User guide

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 8 or Connecting to the USB Port on page 9 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 change

has occurred. No response is required from the host.

The switcher sends the following message when it is first powered on:

60-841-nn

20nn

is the year in which the copyright for the firmware was registered, Vn.nn is the

firmware version number, and 60-841-nn is the switcher part number.

NOTE: This message is displayed at power-up only with an RS-232 connection.