Remote Communication And Control; Using Simple Instruction Set (Sis) Commands; Host-To-Switcher Communications; Switcher-Initiated Messages - Extron electronics SW HDMI Series User Manual

Remote
Communication
and Control
This section describes remote operation of the SW HDMI switchers. Topics include:
•
•

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
RS-232 Control
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,
60-841-nn
The switcher sends the copyright message when it first powers on.
in which the copyright for the firmware was registered,
number, and
NOTE: This message is displayed only at power-up with an RS-232 connection.
Using Simple Instruction Set (SIS) Commands
Updating Firmware Using Firmware Loader
on page 8 or Connecting to the USB Port
is the switcher part number.
60-841-nn
SW HDMI Series • Remote Communication and Control
Wiring for
on page 9 to connect to
is the year
20nn
is the firmware version
Vn.nn
21