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Operation
There are two ways to control the horizontal shifting feature
of an RGB 580xi remote interface: by using the AAP horizontal
shift (H. shift) control, or by using an RS-232 remote control
device.
RS-232 Programmer's Guide
The interface can be remotely controlled via a host computer
attached to the rear panel's 3-pole captive screw RS-232
connector. 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 rear panel's RS-232 3-pole female connector has the
following pin assignments:
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 =
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.
RGB 580xi • Remote Control
3-2
RGB580xi RS-232 pinout table.eps
Pin
RS-232 function
1
Tx
2
Rx
3
Gnd
Description
Transmit data
Receive data
Signal ground
), which signals the end of
RS-232
Tx Rx
Captive Screw Pin Locations
Female
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