User Manual Control Units
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Page 20 of 44
3.7.4. RS-485 One-directional Output Connection
Important notes
1. Maximum baud rate is 9 600 Bd
2. IR/Serial channel must be set to no-carrier mode using command CarrierDisable.
A device controlled via RS-485 can be connected as described below.
IR 1 - IR 4 RS-485 Port Description
Pin 1 B- Data - from Assistant or Assistant-S
Pin 2 A+ Data + from Assistant or Assistant-S
Signal Ground
Signal Output
Assistant or Assistant-S
IR 1 to IR 4
Controlled Device
RS-485
B-
A+
GND
1 2
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