Instruction manual

RS-232 SERIAL INTERFACE
RS-232 SERIAL INTERFACE CONNECT A PC OR CONTROL SYSTEM
RS-232 SERIAL INTERFACE
Pin RS-232 Defi nition
1 -------- Not used
2 TX Transmitter
3 RX Receiver
4 -------- Not used
5 GND Ground
6 -------- Not used
7 -------- Not used
8 -------- Not used
9 -------- Not used
RS-232
The switcher can be controlled via the RS-232 serial control port to allow for interfacing to a PC or similar third party control system.
The serial communication parameters are 9600 baud, 8 bit, No Parity and 1 stop bit - this is often referred to as 9600 8N1. When the unit
recognizes a complete command it will perform the requested action - there is no delimiter character required.
The unit does not send out a message when a value is changed from the front panel or by IR control. If the unit needs to be controlled via
the front panel in addition to the RS-232 control, you should regularly poll the unit status to ensure the control system
accurately refl ects the current settings.
PROTOCOL COMMANDS
To Switch Inputs to Outputs
SBI0XO0Y - Where X is Output Number (1-4) and Y is Number (1-4)
Unit will respond with
SBUD0XOY - Where X is Input Number (1-4) and Y is Output Number (1-4)
Example : Send Input 4 to Output 3
SBI04O03 - Send
SBUD04O3 - Rcvd
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