Altinex MX2436RM 7.2.1 RS-232 PROTOCOL, Square brackets ““ & “” are part of the command, Example

SWITCHERS

IBM PIN No.	MX2436RM
	Contact
2	TX
3	RX
5	GND

Connection of IBM-PC 9-pin D to the MX2436RM Terminal Block

Port setting preferences for the control system or computer being used to control the switcher should be set as follows:

BAUD RATE (Bits per second)	9600
Data bits	8
Parity	None
Stop Bits	1

7.2.1 RS-232 PROTOCOL:

The RS-232 protocol for the MX2436RM Switcher uses a simple ASCII character format.

1.Square brackets “[“ & “]” are part of the command.

2.Use uppercase letters for all commands.

3.Make sure that the transmit pin of the control system is connected to the receive pin of the switcher and connection done as per Table 4.

4.Make sure that there is a delay of 50 ms between two consecutive commands.

The factory default settings is 2400 baud, 8 bits, 1 stop, and no parity. There is no software or hardware flow control implemented.

The MX2436RM Switcher requires 50ms of processing time after each command is sent. So, please keep a 50ms delay between two consecutive commands.

The RS-232 input has a 16-character buffer and will not execute any command longer than 16- characters. Any additional commands are ignored until the previous command is fully processed. After processing a valid command, an [OK] string will be returned, if requested by the feedback command.

7.2.2 PROGRAMMING COMMANDS

NOTE:

These programming commands are used for programming the switcher; they should not be used as part of a program to operate the switcher. The program setting changes done through these commands are stored in a non- volatile memory. Typically, these commands can be issued 10,000 times before the memory needs to be replaced.

1.[# SW n1 n2 n3 n4 n5 n6] - Video Switch Input

#= Switch number (no. from 1 to 9; default is 0).

n1 = Video input number (no. from 0 to 6) n2 = Break Away code (0 = On; 1 = OFF) n3 = 0, video key pressed

n4 = 0 Sync Delay. The MX2436RM Switcher is equal to zero. It is not necessary for the switch to delay.

n5 = Video Equalizer (Hexadecimal no. from

0 to F).

n6 = Audio Gain (Hexadecimal no. from 0 to F).

The [# SW n1 n2 n3 n4 n5 n6] command is the main command of the video input switcher containing all the information needed by the switcher to activate the video sources connected to the unit.

Example:

Sending the [8SW61040F] command will activate switcher module 8, Video Input number 6 and Audio Input 6 (because the breakaway code is 1). The zero (0) will notify the switcher that the video key was pressed with an interval of 4 (2 seconds). The video equalizer was set to OFF and there is a maximum volume of F. Zero

(0)= OFF and default is 8 for a normal volume or video).

9