Audio Authority 1372A user manual Switcher Operation via RS-232 Machine Control, Pin Definitions

5.3 Switcher Operation via RS-232 Machine Control

The 1372 and 1374 HDMI Switchers may be operated using RS-232 protocols. The technical information needed is provided in the two charts below. A system using RS-232 control should be wired and programmed by a qualified custom integrator.

Pin Definitions

HDMI Switcher

PIN Definition

1NC

2Tx

3Rx

4NC

5GND

6NC

7NC

8NC

9 NC

Control Unit

PIN Definition

1NC

2Rx

3Tx

4NC

5GND

6NC

7NC

8NC

9 NC

5.2.1 RS-232 Commands

Command	Action
“I” + “1”	Port 1 On
“I” + “2”	Port 2 On
“I” + “3”	Port 3 On
“I” + “4”	Port 4 On
“S” + “1”	Enable Signal Enhance
“S” + “0”	Disable Signal Enhance
“P” + “1”	Power On
“P” + “0”	Power Off

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