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Simple control port commands, Telnet and web-browser accessible – Extron Electronics DMP 128 User Guide User Manual

Page 140

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simple control Port commands - telnet and web-browser accessible

Upper and lower case text can be used interchangeably except where noted. Port 23
is default for Telnet. Port 80 is default for web browsers. They both can be mapped to
different ports.
There are minor differences when implementing these commands via Telnet or via URL
encoding using a web browser. All commands listed will work using either connection
method but due to some limitations of web browsers, the encapsulation characters must
be modified to be certain the web browser will properly handle them. All examples are
shown in a proper implementation of a Telnet or web browser session.

notE: When using web browsers, some non-alpha numeric characters must

be represented as their hex equivalent such as %xx where xx equal the two
character representation of the hex byte that needs to be sent (a comma ‘,’
would be represented as %2C). Characters such as ‘%’ (percent), ’+’ (plus) and ‘ ‘

(space) should also be encoded in Hex.

telnet

web Browser

Escape (Hex 1B)

W [must

not be encoded]

Carriage Return (Hex

0D

)

Pipe Character (|) [must not be encoded]

When describing the use of SIS commands via a web browser, the [URL] reference is
used to shorten the examples. [URL] would be the full URL of the control interface and
web page reference including all path information
(

http://192.168.254.254/mypage.HTmL

).

To send commands using a Web browser, prefix them with the full URL followed by
?cmd= (

http://192.168.254.254/mypage.html?cmd=WSF

>

).

Although the DMP 128 uses the same structure for SIS commands, there are two
variations. One is the global command structure noted above and documented in the

Command and Response Tables

that immediately follows.

The second set of tables, “DSP SIS commands” uses the command structure outline
beginning with

DSP SIS Commands

on page 141.

Generally the basic SIS commands will be used for global configuration such as setting IP
addresses, date/time, while the DSP SIS commands address audio processing functions.

DMP 128 • SIS Programming and Control

134