User Manual

2 Part number 3E0054 R2
March 2003
Before you begin
Shipment contents
Unpack the Cardax FT IDT (125 Series) and check the shipment contains the
following items:
• 1 x Cardax FT IDT (125 Series) base
• 1 x Cardax FT IDT (125 Series) facia (pre-assembled with Processor,
Display and Keypad PCBs)
• 1 x Interconnect PCB
• 1 x Cardax FT Intelligent Door Terminal (125 Series) Installation Note
(part number 3E0054)
• 1 x cable assembly
• 4 x self tapper pan-head fixing screws
• 4 x screw caps
Note: Once the reader is installed, you require a special tool to open the
Cardax FT IDT (125 Series). Part number C41608 is a kit containing three
delatching tools, of which one is the tool required to remove the cover off the
Cardax FT IDT (125 Series).
Power Supply Requirements
The Cardax FT IDT (125 Series) requires a well regulated power source with
good output filtering. Any "noise" on the power supply may reduce card read
range.
Power required for the Cardax FT IDT (125 Series) is 13.6 V DC (± 15%) with
current at 300mA per reader. This means that the voltage at the reader
terminals, with the reader operating, should be at least 11.6 V DC. It is
recommended you target a minimum of 12 V DC.
Cabling
Prior to installing a Cardax FT IDT (125 Series), the building cabling (RS485
and power) must have been carried out. For further cabling details, refer to
Chapter 2 of the "Cardax FT Installation manual".
To avoid voltage drop in cable runs, it is recommended to run separate DC
power and communications cabling. However, a single cable run is possible as
long as the voltage and current do not drop below the required levels.
EMI Cable Shields
To comply with CE, C-Tick and FCC requirements, and improve noise
suppression, an EMI Cable Shield (ferrite core) should be applied to the cable,
with three turns of the cable running through it. Position the EMI Cable Shield
as close to the entry point of the IDT as possible.