Host-to-device Communications

The commands listed in the following tables perform the same functions, but are encoded differently to accommodate the requirements of each port (Telnet or browser).

SMD 101-initiated Messages

The SMD 101 initiates messages under specific conditions. No response is required from the host. The SMD 101-initiated messages are listed here (underlined).

© Copyright 20nn, Extron Electronics, SMD 101, Vn.nn, 60– nnnn-nn Day, DD MMM YYYY HH:MM:SS

Vn.nn is the firmware version number.

The SMD 101 sends the boot and copyright messages under the following circumstances:

•If the SMD 101 is off and an RS-232 connection is already set up (the PC is cabled to the SMD 101 and a serial communication program such as HyperTerminal is open), the connected unit sends these messages via RS-232 when first powered on.

•If the SMD 101 is on, it sends the boot and copyright messages when a Telnet connection to the SMD 101 is first opened. The day of the week, date, and time are shown when the SMD 101 is connected via Telnet, but not via RS-232. If using a Telnet connection, the copyright message, date, and time may be 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 the correct password is entered, the unit responds with ] Login Administrator ] or ] Login User ], depending on the password entered. If passwords are the same for both administrator and user, the unit will default to administrator privileges.

Using the Command and Response Tables

SIS commands consist of a string (one or more characters per command field). No special characters are required to begin or end a command sequence. When the SMD 101 determines a command is valid, it executes the command and sends a response to the host device. All responses end with a carriage return and a line feed (CR/LF = ]), signaling the end of the response character string.

When programming, certain characters are more conveniently represented by their hexadecimal rather than ASCII values. The table below shows the hexadecimal equivalent of each ASCII character:

ASCII to Hex Conversion Table

Space

•

Figure 53. ASCII to Hex Conversion Table

SMD 101 • Remote Communication and Control

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Extron electronic manual Host-to-device Communications, SMD 101-initiated Messages, Password Information
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SMD 101 specifications

Extron Electronics has long been a prominent name in the realm of audio-visual solutions, and the SMD 101 is a prime example of its innovation in display management technology. The SMD 101 is a compact and versatile AV signal processor and distribution device designed to optimize the performance of modern AV systems.

One of the standout features of the SMD 101 is its ability to handle multiple video resolutions and formats, making it compatible with a wide range of sources and displays. This flexibility ensures that users can connect various components seamlessly, irrespective of their video standards. The SMD 101 supports HDMI signals, including embedded audio, while also offering the capability to manage audio signals separately, providing a comprehensive solution for users who demand high-quality sound alongside their visual content.

Another significant characteristic of the SMD 101 is its powerful scaling technology. With advanced scaling algorithms, it ensures that all video signals are converted to optimal resolutions without sacrificing image quality. This feature is particularly beneficial in environments where content from different sources is displayed simultaneously, maintaining consistent clarity and detail across diverse display types.

Moreover, the SMD 101 integrates Extron's advanced EDID management to streamline the communication between source devices and displays. This technology helps to minimize configuration issues and ensures that the best possible video output is achieved. The device also includes sophisticated audio features, such as audio de-embedding and mixing, enabling users to tailor the audio output to fit their specific requirements.

In terms of connectivity, the SMD 101 provides multiple input and output options, allowing for extensive system integration. The device interfaces easily with various control systems, giving users the ability to automate and manage their AV environments efficiently. It also supports Extron's control system protocols, enhancing its adaptability within existing setups.

Built to last, the SMD 101 features a robust design that ensures reliability in demanding environments. Its compact form factor allows for easy installation in racks, under tables, or in other tight spaces.

Overall, the Extron SMD 101 stands out as a comprehensive solution for AV signal processing and distribution, combining sophisticated features with user-friendly operation. Its cutting-edge technologies make it a powerful tool for any modern AV application, from corporate settings to educational institutions.
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