Wiring For Communications With A Controller Network; Wiring Specifications; To Wire The Room Controller To The Controller Network - Automated Logic RC642 Technical Instructions

Wiring for communications with a controller network

The Room Controller communicates using BACnet on the following types of network
segments:
•
•
NOTE ARC156 is a unique implementation of the industry standard ARCNET. For a
summary of differences between ARCNET and ARC156, see the ARC156 Wiring Technical
Instructions (http://accounts.automatedlogic.com/download).
Wiring
For...
specifications
ARC156
and
MS/TP
1 See the ARC156 Wiring Technical Instructions (http://accounts.automatedlogic.com/download).
2 See the MS/TP Networking and Wiring Technical Instructions
(http://accounts.automatedlogic.com/download).
To wire the Room
1
Controller to the
2
controller
3
network
4
ARC156 communicating at 156 kbps
MS/TP communicating at 9600 bps, 19.2 kbps, 38.4 kbps, or 76.8 kbps
Use...
22 AWG, low-capacitance, twisted,
1
stranded, shielded copper wire
2
Remove power from the Room Controller.
Check the communications wiring for shorts and grounds.
Connect the communications wiring to the Room Controller's screw terminals labeled
Net +, Net -, and Shield.
NOTE Use the same polarity throughout the network segment.
If the Room Controller is at either end of a network segment, connect a BT485 to the
Room Controller.
0
0
1 2 3 4 5 6 7 8
O
N
10
Maximum Length
2000 feet (610 meters)