2 x 1 - 1/4 in.)
Operating temperature:
-20°C to 50°C (-4°F to 122°F)
3. MOUNTING
Mount the proximity reader outside the door on the wall or door
frame. The RDK-4 comes with a 1m (3 ft) cable.
Note:
When installing more than one RDK-4, the distance
between the readers should be at least 60 cm (2 ft.), to ensure
proper operation.
To mount the proximity reader:
A. Remove the case closure screw.
B. Separate the base from the keypad assembly.
C. Place the base on the installation surface, mark points, drill
the holes and insert plastic anchors, if necessary.
D. Fit the base into the rubber gasket and use the 2 mounting
screws to attach the base and gasket to the selected
surface.
Figure 2 - Base and Gasket
4. WIRING
Each RDK-4 reader is connected to the control unit via a
four-wire cable. The standard cable is color-coded. Use a cable
with the same colors to avoid mistakes in connection. Connect
each proximity reader to the reader sections on the AXS-100
connector blocks. See diagram for color-coding.
PWR
GND
TX
RX
READER 1/2
Red
Black
Green
White
AXS-100
AXS-100XT
RDK-4
Figure 3 - Connection to AXS-100
