Installing the UPC Open
UPC Open
Carrier Proprietary and Confidential
CARRIER CORPORATION ©2017
Installation and Integration Guide
All rights reserved
6
Wiring specifications for BACnet MS/TP and ARC156
Cable:
22 AWG or 24 AWG, low-capacitance, twisted, stranded, shielded copper wire
Maximum length:
2000 feet (610 meters)
WARNING
Do not apply line voltage (mains voltage) to the controller's ports and terminals.
To wire the controller to the BACnet network
1
Pull the screw terminal connector from the controller's power terminals labeled
Gnd
and
Hot
.
2
Check the communications wiring for shorts and grounds.
3
Connect the communications wiring to the controller’s screw terminals labeled
Net +
,
Net -
, and
Shield
.
NOTE
Use the same polarity throughout the network segment.
4
Set the communication type and baud rate.
For...
Set DIP switches 1 and 2
to...
DIP switch 3
Set DIP switch 4
to...
Set DIP switches 5 through 8 to...
MS/TP (m)
The appropriate baud
rate. See the
MS/TP
Baud
diagram on the
controller.
N/A
On
Off/Off/Off/Off
ARC156
N/A. Baud rate will be
156 kbps regardless of
the DIP switch settings.
N/A
Off
N/A
NOTE
Use the same baud rate for all controllers on the network segment.
5
For MS/TP, verify that the EIA-485 jumpers are set to EIA-485 and 2w.
6
Wire the controllers on a BACnet MS/TP or BACnet ARC156 network segment in a daisy-chain configuration.
7
If the UPC Open is at either end of a network segment, connect a BT485 to the UPC Open.
8
Insert the power screw terminal connector into the UPC Open's power terminals.
9
Verify communication with the network by viewing a Module Status report in the i-Vu® interface.
