Communications wiring
WSHP Open v3
CARRIER CORPORATION ©2021
Integration Guide
All rights reserved
12
NOTE
The rotary switches also determine the BACnet device instance of the controller on the BACnet
network. The BACnet device instance is automatically generated
based on the scheme 16101xx, where “16”
is the BACnet vendor ID for Carrier Corporation, and xx equals the rotary switch address.
EXAMPLE
To set the controller’s MAC address to 01, point the arrow on the
MSB
(
SW1
) switch to 0 and the
arrow on the
LSB
(
SW2
) switch to 1. Internally, the BACnet device instance is automatically generated as
1610101.
10's
1's
1
3
45
2
7
8
9
6
0
1
3
45
2
7
8
9
6
0
SW1
SW2
M SB
L SB
3
Set the remaining DIP switches as follows:
BACnet ARC156 DIP switch settings
8
7
6
5
4
3
Off
Off
Off
Off
N/A
N/A
The following example shows the DIP switches set for BACnet ARC156.
4
Connect the BACnet ARC156 network to the controller's
J19
Network Comm
port. Connect to
Net+
,
Net-
, and
SHLD
.
Wire specifications
○
A dedicated 22 AWG shielded twisted pair wire (EIA 485)
○
Maximum wire length 2000 feet (610 meters) or 32 nodes
○
Devices should be daisy-chained and not star-wired
○
Attach the drain/shield wire to both ends of the network segment and through every controller
NOTE
Use the same polarity throughout the network segment.
5
Turn
on
the WSHP Open's power.