Extron Electronics SW HDMI Series User Guide - Manual (Page 25)

19 SW HDMI Series • Remote Communication and Control
Remote
Communication
and Control
This section describes remote operation of the SW HDMI switchers. Topics include:
• Using Simple Instruction Set (SIS) Commands
• Updating Firmware Using Firmware Loader
Using Simple Instruction Set (SIS) Commands
The SW HDMI can be remotely set up and controlled via Extron SIS commands that are
issued from a host computer or other device, such as a control system. SIS commands can
be issued via RS-232 from the computer serial port to the rear panel Remote port, or via
USB from the computer USB port to the front panel Config port. (See “
Wiring for RS-232
Control ” on page 7 or “ Connecting to the USB Port ” on page 8 to connect to these
ports.)
Host-to-switcher Communications
SIS commands consist of one or more characters per field. No special characters are
required to begin or end a command sequence. You can enter these commands from
your computer using a communication software program such as Extron DataViewer or
HyperTerminal. When the switcher determines that a command is valid, it executes the
command and sends a response to the host device.
Most responses from the SW HDMI to the host computer 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.
Switcher-initiated Messages
When a local event such as a front panel selection or a change in signal status takes place,
the switcher responds by sending a message to the host, indicating what selection was
entered. No response is required from the host.
The following switcher-initiated message is displayed:
(C) Copyright 20nn, Extron Electronics HDMI Switcher Series, Vn.nn,
60-641-nn
The switcher sends the copyright message when it first powers on. V n . nn is the firmware
version number; 60-641-nn is the switcher part number.
NOTE: This message is displayed only at power-up with an RS-232 connection.