Honeywell ComfortPoint Open CPO-PC400-W Manual page 24

CPO-PC400-W/CPO-PC400-UW HVAC CONTROLLER
Connection to C-Bus channel
R
T
5V_ISO
Isola on
Barrier
5V
RX TX
GND
CPO-PC400-W/CPO-PC400-UW
Fig. 15. Connection (L > 3 m) of RS485 interfaces 1, 2, or 3 (RS485 interface 1 shown) to a C-Bus
NOTES:
— Always power the CPO-PC400-W/CPO-PC400-UW with a transformer separate to the connected C-Bus mod-
ules.
— N = max. of 30 devices per port including CPO-PC400-W/CPO-PC400-UW.
EN0B-0085 IE10 R0420
110VAC/230VAC
24VAC
F1
24
L > 3m
XL500 #1 XL500 #N
R
T