Extron electronic 3200s manual Host to Switcher Communications, Command/Response Table

Host to Switcher Communications

The Matrix 6400 Audio Switcher accepts both Simple Instruction Set and Advanced Instruction Set Commands through the RS-232/RS-422 port. Simple Instruction Set (SIS) commands may consist of one or more characters per command field and do not require any special characters to begin or end the command character sequence. Switcher responses to SIS commands all end with a carriage return and a line feed (CR/LF). An Advanced Instruction Set (AIS) command field begins with an Escape character and ends with a carriage return, line feed is optional (the Switcher Response to an AIS command always ends with a CR/LF).

When the Matrix 6400 Audio Switcher receives a command (SIS or AIS) and determines that it is valid, it will execute the command and send a response back to the controlling (Host) device. If the Matrix 6400 Audio Switcher is unable to execute the command because it is invalid or contains invalid parameters, it will return an error response to the Host. The error response is coded to help identify the cause of the error. Error code responses are defined on Page 4-9.

When a Matrix 6400 Audio Switcher local event takes place, such as a Front Panel operation, the switcher responds by sending a message to the Host. These switcher initiated messages are listed on Page 4-9. The switcher does not expect a response from the host, but, for example, the host program may want to request new status.

Command/Response Table

The Command/Response Table begins on the following page. Lower case characters are acceptable in the command field only where indicated. Symbols are used throughout the table to represent variables in the Command/Response fields. Symbol definitions are shown at the beginning of the table as is an ASCII to Hexadecimal (HEX) conversion table. Error Response codes and switcher generated Unsolicited Responses are shown at the end of the table. Command and/or Response examples are shown throughout the table. Name fields are 12 alphanumeric characters 0 - 9, A - Z (upper and lower case) including “+/-:=” and space.

Commands are split into two groups which are identified by page headers. The two groups are “Simple Instruction Set Commands” and “Advanced Instruction Set and Simple Instruction Set Commands”.

Input	Presentation
13	Room

	C
	Input
Video Conference	11
Room

Input	Input	12
	7-9
10
	A
	B

Input

14

Training

Room

D

Media

Room

		Player
		VCR1
		Player
		DVD2
		Player
		VCR3
		DSS
DeviceLaser			RED
OMController			REE
C			G
C	PAQ		N
OM	PC		BLUE
CO PAQ		H
MPA PC		O
QP		RIZO
C		VE	NTAL
		RT	Sync
		ICAL
		A	Sync
		UDIO

Input

1-6

Figure 4-2.A Host computer controls Matrix 3200/6400 System

Matrix 3200/6400 Series • Programmer’s Guide 4-3