Installation Instructions

Table Of Contents

CPO-PC400-W/CPO-PC400-UW HVAC CONTROLLER

EN0B-0085 IE10 R0420 24

Connection to C-Bus channel

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.

GND

XL500 #1

Isolaon

Barrier

5V_ISO

GND_ISO

RS485+

RS485-

110VAC/230VAC

24VAC

XL500 #N

C+

C-

C-Bus Shielding

L > 3m

C+

C-

C-Bus Shielding

FGND

24V0

24V~

CH1+

CH1-

GND1

CPO-PC400-W/CPO-PC400-UW