Communications wiring
WSHP Open v3
CARRIER CORPORATION ©2021
Integration Guide
All rights reserved
8
Baud DIP switch settings
Baud rate
2
1
9,600 bps
Off
Off
19.2 kbps
On
Off
38.4 kbps
Off
On
76.8 kbps
On
On
4
Set the remaining DIP switches as follows:
BACnet MS/TP DIP switch settings
8
7
6
5
4
3
Off
Off
Off
Off
On
Off
The following example shows the DIP switches set for 76.8k (Carrier default), and BACnet MS/TP.
5
Connect the BACnet MS/TP 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.
6
Turn
on
the WSHP Open's power.
Содержание WSHP Open v3
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