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User Manual Control Units

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3.7.3. RS-422 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-422 can be connected as described below.

IR 1 - IR 4 RS-422 Port Description

Pin 1 TX- Data - from Assistant or Assistant-S

Pin 2 TX+ Data + from Assistant or Assistant-S

Signal Ground

Signal Output

Assistant or Assistant-S

IR 1 to IR 4

Controlled Device

RS-422

RX+

RX-

TX+

TX-

1 2

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