Introduction
This section gives an overview of the user guide and describes the SMP351 and its
features. Topics that are covered include:
• About this Guide
• About the SMP351
• General Product Overview
• Features
About this Guide
This guide contains installation, configuration, and operating information for the SMP351
and SMP 351 3G-SDI. In this guide:
• "SMP" or "SMP351" refers to either model. Where a difference occurs, it will be noted.
• "Codec" refers to the H.264 / MPEG-4 AVC codec.
• "Stream" can refer to audio, video, or both that is transmitted by the SMP351.
About the SMP351
The Extron SMP351 is a compact, high performance H.264 recording and streaming
processor that provides the ability to record a presentation and output an HDMI signal to a
local display, and, if needed, stream the AV content live while recording.
Two versions of the SMP351 are available:
• SMP351
• SMP351 3G-SDI
NOTE: Both versions have similar front and rear panel features and function exactly the
same. The SMP3513G-SDI supports a 3G-SDI video input.
Figure 1 on the next page shows a typical SMP351 application featuring a computer input
with embedded audio, an analog camera input, and a wireless microphone for audio. The
presentation is output to a local monitor for previewing and recorded to an optional USB
drive connected to the front USB input.
SMP351 • Introduction 1
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