User's Manual

Part number 3B3957 R8 5
June 2005
When to terminate the communications cable
If this IDT is the last unit on the communications cable run, verify that the
RS485 termination link is in place. If this IDT is not the last unit on the cable
run, remove the link. The location of this link is shown in Component layout
next.
Component layout
Interconnect PCB connections
P4 P3 P2 P1
4
3
2
1
RS485 communications
13.6 V ± 15%
0 V
Setting the unit address
A maximum of 16 IDTs can be connected to one Cardax FT Controller 5000.
Each must have its own address. Usually the address is set at the time the site
is commissioned.
The address assigned to the IDT must match that set up at the Cardax FT
Command Centre server. Refer to the Cardax FT Command Centre
documentation.
1. On the PCB inside the facia, locate the Unit Address switch.