Appendix A • RS-232 Programmer’s Guide

Selecting Inputs Using Delimiters

When selecting inputs to the projector, or display (Dsp) and/or the System 4xi switcher (Sw), audio and video can be switched together (follow) or separately (breakaway). An input is selected by its ASCII number, followed by a delimiter character. The delimiter ends the command and also determines which inputs (audio/video) are affected. System 4xi delimiters are listed and explained below. There are four delimiters that affect the

System 4xi. They are:

!Affects Audio & Video (Aud/Vid) for the switcher (Sw) and affects only video for the projector (Dsp/Sw) @ Affects Audio and Video (Aud/Vid) for switcher only (Sw)

$ Affects Audio only (Aud) for the switcher (Sw)

&Affects Video only (Vid) for both projector and switcher (Dsp/Sw)

 

Examples:

Aud/Vid

Dsp/Sw

ASCII

Hex

Response

Result Description

 

 

 

 

 

 

 

 

 

Select Input 2

Aud,Vid

*Dsp,Sw

2!

32,21

¿C2¿

Channel 2 selected

 

Select Input 16

Aud,Vid

*Dsp,Sw

16!

31,36,21

¿C16¿

Channel16 selected

 

 

 

 

 

 

 

 

 

Select Input 2

Aud,Vid

*Sw

2@

32,4Ø

¿C2¿

Channel 2 selected

 

Select Input 16

Aud,Vid

*Sw

16@

31,36,4Ø

¿C16¿

Channel 16 selected

 

 

 

 

 

 

 

 

 

Select Input 2

Aud

*Sw

2$

32,24

¿A2¿

Audio Ch 2 selected

 

Select Input 16

Aud

*Sw

16$

31,36,24

¿A16¿

Audio Ch 16 selected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select Input 3

Vid

Dsp,Sw

3&

33,26

¿V3¿

Video Ch 3 selected

 

Select Input 15

Vid

Dsp,Sw

15&

31,35,26

¿V15¿

Video Ch 15 selected

 

 

 

 

 

 

 

 

* Audio switching affects only the System 4xi and not the display device.

A-7

Extron • System 4xi Switcher Series • User’s Manual

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Extron electronic 4LDXI, 4LQXI Selecting Inputs Using Delimiters, Examples Aud/Vid Dsp/Sw, Hex Response Result Description