Extron electronic 4LDXI, 4LQXI manual Request System Configuration CMD12 3Ch4, ESC, CMD12, EOT

Appendix A • RS-232 Programmer’s Guide

Request System Configuration - CMD12 (3Ch)4

Request the System 4xi Configuration.

Format:

ESC, CMD12, EOT

Response:

ESC, CMD12, ERC, LD Sync, RGB Delay, Aud Mute, Status 1, LDxi Misc, reserved, EOT

Where: ESC, CMD12 = 1Bh, 3Ch
LD Sync	81h = Composite Sync with no serration pulses
	82h	= Sync negative (horizontal & vertical)
	83h	= Composite Sync with serration pulses
	84h	= 6Sync positive (horizontal & vertical)
	85h	= 6Sync positive horizontal, negative vertical
	86h	= 6Sync negative horizontal, positive vertical
RGB Delay	80h - 8Ah = RGB Delay in 0.5 second steps
		(values range from 0 to 5 seconds)
Aud Mute	80h = Audio is not Muted
	81h	= Audio is Muted

Status 1	80h - 83h (See table below.)
	Bit #	7·6·5·4·3·2	1	0
Function:			Sys Power	Model
Power is Off		1·0·0·0·0·0	0	x
Power is On		1·0·0·0·0·0	1	x
Sys 4C		1·0·0·0·0·0	x	1
Sys 4LD, 4LDex, 4LQex		1·0·0·0·0·1	x	0
Sys 4LDxi, 4LQxi		1·0·0·0·0·1	x	0

LDxi Misc6	80h	- AAh (See table.)
		Bit #s	76	54	32	10
Function:			–	Demo	Freeze VGA
Demo mode On			10	01	xx	xx
Demo mode Off			10	10	xx	xx
Freeze On			10	xx	01	xx
Freeze Off			10	xx	10	xx
Not VGA resolution			10	xx	xx	01
Force VGA resolution			10	xx	xx	10
reserved	80h	= reserved
EOT	04h	= End Of transmission

4.This command is only available in System 4xi units with the following firmware revision levels, or higher: System 4LDxi – revision 3.0 System 4LQxi – revision 4.0

6.Only available on System 4LDxi and System 4LQxi

Example: (Request System Configuration) 1Bh, 3Ch, 04h

Response:

1Bh, 3Ch, 80h, 83h, 80h, 81h, 82h, A9h, 80h, 04h

Says: LD Sync = Composite with serration pulses, RGB Delay = none, Audio is Muted, Model = System 4LDxi , 4LQxi , Switcher Power = On, Demo Mode = Off, Freeze = Off and VGA Resolution is not forced.

A-15 Extron • System 4xi Switcher Series • User’s Manual