Altinex 400-0026-004 Press Function, F1+HOLD, F1+F2+HOLD, RS-232 Control of the Switcher

F1+HOLD+Power ON

F2+HOLD+Power ON

MATRIX SWITCHERS

PRESS	FUNCTION
F1	Selects input
	(confirmed by “ON” LED)
F2	Selects output
	(confirmed by “ON” LED)
F1+HOLD	Connects selected input
	to selected output
F2+HOLD	Connects selected input
	to selected output
F1+F2 together	Resets selected input
(Press & Release)	and output channels
F1+F2+HOLD	Resets switcher and
(Press & Hold)	loads memory #1 setting
	after a series of beeps
F1 or F2 + HOLD	Disconnect selected
(All input LED’s OFF)	output

Initializes baud rate, input-output connections and clears memory after a series of beeps

Initializes matrix size to 16x16 and offset to 00 for input and output

Table 2. Summary of F1 and F2 functions

7.2 RS-232 CONTROL OF THE SWITCHER

The HOMERUN Matrix Switcher has many advanced remote control capabilities which are accessible through a standard RS-232 port through terminal block connectors provided on the back of the module. The actual controlling can be accomplished through a computer, control system or any other device capable of sending RS-232 commands.

The function of each pin is described on the back panel next to the connector. Each module has its own RS-232 port. However, only one port should be used to control all units, if they are attached through loop cables.

Test each module outside of the rack prior to installation to insure that you have established communication.

7.2.1 RS-232 PROTOCOL:

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

1.Square brackets “[“ & “]” are part of the command, unless they are changed through the [CODEn] 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 1.

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

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

The HOMERUN Matrix Switcher requires 50ms of processing time after each command is sent. So please keep a 50ms delay between two consecutive commands except the [RSET] command, which requires 1 second of processing time.

Example: [RSET]*, wait 1 second, * [I01O02]* wait 50ms, *[I12O09]*

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. If an invalid command is entered the [ERR] 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 programming 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.

[SETIDn]

n = level/module ID number; 0 to 9

9