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Chapter 1 Introduction
HDC6831N HD-SDI Downconverter / Demultiplexer /Audio and Video Monitor 1
Chapter 1 Introduction
1.1 Overview
In the manual, HDC6831N HD-SDI Downconverter / Demultiplexer /Audio and Video Monitor is
introduced. The modules can be installed in 6800N series frame.
HDC6831N is a high definition downconverter from HD-SDI to SD-SDI or analog composite, in
addition, it also support SD-SDI to analog composite downconversion.
HDC6831N is a multiplexer with 2-pair AES/EBU digital audio outputs and 4-channel analog audio
outputs. The module characterizes 8-channel audio meter indication which can be overlapped on
CVBS output or SD-SDI output.
The module can display OSD menu, time code and standards of input and output, and can monitor
8-channel audio signal. Furthermore, it supports SNMP control and status indication.
Tab. 1-1
Description of input and output of HDC6831N
Module Input Output
HDC6831N
1-channel
HD/SD-SDI Video
input
 2-channel reclocked HD/SD-SDI loop outputs
 2-channel SD-SDI outputs with audio re-inserting and
video processing *
 2-channel CVBS outputs with video processing *
 4-channel analog audio outputs
 2-pair AES/EBU digital audio outputs, balanced or
unbalanced
* video processing means users set the parameters in order to add OSD menu, time code,
standards of input and output and 8-channel audio meter into video.
1.2 Features
The HDC6831N offers the following features:
 Auto-detect HD-SDI or SD-SDI input, and convert it into SD-SDI and CVBS outputs with the
approximate frequency
 Support several standard conversion of 1080I
，
1080P
，
720P
，
1035I
，
576I
，
480I. For more
information, please refer to Tab. 1-2
 2-channel reclocked HD/SD-SDI loop outputs
 2-channel SD-SDI outputs after downconversion ( only for HD-SDI input), or 2-channel
SD-SDI outputs without downconversion ( only for SD-SDI input)