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AVSW-HDMI2X2
Chapter 4: RS-232 Serial Interface
4. RS-232 Serial Interface
4.1 Pin Definitions
Table 4-1. RS-232 pin definitions.
AVSW-HDMI Switch
Remote Control Console
Pin
Definition
Pin
Definition
1
Not connected
1
Not connected
2
Tx
2
Rx
3
Rx
3
Tx
4
Not connected
4
Not connected
5
GND
5
GND
6
Not connected
6
Not connected
7
Not connected
7
Not connected
8
Not connected
8
Not connected
9
Not connected
9
Not connected
4.2 RS-232 Serial Control Port
You can control the HDMI Matrix Switches via the RS-232 serial control port for
interfacing to a PC. The serial communication parameters are: 9600 baud, 8 bits,
no parity, and one stop bit. This is often referred to as 9600 8N1.
When the switch recognizes a complete command, it will perform the requested
action—no deliminater charcter is required. The unit does not send out a message
when a value is changed from the front panel or via IR control. If you need to
control the unit via the front panel in addition to the RS-232 control, you should
regularly poll the unit status to ensure that the control system accurately reflects
the current settings or similar third-party control system.
