Once you are logged in, the ISS returns either Login Administrator or Login User. No further prompts are displayed until you break or disconnect the connection to the ISS.

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 Esc 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 ISS intact.

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

Local echo

Once connected to the ISS, by default Telnet does not display your keystrokes on the screen. SIS commands are typed in blindly and 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 response 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 will see a display such as a*d*m*i*n*, where admin is the keyed in password and ***** is the masked response.

Local echo can be turned off by typing unset local_echo and then pressing [Enter] at the Telnet prompt. If you are connected to the ISS 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 ISS 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 will 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 press [Enter] at the Telnet prompt. If you are connected to the ISS, access the Telnet prompt beforehand by typing the Escape character ( Ctrl + ] ).

Integration Seamless Switcher Ethernet Connection

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Extron electronic ISS 408 manual Escape character and Esc key, Local echo, Set carriage return-line feed, Close, Help, Quit

ISS 408, ISS 108 specifications

Extron Electronics is renowned for its contributions to the audiovisual industry, providing high-performance devices that meet the demands of professional environments. Two prominent products in their lineup are the ISS 108 and ISS 408 image scaling switchers, which are designed to enhance the management and quality of video signals in various applications.

The Extron ISS 108 is an 8x1 image scaling switcher that allows users to seamlessly switch between multiple video sources while ensuring high image quality. One of its main features is the ability to support a variety of video formats, including resolutions up to 4K. This versatility is crucial for applications in education, corporate settings, and events where different video sources may be required.

In terms of technology, the ISS 108 is equipped with advanced image scaling capabilities that improve the visual quality of the content being displayed. The device utilizes Extron's patented Vector 4K scaling technology, which enhances the clarity and detail of the images while maintaining the integrity of the source material. This technology is invaluable in environments where every detail matters, and it ensures that presentations are delivered at their best quality.

The ISS 408, on the other hand, takes the capabilities of the ISS 108 and elevates them further by offering 4x1 switching capabilities. This enables users to connect up to four video sources, giving them more flexibility in content management. The ISS 408 also supports 4K video resolutions, further solidifying Extron's commitment to delivering high-quality solutions.

Both models are designed with user-friendly interfaces, allowing for easy operation and integration into existing AV systems. They offer extensive control options, including RS-232 and Ethernet, enabling users to incorporate them into automation systems and control environments efficiently.

Another important characteristic of the ISS series is their built-in security features, such as password protection and lockout modes, which are essential for maintaining the integrity of sensitive content being delivered in corporate or educational settings.

In summary, the Extron ISS 108 and ISS 408 provide powerful solutions for image scaling and video switching. With advanced technologies like Vector 4K scaling, robust connectivity options, and intuitive control interfaces, these devices stand out as essential tools for any professional audiovisual application. Their focus on quality, flexibility, and security makes them ideal choices for enhancing video presentations in various environments.