Programmer’s Guide for the Telnet and Web Browser

Using the Command/Response Table

The following are either Telnet (port 23) or Web browser (port 80) commands. There are some minor differences when implementing these commands via Telnet or via URL encoding using a Web browser. All commands listed below will work using either connection method, but due to some limitations of the Web browser, the encapsulation characters are modified to make sure that the Web browser will properly handle them. All examples in the command/response table show the proper implementation in a Telnet or Web browser session.

NOTE: For Web browsers, all non-alphanumeric characters must be represented as their

hex equivalent such as %xx where xx equals the two character representation of

the hex byte that needs to be sent (for example, a comma would be represented as %2C).

Telnet

Web Browser

Escape (Hex 1B)

W [must not be encoded]

Carriage Return (Hex 0D)

Pipe Character ( ) [must not be encoded]

When using these commands 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 (for example, http://192.168.100.10/myform.htm).

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 section).

NOTE: With Telnet you can use either the “Escape” character or the “W” character,

and the carriage return or the pipe character. With the Web browser, you are required to use the “W” character and the pipe character.

In either method {Data} signifies that data will be directed to a specified port and must be encoded if it is non-alphanumeric.

The table on pages 28 through 32 lists the commands that the IPL T CR48 recognizes as valid, the responses that are returned to the host, a description of the function of each command, and the results of executing the command.

NOTE: Upper and lower case text can be used interchangeably except where noted.

IPL T CR48 • Communication and Control

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Extron electronic IPL T CR48 manual Programmer’s Guide for the Telnet and Web Browser, Using the Command/Response Table
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IPL T CR48 specifications

The Extron IPL T CR48 is a cutting-edge technology solution designed for modern audiovisual environments. As a compact, high-performance control processor, it is specifically tailored for managing and automating AV systems in various settings, including classrooms, conference rooms, and other collaborative spaces. The IPL T CR48 seamlessly integrates with a wide range of Extron products and third-party devices, making it a versatile choice for any AV installation.

One of the main features of the IPL T CR48 is its powerful control capabilities. It supports up to 48 programmable control ports, which allow users to manage multiple displays, projectors, and other audiovisual equipment effortlessly. This extensive control range ensures that every device in the AV system is easily operable from a single interface, streamlining the user experience.

In addition to its impressive control capabilities, the IPL T CR48 integrates advanced IPLink technology. This unique feature allows for remote control and monitoring of AV systems over an IP network, offering system administrators the flexibility to manage equipment from virtually anywhere. This capability is particularly valuable in large installations, where managing multiple systems simultaneously can be complex and time-consuming.

The IPL T CR48 also boasts a user-friendly interface, thanks to its compatibility with Extron's GlobalViewer Enterprise software. This robust software provides users with a web-based platform for real-time monitoring and management of their AV systems. It enables users to configure, schedule, and control their AV devices, ensuring a smooth operation throughout all events and presentations.

Moreover, the IPL T CR48 is engineered with enhanced security features, including customizable user access levels, ensuring that only authorized personnel can control sensitive equipment. This aspect is crucial for educational and corporate environments, where security and privacy are paramount.

Compact and reliable, the IPL T CR48 excels in both functionality and performance. Its durable design and advanced technologies make it a preferred choice among AV professionals looking to improve the efficiency of their installations. Overall, the Extron IPL T CR48 represents a significant advancement in control processing technology, providing a comprehensive solution for diverse audiovisual applications today.
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