Extron electronic RGB 201 Rxi manual RemoteControl,cont’d, Simple Instruction Set Control

RemoteControl,cont’d

The interface’s rear panel Remote connector (Figure 3-1) can be connected to the serial port output of a host device, such as a computer or control system. Remote communications with the switcher are via Extron’s Simple Instruction Set or Extron’s Windows-based control program.

5	1	Pin	RS-232	Function
		1	—	—
		2	TX	Transmit data (-)
9	6	3	RX	Receive data (+)
Female		4	—	—
1	5	5	Gnd	Signal ground
		6	—	—
		7	—	—
6	9	8	—	—
Male		9	—	—

Figure 3-1 — Remote connector pinout

The RS-232 protocol of the rear panel Remote connector is 9600 baud, 1 stop bit, no parity, and no flow control.

Simple Instruction Set Control

Host-to-interface communications

SIS commands consist of one or more characters per field. No special characters are required to begin or end a command sequence. When a command is valid, the interface executes the command and sends a response to the host device. All responses from the interface to the host end with a carriage return and a line feed (CR/LF =]), which signals the end of the response character string. A string is one or more characters.

Interface-initiated messages

When a local event such as a front panel or contact closure selection or adjustment takes place, the interface sends a message to the host. No response is required from the host. The interface-initiated messages are listed here (underlined).

(C)Copyright 2002, Extron Electronics, RGB 201 Rxi, Vx.xx ] The interface displays the copyright message when it first powers on. Vx.xx is the firmware version number.

RECONFIG ]

When a change is made via a front panel control or another operation occurs that must be written to a new memory block, the interface sends the reconfiguration message. No response is required from the RS-232 host, but the host may request a new status listing via the request information command (I/i). See the command/response table in this chapter for details.

3-2 RGB 201 Rxi Universal Interface • Remote Control