Runco CR-26HD, CR-32HDi manual RS-232 Connection and Port Configuration, Serial Command Syntax

6. Serial Communications

To interface the Crystal Series LCD Display with a home theater automation/control system or a PC running terminal emulation software, connect it to your control system or PC as shown in Figure 3-8.

Configure the RS-232 controller or PC serial port as follows: no parity, 8 data bits, 1 stop bit and no flow control. Set the baud rate to match that of the Crystal Series LCD Display RS-232 port; the default baud rate is 115200.

6.1

RS-232 Connection and Port Configuration

Table 6-1lists the RS-232 command set. All commands are in ASCII format. A carriage return is not required after a command.

When you send a valid command, the Crystal Series LCD Display executes it and acknowledges it with a right-bracket character (]) followed by the four-digit numeric code you sent; for example, ]0002. When you send an invalid command, the Crystal Series LCD Display ignores it and returns -N/Ainstead of the four-digit code.

Table 6-1. Serial Commands

Command			Description
[	S3A	0###	Set audio volume to ### (=000-100)
Example: [S3A0075 sets volume to 75
[	+3A		Audio volume up
[	-3A		Audio volume down
[	S4A	000#	Main input selection
			0=TV
			1=Input1
			2=Input2
			3=Input3
			5=DVI
			6=RGB
Example:	[S4A0006 selects RGB
[	S4E	000#	Aspect ratio selection
			0=Standard (4x3)
			1=VirtualWide
			2=Letterbox
			3=Anamorphic
Example:	[S4E0002 selects Letterbox
[	S4F	0101	Select Composite Video for Input1
		0102	Select S-Video for Input1
		0201	Select Composite Video for Input2
		0202	Select S-Video for Input2

6.2

Serial Command Syntax

Runco CR-26HD/CR-32HDi Owner’s Operating Manual 49