Carrier WSHP Open v3 Integration Manual page 16

Communications wiring
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.
S W2
S W1 M S B
0
10's
Set the remaining DIP switches as follows:
3
BACnet ARC156 DIP switch settings
8
Off
The following example shows the DIP switches set for BACnet ARC156.
Connect the BACnet ARC156 network to the controller's J19 Network Comm port. Connect to Net+, Net-, and
4
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.
Turn on the WSHP Open's power.
5
WSHP Open v3
Integration Guide
L SB
0
1's
7 6
Off Off
5 4 3
Off N/A N/A
12
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