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 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:

60-641-nn

The switcher sends the copyright message when it first powers on. Vn.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.