Installation Note
Cardax Prox Plus 125 Reader
CAUTION
This equipment contains components that can be damaged by electrostatic
discharge. Ensure both you and the equipment are earthed before beginning
any servicing.
Before you Begin
Unpack the Cardax Prox Plus 125 reader and check the shipment contains the following
items:
• 1 x Cardax Prox Plus 125 base with cable and Processor Box attached
• 1 x Cardax Prox Plus 125 facia
• 1 x printed circuit board (PCB) assembly
• 1 x dispatch kit containing the following;
1 x 4-way IDC connector
1 x grommet plug
4 x self tapper pan head screws
4 x plastic caps
Part Number 3E1086 R2 1
September 2002
Power Supply Requirements
The Prox Plus 125 reader requires a supply of 13.6 V DC +/- 15% at 200 mA.
Prox Plus 125 readers require a good quality linear power source.
Note: Switch mode power supplies are not recommended as they may reduce the
read range of the Prox Plus 125 reader.
Cabling
Use 4 core, 0.2 mm2 (AWG 24) cabling with a maximum, nominal capacitance of
120 pf/m. The maximum external diameter of the cable must not exceed 5mm (1/5 inch).
The maximum distance between the URI and the Prox Plus 125 reader with this cable is
200m (650ft).
Note: You need a special cable terminating tool to connect the building cabling to
the Prox Plus 125. The tool has a head (Part No. C861145) and handle (Part
No. C861115).
2 Part Number 3E1086 R2
September 2002
Mounting Distance Between Proximity Readers
The distance between any 2 proximity readers must be greater than 200mm in all
directions.
Please note that 200mm in all directions includes the distance through walls.
200mm
Proximity
Reader
Proximity
Reader
Wall
Less than
200mm
thick
Part Number 3E1086 R2 3
September 2002
Mounting
Note: The Prox Plus 125 reader has been designed to metric specifications therefore
any imperial measurements provided are approximate only.
The Prox Plus 125 reader is designed to be mounted on any solid flat surface including
metal surfaces.
The recommended mounting height for the Prox Plus 125 reader is 1100mm from floor
level to the centre of the reader unit. However this may vary in some countries and you
should check local regulations for variations to this height.
Note: The grommet through which the cables feed into the base of the Prox Plus 125
reader helps to keep the unit waterproof.
Drill a 20mm (3/4 inch) diameter hole for the base extrusion through or into the mounting
surface to a minimum depth of 40mm (11/2 inch).
Run the building cabling through the base and grommet.
Fit the base to the 20mm (3/4 inch) hole and secure it to the mounting surface using the
four fixing screws.
Fit the screw caps over each fixing screw. The screw caps prevent water from entering the
reader via the fixing holes. The caps must be installed for the Prox Plus 125 reader to
comply with the environmental specification.
Note: It is very important that the base of the reader is flush with and tight against
the mounting surface. If you are mounting the Prox Plus 125 reader on a
rough surface you should make the surface as smooth as possible under the
reader and up to 25mm (1 inch) around the reader.
4 Part Number 3E1086 R2
September 2002