Honeywell ComfortPoint Open CPO-VAV2A Installation Instructions Manual page 14

CABLING
230 V
24 V
F1
1 2
510 Ω
5 V-ISO
Connection (L > 3 m) of RS485 interfaces 1, 2, or 3 (RS485 interface 1 shown) to a BACnet Bus
NOTES
Always power the CPO-PC-6A with a transformer separate to the connected BACnet MS/TP modules.
N = max. 30 modules.
EN1B-0022 IE10 R0717
R
T
3 4 5
510 Ω
RS485+
RS485-
DIP SWITCH ON
GND-ISO
CPO-PC-6A
L
CP-VAV/SPC/ CP-VAV/SPC/
CPO-VAV2A #1 CPO-VAV2A #N
14
R
T
90 to
120 Ohm