Escape character and Esc key

When Telnet is first started, the utility advises that the Escape character is ‘Ctrl+]’. Many SIS commands include the keyboard E key. Consequently, some confusion may exist between the Escape character and the Escape key.

The Telnet escape character is a key combination, the Ctrl key and the ] key pressed simultaneously, that returns you to the Telnet prompt while leaving the connection to the switcher intact.

The Escape key is the E key on the computer keyboard.

Local echo

Once connected to the switcher, by default, Telnet does not display your keystrokes on the screen. SIS commands are typed in blindly and only the SIS responses are displayed on the screen. To command Telnet to show keystrokes, at the Telnet prompt, type set local_echo and then press [Enter] before you open the connection to the switcher.

With local echo turned on, keystrokes and the switcher’s responses are displayed on the same line. For example: 1*1!In1 Out1 All, where 1*1! is the SIS command and In1 Out1 All is the response.

With local echo turned on, all keystrokes are displayed, even those that should be masked, such as the password entry. For example, when entering a password with local echo turned on, you see a display such as a*d*m*i*n*, where admin is the keyed in password and ***** is the masked response.

You can turn off local echo by typing unset local_echo and then pressing [Enter] at the Telnet prompt. If you are connected to the switcher and need to access the Telnet prompt to turn local echo off, type the Escape character ( Ctrl + ] ).

Set carriage return-line feed

Unless commanded otherwise, Telnet transmits a line feed character only (no carriage return) to the connected switcher when you press the Enter key. This is the correct setting for SIS communication with the switcher. The Telnet set crlf command forces Telnet to transmit carriage return and line feed characters when Enter is pressed, but if crlf is set, the SIS link with the switcher does not function properly.

Close

To close the link to the switcher, access the Telnet prompt by typing the Escape character ( Ctrl + ] ). At the Telnet prompt, type close and then press [Enter].

Help

For Telnet command definitions, at the Telnet prompt, type ? and then press [Enter].

Quit

Exit the Telnet utility by typing quit and then pressing [Enter] at the Telnet prompt. If you are connected to the switcher, access the Telnet prompt by typing the Escape character ( Ctrl + ] ).

PRELIMINARY

MPX Plus 866 A Media Presentation Matrix Switcher • Ethernet Connection

A-5

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Extron electronic MPX Plus 866 A Escape character and Esc key, Local echo, Set carriage return-line feed, Close, Help
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MPX Plus 866 A specifications

The Extron MPX Plus 866 A is a powerful multimedia presentation switcher designed to meet the needs of modern AV environments. This advanced device simplifies the management of multiple audio and video sources, providing seamless control and connectivity in various settings such as conference rooms, classrooms, and auditoriums.

One of the key features of the MPX Plus 866 A is its ability to handle a wide range of video formats. It supports both HDMI and analog video, allowing for compatibility with different devices. This versatility ensures users can connect laptops, projectors, and other AV equipment without any issues, making it ideal for mixed-use environments where various technologies coexist.

With an 8x8 matrix design, the MPX Plus 866 A can route up to eight different input sources to eight output destinations. This feature enables users to select and switch between sources quickly and efficiently, enhancing the overall presentation experience. Additionally, the device incorporates Extron's high-performance scaling technology, which ensures that video signals are processed with exceptional clarity and detail, regardless of resolution.

Another noteworthy characteristic of the MPX Plus 866 A is its built-in audio capabilities. The switcher includes a comprehensive audio mixer with support for both analog and digital audio signals. This allows users to integrate and control audio sources effectively, ensuring that sound quality matches the visual experience. Furthermore, it features advanced audio processing tools, including equalization and filtering functions, to enhance audio output in any environment.

The MPX Plus 866 A also emphasizes ease of use and accessibility. Its user-friendly interface, combined with an intuitive control system, allows operators to navigate the device with minimal training. Additionally, the switcher supports various control options, including RS-232 and Ethernet, enabling integration into larger AV control systems for centralized management.

In summary, the Extron MPX Plus 866 A stands out as a versatile and reliable multimedia presentation switcher. Its extensive range of input and output options, advanced scaling and audio processing technologies, and emphasis on user-friendly design make it an exceptional choice for any professional AV installation. Whether in an educational setting or corporate environment, the MPX Plus 866 A ensures seamless connectivity and high-quality performance, meeting the demands of today’s multimedia presentations.
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