User's Manual

4 Part number 3B3957 R8
June 2005
Fastening the base to the mounting surface
Note:
It is important that the base of the IDT is flush with, and tight against, the
mounting surface. If you are mounting the IDT on a rough surface, make the
surface as smooth as possible under the IDT and up to 25 mm (1 inch) around
the IDT.
1. Mark the position where the IDT is to be mounted.
2. Drill a 20 mm (¾ inch) diameter hole through the mounting surface for the
base extrusion.
3. Optionally, drill four pilot holes for the four fixing screws.
Note:
Six possible mounting holes are provided in the base. Ensure the four you
chose will hold the IDT securely.
4. Pass the building cable through the hole in the base extrusion.
5. Press the base extrusion into the 20 mm hole. Use the four pan-head self-
tapping screws to fasten the base to the mounting surface.
6. Press a plastic cap into the socket over each screw head. The plastic caps
prevent water from entering the IDT through the fixing holes.
Joining the cable
1. Join the connector tail cable to the building cable.
Red: DC supply positive
White: RS485 communications cable
Blue: RS485 communications cable
Black: DC supply negative (0 V, GND)
Note:
The Cardax FT system does not require the RS485 communications cable
to be polarised. The DC supply must be connected to the correct terminals.
2. Press the connector into the grommet.
3. Press the connector onto the mating plug on the Interconnect PCB.
4. Push the Interconnect PCB back so that the connector and grommet slide
into the base extrusion. Press the Interconnect PCB until it locks under the
retaining clips.