Honeywell IQ8Control C Installation Instruction page 42

Fire Alarm Control Panel IQ8Control C/M
RS485 interface
An external device, such as an LCD display panel, can be connected to the A/B terminals via the RS485
interface.
1
2
3
A
RS485
1
-
+
A
external device
Fig. 36: RS485 interface
RS 485-1
A/B Connection of the interface cable – total length max. 1000m
X32 closed
open
RS 485-2
A/B
Do not alter position of the jumpers!
X33/35
Do not connect terminals!
X34
42
X33 X35
1 1
2 2
3 3
X34
X32
1
2
3
B A B
RS485
2
B
RS 485 termination resistance activated
RS 485 termination not activated
•
The RS485 BUS must be connected with an
EOL resistor at both ends of the loop.
•
If the FACP incl. basic module is the last
device on a loop end, the integrated EOL
resistor can be activated with the X32 jumper.
FB 798951.GB0 / 01.09