User's Manual

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DE6302_V4_09/13
VisAccess RDR-2/RDM-2
External 26-Bit Wiegand Proximity Readers
Installation Guide
1. INTRODUCTION
The RDM-2 (Mullion type) and RDR-2 are external proximity
readers, compatible with the Prox-in-a-Box (PIAB) access control
system. The system is designed to limit access to restricted
areas, while permitting authorized people to enter.
The readers are 26-bit Wiegand compatible proximity readers
and can be used with any other compatible access control
system.
It is recommended to install the readers on a wall outside the
protected area, and the PIAB control unit inside the protected
area.
Proximity access cards or tags are used as keys to open these
doors. When in the presence of the readers, the access card
emits a coded RF signal that is read by the proximity reader.
The RDR-2/RDM-2 then
forwards this signal to the
PIAB control unit. 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.
RDR-2 RDM-2
Fig. 1 External View
For information about the PIAB system, refer to the PIAB user’s
guide and installation instructions.
2. SPECIFICATIONS
Format: 26-bit Wiegand serial communication
Indicators: Tri-color LED (green, red, amber).
Frequency: 125 kHz
Tag reading range:
RDR-2: 50 - 100 mm (2 - 4 in.)
RDM-2: 40 - 80 mm (1 - 3 in.)
Current Drain: Nominal 50mA, Max. 70mA @12VDC
Operating temperature: -20°C to 50°C (-4°F to 122°F)
Dimensions (L x W x D):
RDR-2: 116 x 70 x 16.8 mm (4 - 1/2 x 2 - 3/8 x 5/8 in.)
RDM-2: 94 x 43 x 16 mm (3.7 x 1.7 x 0.6 in.)
Cable (to PIAB control unit) maximum length:
6-conductor cable
22 AWG up to 60 m (200 ft)
18 AWG up to 100 m (320 ft)
Minimum distance between readers: 60 cm (2 ft)
Environmental Protection (Solids, Liquids, Impact): IP677
Weight:
RDR-2: 121.5 g (4.3 oz)
RDM-2: 105 g (3.7 oz)
Color: Metallic brown (option - white)
3. MOUNTING
Mount the proximity reader outside the door on the wall or door
frame. The RDR-2/RDM-2 comes with a 1m (3 ft) wire lead.
To mount the proximity reader:
A. Insert a screwdriver into the recess at the bottom or top of the
case, and separate the cover from the reader.
B. Place the base on the installation surface, mark two screw
holes, drill the holes, and insert plastic anchors, if necessary.
Figure 2. RDM-2 Mounting
C. Fasten the base to the mounting surface, using two screws.
D. Replace the reader’s cover, ensuring that the cover is aligned
with the reader. This enables the LED to be visible.
Figure 3. RDR-2 Mounting
Note: Do not install the RDR-2/RDM-2 on a metal surface or a
metal door frame, since this decreases the read range
significantly. If you have to install the reader on a metal surface,
use a spacer so that the reader will be at least 1 cm (3/8 in.)
away from the metal. You may use RDR BACK (for RDR-2) or
RDM-BACK (for RDM-2) which is an optionally available spacer
made specifically for this purpose.
Note: When installing more than one reader, the distance
between the readers should be at least 60 cm (2 ft.), to ensure
proper operation.

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