Extron electronic DVS 304 ASCII to hexadecimal character conversion table, Copyright information

Telnet	Web Browser
Escape (Hex 1B)	W [must not be encoded]
Carriage Return (Hex 0D)	Pipe Character ( )
	[must not be encoded]

When SIS commands are used through a Web browser, the URL reference is used below to shorten the examples. This would in practice be the full URL of the control interface and Web page reference including all path information.

(e.g., http://192.168.254.254/index.html)

To send any of the commands using a Web browser you need to prefix them with the full URL followed by ?cmd=. See URL Encoding later in this chapter.

NWith Telnet you can use either the Escape commands or the W commands, and the carriage return or the pipe ( ) character. With the Web browser you are required to use the W commands and the pipe character.

In either method {Data} = Data is directed to a specified port and must be encoded if non-alphanumeric.

The Command/response table for Simple Instruction Set (SIS) commands later in this chapter lists the commands that the DVS 304 scaler recognizes as valid, the responses that are returned to the host, a description of the command’s function or the results of executing the command, and an example of each command in ASCII (Telnet) and URL Encoded (Web).

NUpper and lower case text can be used interchangeably except where noted.

ASCII to HEX Conversion Table

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ASCII to hexadecimal character conversion table

Copyright information

] © Copyright 2008, Extron Electronics, DVS 304 series, Vx.xx Thur, 18 Feb 2008 11:27:33 ]

The copyright message is displayed upon connecting to IP Link product via TCP/IP or Telnet. Vx.xx is the firmware version number. The current date and time are displayed. This is followed by a Password prompt.

Password information

The ] Password: prompt requires a password (administrator level or user level) followed by a carriage return. The prompt is repeated if the correct password is not entered.

If correct password is entered, the unit responds with ] Login Administrator ] or ] Login User ], depending on password entered. If passwords are the same for both administrator and user, the unit defaults to administrator privileges.

DVS 304 • Serial Communication 3-3