Extron Electronics RGB 580xi User Guide - Manual (Page 20)

Remote Control
This section discusses how to connect and configure the RGB 580xi. Topics that are covered,
include:
• RS-232 Programmer Guide
• Windows ® -Based Program Control
• Contact Closure Remote Control
RS-232 Programmer Guide
The interface can be remotely controlled via a host computer attached to the 3-pole captive
screw RS-232 connector on the rear panel. A contact closure control system may also be
used by connecting a contact closure device to the front panel’s female 5-pole captive screw
connector. The protocol is 9600 baud, 1 stop bit, no parity, and no flow control.
The RS-232 control device (host) can use either the Extron
Simple Instruction Set (SIS™) commands or the graphical
control program for Windows. RS-232 control software
is included with the interface.
The RS-232 3-pole female connector on the rear panel has the following pin assignments:
Pin RS-232 function Description
1 Tx Transmit data
2 Rx Receive data
3 Gnd Signal ground
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 2001, Extron Electronics, RGB 580xi, Vx.xx
The interface displays the copyright message when it first powers on. Vx.xx is the firmware
version number.
RS-232
Tx Rx
Captive Screw Pin Locations
Female
RGB 580xi • Connection and Configuration 16