Honeywell ComfortPoint Open CPO-VAV2A - Page 14

CABLING
EN1B-0022 IE10 R0717 14
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.
L
90 to
120 Ohm
R T
510 Ω 510 Ω
GND-ISO
5 V-ISO
RS485+
RS485-
DIP SWITCH ON
CP-VAV/SPC/
CPO-VAV2A #1
CP-VAV/SPC/
CPO-VAV2A #N
R T
CPO-PC-6A
1
2
3 4 5
24 V
24 V-0
230 V
24 V
F1
RS485 + RS485 - FGND RS485 + RS485 - FGND