Commands And Reponses; Using The Command/Response Tables - Extron electronics System 5 IP Series User Manual

SIS ™ Programming and Control, cont'd

Commands and Reponses

Using the command/response tables

The System 5 IP can be controlled via either a Telnet (port 23) connection or a Web
browser (port 80) connection. The ASCII and URL commands listed in the tables
starting on page 5-8 perform the same functions, but they are encoded differently to
accommodate the requirements of each port (Telnet or browser).
The ASCII to hexadecimal (HEX) conversion table below is for use with the
command/response tables.
ASCII to HEX Conversion Table
ASCII to Hex conversion table
The command/response tables list valid ASCII (for Telnet or RS-232) command
codes, the corresponding URL (universal resource locator) encoded (for Web
browsers) command codes, the switcher's responses to the host, and a description
of the command's function or the results of executing the command.
• Upper and lower case characters may be used interchangeably in the command
field unless otherwise specified (setting gain/attenuation, for example).
• Commands may be sent back-to-back without spaces (for example, 2!65V1Z).
• Numbers can be entered as 1, 2, or 3 digits, e.g., 8V = 08V = 008V.
• There are a few differences in how to enter the commands depending on whether
you are using Telnet or a Web browser.
• When using these commands through a Web browser, the URL reference is
• To send any of the commands using a Web browser you must prefix them with
• For control via a Web browser, all non-alphanumeric characters must be
• Some characters differ depending on the method you use to send the
5-4 System 5 IP • SIS
used to shorten the examples. "URL" refers to the full URL of the control
interface and Web page reference including all path information
(e.g., http://192.168.100.10/myform.htm).
the full URL followed by ?cmd=.
represented as the hexadecimal equivalent, %xx, where xx represents the two-
character hex byte. For example, a comma (,) would be represented as %2C.
Characters such as %, +, and the space character ( ) must be encoded as hex
bytes, or they will be misinterpreted by the switcher.
commands:
Telnet
Escape (hex 1B)
Carriage return (hex 0D)
With Telnet you can use either an "Escape" command or a "W" command, and
the carriage return or the pipe character. With the Web browser, you are
required to use a "W" command and the pipe character.
If you make adjustments (changes to volume, gain, bass, treble, etc., via the front
panel or via RS-232 or IP communication, it will take 1 minute 40 seconds
(100 seconds) for the data in the switcher's RAM to be saved to flash memory.
™
Programming and Control
•
Web browser
W [must not be hex encoded]
Pipe character ( | ) [must not be hex encoded]