Grass Valley 8941 User Manual

8941

270 MBPS MONITORING DA

Instruction Manual

Software Version 1.4.0

071810902

NOVEMBER 2009

Contacting Grass Valley

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Benelux/Belgium: +32 (0)
Germany, Austria, Eastern Europe: [phone]

Copyright © Grass Valley, Inc. All rights reserved.
This product may be covered by one or more U.S. and foreign patents.

2 334 90 30 Benelux/Netherlands: [phone] N. Europe: [phone]

Grass Valley Web Site

The www.grassvalley.com web site offers the following:

Online User Documentation — Current versions of product catalogs, brochures,

data sheets, ordering guides, planning guides, manuals, and release notes
in .pdf format can be downloaded.

FAQ Database — Solutions to problems and troubleshooting efforts can be

found by searching our Frequently Asked Questions (FAQ) database.

United States/Canada

24 x 7

st Asia/Singapore: [phone]

3 5484 6868

5 Central/South America: [phone]

Uzbekistan: +7 095 25

4 444 UK, Ireland, Israel: [phone]

[phone] or [phone]

80924 225 Switzerland: [phone]

02 48 41 46 58 S. Europe/Spain: [phone]

Software Downloads — Download software updates, drivers, and patches.

2 8941 Product Component Instruction Manual

Contents

Preface

Index

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Frame Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Module Placement in the 8900 Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Loop-through Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SMPTE Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Module Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Alignment Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

EQ Warning Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Output Gain Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Contents

4 8941 Instruction Manual

Preface

About This Manual

This manual describes the features of a specific module of the Gecko 8900
Signal Processing System. As part of this module family, it is subject to
Safety and Regulatory Compliance described in the Gecko 8900 Series
frame and power supply documentation (see the Gecko 8900 Frames Instruc-

tion Manual ).

8941 Instruction Manual 5

Preface

6 8941 Instruction Manual

8941 270 MBPS Monitoring DA

Introduction

The 8941 270 MBPS Monitoring DA module encodes one channel of a serial
digital component video into NTSC or PAL analog composite video. The
selection of output format, NTSC or PAL, is automatic depending on the
input line rate. Four reclocked serial digital video outputs (2 inverting and
2 non-inverting) are also provided.

The module has auto-equalization for up to 300 meters of Belden 8281 (or
equivalent). There is an Equalizer (EQ) warning LED to indicate when the
equalizer is approaching maximum capacity.

The 8941 module provides:

• Loop-through input

• Four analog outputs

•Two inverting reclocked digital outputs

•Two non-inverting reclocked digital outputs

•Auto format selection

•Auto-equalization

•Meets SMPTE 259M or EBU Tech 3267 standard

•Ancillary data detection

•Ancillary audio data detection

•Health monitoring

8941 Instruction Manual 7