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Introduction, In this chapter, A word of thanks – Sierra Video DAH-239 User Manual

Page 6: Overview

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Page 6 of 19

DAH-239 Owner’s Manual

(V 1.1)

Introduction

In This Chapter

This chapter includes the following sections:

• A Word of Thanks
• Overview
• Functional Block Diagram
• Supported Audio and Video Formats
• Documentation Terms

A Word of Thanks

Congratulations on choosing the openGear

TM

DAH-239 Dual HD/SD Reclocking Distribution

Amplifier. The DAH-239 is part of a full line of modular conversion gear for broadcast TV
environments. The Sierra Video Systems openGear

TM

line includes video decoders and encoders, audio

Embedder and de-Embedder, distribution amplifiers, format converters, and much more. Sierra’s
openGear

TM

modular conversion gear will meet your signal conversion and distribution needs now and

well into the future.

Should you have questions pertaining to the installation or operation of your DAH-239, please contact
us at the numbers listed on the back cover of this manual. We are happy to help with any questions
regarding this or any other openGear

TM

card.

Overview

The DAH-239 is a high quality two channel, Dual HD/SD Reclocking Distribution Amplifier. It is
capable of equalizing and reclocking two channels in HD or SD.

The card has two HD/SD-SDI inputs, labeled “SDI Input 1” and “SDI Input 2”. The card has two sets
of four SDI outputs labeled “SDI output A” and “SDI output B”. The outputs of the four BNCs in each
set always emit the same data.

There are four routing modes available on the card.

1) Input 1  Output A, Input 2  Output B

2) Input 1  Output A, Input 1  Output B

3) Input 2  Output A, Input 2  Output B