Figure 11 - Rs485 Communication Diagram - TDSi EXcel4 User Manual

Connect to the EX series ACU's as follows:
USB Converter terminal
block
1
2
3
4
5
6

Figure 11 - RS485 communication diagram

Rs485 4 WIRE
Ex Series ACU
Connector
4
3
1
2
No Connection
No Connection
EXcel4 Controller
Continuation of daisy
chain to other EX series
controllers
4
3
1
2
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