RS-232 Commands and Protocol, RS-232 Cable

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KD-MSW4x2 Operating Instructions

Video and Audio Mute

Video Mute enables the user to mute the video signal (the display goes to black) at the chosen output. Activated via IR remote control [or RS-232, see the RS-232 Command List].

Activate Video & Audio Mute:	R1 ‡ output (1~2)	‡ up arrow
Deactivate Video & Audio Mute:	R1 ‡ output (1~2)	‡ down arrow

KD-MSW4x2 IR Remote Control Function Table

In addition to some of the functions described above, a complete list of all of the functions and corresponding button sequences that can be executed from the IR remote control provided with the KD-MSW4x2 are listed below:

Button Sequence			Function

“Output 1”	“1”		Output 1 = Input 1

“Output 1”	“2”		Output 1 = Input 2

“Output 1”	“3”		Output 1 = Input 3

“Output 1”	“4”		Output 1 = Input 4

“Output 2”	“1”		Output 2 = Input 1

“Output 2”	“2”		Output 2 = Input 2

“Output 2”	“3”		Output 2 = Input 3

“Output 2”	“4”		Output 2 = Input 4

“Output 1”	“U1”		Output 1 Audio Mute

“Output 1”	“U2”		Output 1 Audio Restore (unmute)

“Output 2”	“U1”		Output 2 Audio Mute

“Output 2”	“U2”		Output 2 Audio Restore (unmute)

“R1”	“Output 1”	“Up”	Output 1 Video and Audio Mute

“R1”	“Output 1”	“Down”	Output 1 Video and Audio Restore (unmute)

“R1”	“Output 2”	“Up”	Output 2 Video and Audio Mute

“R1”	“Output 2”	“Down”	Output 2 Video and Audio Restore (unmute)

“R1”	“U4”	“Up”	All Outputs Video and Audio Mute

“R1”	“U4”	“Down”	All Outputs Video and Audio Restore (unmute)

“R1”	“7”		All video outputs set to RGBHV

“R1”	“8”		All video outputs set to YPrPb

“R1”	“9”		Front buttons disabled

“R1”	“0”		Front buttons enabled

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KD-MSW4x2 Operating Instructions

RS-232 Commands and Protocol

The KD-MSW4x2 4-to-2 HDTV Matrix Switcher can also be remotely controlled via its RS-232 port by systems such as Crestron, AMX, ELAN, and Control4, utilizing industry standard commands

PROTOCOL:

›4800 Baud rate

›8 data bits

›1 Stop bit

›No parity

RS-232 Cable

Carefully insert an RS-232 cable (9-pin) to the back of the unit, and to an appropriate PC or Control System.

An RS-232 cable is not supplied with the KD-MSW4x2 unit.

The RS-232 Command List for the KD-MSW4x2 HDTV Switcher is as follows:

1.I/O switching command: CCxy

x= output position (1...2), y = input position (1...4)

2.Status command:

CCww

Note: Since both commands are of a defined length, no terminator is required

Both commands give the following response:

a)UUy1y2y

b)Y1y2y3y4 – input states (1...4)

3.Address command:

CCA<number (1~9)>

CCA9 : Selects default KD-MSW4x2 unit (non addressable)

CCA1~8 : Selects the KD-MSW4x2 unit corresponding to that predetermined numerical address

Example:

CCA5 sets the address to “5”

The user must then press “5” to select/change a different source input on that unit IR 5‡‘output 1’ ‡3 links output 1 to input 3