Grass Valley Performer SD User Manual

Instruction Manual

TP3461-01

FIRST PRINTING: SEPTEMBER 1994

PERFORMER

DIGITAL 10X1 ROUTING SWITCHER

Contacting Grass Valley Group

Region Voice Fax Address Web Site

North America [phone]

530-478-4148

Pacific Operations [phone]

Support: 852-2585-6579
U.K., Europe, Asia, Middle East [phone] [phone]
France [phone]
Germany [phone] [phone]

Copyright © Grass Valley Group. All rights reserved.

This document may not be copied, in whole or in part, or otherwise reproduced, except as specifically
permitted under U.S. copyright law, without the prior written consent of Grass Valley Group, P.O. Box
599000, Nevada City, CA 95959-7900 USA. GRASS VALLEY GROUP is a registered trademark and
Grass Valley is a trademark of Grass Valley Group. All registered trademarks and trademarks are prop­erty of their respective holders. Grass Valley Group products are covered by U.S. and foreign patents,
issued and pending. Product options and specifications subject to change without notice. The informa­tion in this manual is furnished for informational use only, is subject to change without notice, and
should not be construed as a commitment by Grass Valley Group. Grass Valley Group assumes no re­sponsibility or liability for any errors or inaccuracies that may appear in this publication.

[phone] Grass Valley Group

[phone]

P.O. Box 599000
Nevada City, CA 95959-7900
USA

www.grassvalleygroup.com

Contents

Important Safeguards and Regulatory Notices

Symbols and Their Meaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii

North American Power Supply Cords . . . . . . . . . . . . . . . . . xiii

International Power Supply Cords . . . . . . . . . . . . . . . . . . . . xiii

EMC Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Federal Communications Commission

(FCC) Part 15 Information . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Germany – FTZ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

iii

Preface

About the Performer™ Manual. . . . . . . . . . . . . . . . . . . . . . . . . . xiiv

Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii

Section 1 — Product Description

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Contents

Section 2 — Installation

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Rear Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

VAA Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Front Panel Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

Power Supply Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Tally Board (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Button Labeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Switcher Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Common Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

Performer Setup Switch Location . . . . . . . . . . . . . . . . . . . . 2-10

Performer Remote to Performer . . . . . . . . . . . . . . . . . . . . . 2-11

PC (Performer ASCII) to Performer . . . . . . . . . . . . . . . . . . 2-12

PC (Performer ASCII) to Performer (cont.) . . . . . . . . . . . . 2-13

PC (Performer ASCII) to Modem to Performer . . . . . . . . . 2-14

PC (Performer ASCII) to Modem to Performer (cont.) . . 2-15

PC (TEN-XL ASCII) to Performer (cont.) . . . . . . . . . . . . . 2-17

PC (TEN-XL ASCII) to Modem to Performer . . . . . . . . . . 2-18

PC (TEN-XL ASCII) to Modem to Performer (cont.) . . . . 2-19

TEN-XL SCP (XY-mode) to Performer . . . . . . . . . . . . . . . . 2-20

TEN-XL SCP (XY-mode) to Modem to Performer . . . . . . 2-21

TEN-XL Remote Panels to Performer . . . . . . . . . . . . . . . . . 2-22

TNX-AFV19 to Performer . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

20-TEN XYCP to Performer . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Model 100/110 to Performer (Always Follow mode) . . . 2-25

Model 100/110 to Performer (Conditional mode) . . . . . . 2-26

Model 200 to Performer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Model 300 to Performer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

Installation Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29

Frame Top Removal and Replacement . . . . . . . . . . . . . . . . 2-30

iv

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Removing/Replacing Terminating Resistors . . . . . . . . . . 2-32

Remote Connector Cabling . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

OPTION Connector Cabling . . . . . . . . . . . . . . . . . . . . . . . . 2-35

Tally Board Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

Tally Board Option Installation . . . . . . . . . . . . . . . . . . . . . . 2-36

Looping Cable Option Installation . . . . . . . . . . . . . . . . . . . 2-39

Vertical Interval Strobe Selection . . . . . . . . . . . . . . . . . . . . 2-40

Switch Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Switcher Polling Address . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43

Polling Address,

Non GVG TEN-XL ASCII Protocols. . . . . . . . . . . . . . . 2-44

Polling Address, GVG TEN-XL ASCII Protocol . . . . 2-44

Serial Communications Protocol Selection. . . . . . . . . . . . . 2-45

General Selection Instructions . . . . . . . . . . . . . . . . . . . 2-45

Control Panel Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47

Performer Serial Remote Control Panel . . . . . . . . . . . . . . . 2-48

Performer Protocol Selection . . . . . . . . . . . . . . . . . . . . 2-48

General Rules for Performer/TEN-20,

20-TEN Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50

Performer S1 Switch Settings . . . . . . . . . . . . . . . . . . . . 2-50

Remote Panel Switch Settings . . . . . . . . . . . . . . . . . . . 2-54

TEN–XL SCP Switch Configuration . . . . . . . . . . . . . . . . . . 2-59

Controlling More Than One Performer . . . . . . . . . . . 2-59

SCP Power Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-68

TEN–20/20–TEN Panels and Serial Interface . . . . . . . . . . 2-69

Panel Protocol Selection . . . . . . . . . . . . . . . . . . . . . . . . 2-69

General Rules for TEN-20, 20-TEN Protocol . . . . . . . 2-71

Performer S1 Switch Settings. . . . . . . . . . . . . . . . . . . . . 2-71

TEN–20 Panel Switch Settings . . . . . . . . . . . . . . . . . . . 2-75

Serial Interface Switch Settings . . . . . . . . . . . . . . . . . . 2-79

20–TEN Panel Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . 2-83

DC Power Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-85

Contents

Section 3 — Operation & Service

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Performer Front & Remote Panel Operation . . . . . . . . . . . . . . . 3-2

v

Contents

Audio Follow Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Breakaway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Video Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Audio 1 Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Audio 2 Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Joystick Override Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

TEN-XL Control Panels Operation . . . . . . . . . . . . . . . . . . . . . . . 3-10

TNX–RCP, TNX–TCP Remote Control . . . . . . . . . . . . . . . . 3-10

Audio Follow Video Source Selection . . . . . . . . . . . . . 3-10

Breakaway Source Selection . . . . . . . . . . . . . . . . . . . . . 3-11

TEN–XL Audio Follow Video Control Panels . . . . . . . . . . 3-12

Audio Follow Video Source Selection . . . . . . . . . . . . . 3-12

19 x 1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

TNX–SCP Serial Remote Control Panel . . . . . . . . . . . . . . . 3-14

Dual Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

X–Y Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Error Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Power Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

TEN–20, 20–TEN Control Panels Operation . . . . . . . . . . . . . . . 3-19

10 BPS Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Placing Protects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Error Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

MBCP Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Selecting Destinations . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Presetting and Taking a Source . . . . . . . . . . . . . . . . . . 3-23

Clearing Entry Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Placing Protects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Displaying Destinations . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

XYCP Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Presetting Destinations . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Presetting Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Performing a Take . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Using the Last Function . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Using the Protect Function . . . . . . . . . . . . . . . . . . . . . . 3-29

Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Serial Protocol Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

vi

Performer ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Command Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Command Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Performer Remote, TEN–20/20-TEN

Compatible Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

TEN–20/20–TEN Serial Interface Protocol . . . . . . . . . . . . 3-38

Take Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Enable Protect Message . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Release Protect Message . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Status Request Message . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

Response Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

TEN–XL ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

TEN–XL SMPTE Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Model 100/110 Compatible Protocol. . . . . . . . . . . . . . . . . . 3-48

Model 200 Compatible Protocol. . . . . . . . . . . . . . . . . . . . . . 3-49

Model 300 Compatible Protocol. . . . . . . . . . . . . . . . . . . . . . 3-51

SMPTE 3245-E Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52

Notes About SMPTE Message Processing . . . . . . . . . 3-55

Performer Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

Exchange Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

In Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

Contents

vii

Index

Contents

viii

Important Safeguards and
Regulatory Notices

Information on the following pages provides important safety

guidelines for both Operator and Service Personnel. Specific

warnings and cautions will be found throughout the manual

where they apply, but may not appear here. Please read and

follow the important safety information, noting especially those

instructions related to risk of fire, electric shock, or injury to

persons.

WARNING

Any instructions in this manual that require opening the

equipment cover or enclosure are for use b y qualified service

personnel only. To reduce the risk of electric shock, do not

perform any servicing other than that contained in the

operating instructions unless you are qualified to do so.

vii

Safeguards and Notices

Symbols and Their Meaning

The lightning flash with arrowhead symbol, within an equilateral
triangle, alerts the user to the presence of “dangerous voltage”
within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle alerts the
user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the
appliance.

The fuse symbol indicates that the fuse referenced in text must be
replaced with one having the ratings indicated.

This symbol represents a protective grounding terminal. Such a
terminal must be connected to earth ground prior to making any
other connections to the equipment.

viii

CAUTION

This equipment contains static sensitive components. Use anti­static grounding equipment when handling or servicing modules
and components. When circuit modules are removed from the
frame, place them on a flat, static-controlled surface. Failure to
follow this precaution can result in component damage due to
electrostatic discharge.

Warnings

Safeguards and Notices

Heed all warnings on the unit and in the operating

■

instructions.

■

Do not use this product in or near water.

■

Disconnect ac power before installing any options.
This product is grounded through the grounding conductor

■

of the power cord. To avoid electrical shock, plug the power
cord into a properly wired receptacle before connecting the
product inputs or outputs.

■

Route power cords and other cables so that they are not likely
to be damaged.

Disconnect power before cleaning. Do not use liquid or

■

aerosol cleaners; use only a damp cloth.

■

Dangerous voltages exist at several points in this product. To
avoid personal injury, do not touch exposed connections and
components while power is on.

■

Do not wear hand jewelry or watches when troubleshooting
high current circuits, such as the power supplies.

■

During installation, do not use the door handles or front
panels to lift the equipment as they may open abruptly and
injure you.

■

To avoid fire hazard, use only the specified correct type,
voltage and current rating as referenced in the appropriate
parts list for this product. Always refer fuse replacement to
qualified service personnel.

■

To avoid explosion, do not operate this product in an
explosive atmosphere unless it has been specifically certified
for such operation.

■

Have qualified personnel perform safety checks after any
completed service.

■

If equipped with redundant power, this unit has two power
cords. To reduce the risk of electric shock disconnect both
power supply cords before servicing.

ix

Safeguards and Notices

Cautions

To prevent damage to equipment when replacing fuses, locate

■

and correct the trouble that caused the fuse to blow before
applying power.

Verify that all power supply lights are off before removing

■

power supply or servicing equipment.

■

Use only specified replacement parts.

■

Follow static precautions at all times when handling this
equipment.

■

Leave the back of the frame clear for air exhaust cooling and
to allow room for cabling. Slots and openings in the cabinet
are provided for ventilation. Do not block them.

■

Front door is part of fire enclosure and should be kept closed
during normal operation.

■

This product should be powered only as described in the
manual. To prevent equipment damage select the proper line
voltage at the ac input connector as described in the
Installation documentation.

■

To reduce the risk of electric shock, ensure that the two power
supply cords are each plugged into a separate branch circuit.

■

Circuit boards in this product may be populated with surface
mount and ASIC components. Special tools and techniques
are required to safely and effectively troubleshoot and repair
modules that use SMT or ASIC components. For this reason,
service and repair of GVG products incorporating surface
mount technology are supported only on a module exchange
basis. Customers should not attempt to troubleshoot or repair
modules that contain SMT components. GVG assumes no
liability for damage caused by unauthorized repairs. This
applies to both in- and out-of-warranty products.

x

North American Power Supply Cords

This cord is supplied with a molded grounding plug (NEMA 5-

15P) at one end and a molded grounding connector (IEC 320-C13)

at the other. Conductors are CEE color coded, light blue (neutral),

brown (line), and green/yellow (ground). See the illustration.

Operation of this equipment at voltages exceeding 130 VAC will

require power supply cords which comply with additional

NEMA guidelines.

International Power Supply Cords

This cord is supplied with a molded grounding connector (IEC

320-C13) at one end and stripped conductors (50/5 mm) at the

other. Conductors are CEE color coded, light blue (neutral),

brown (line), and green/yellow (ground). Other IEC 320 C-13

type power supply cords can be used if they comply with the

safety regulations of the country in which they are installed. See

the illustration.

Safeguards and Notices

Brown

Line

NOTE:

Blue

Green with
Yellow stripe

When used in the United States, this cord is for 100 - 130VAC

Neutral

Ground
(Earth)

use only.

When used internationally, this cord is for 100 - 130VAC or

200 - 240VAC (one line, one neutral, one earth).

xi

Safeguards and Notices

EMC Regulatory Notices

Federal Communications Commission (FCC) Part 15 Information

This equipment has been tested and found to comply with the
limits for a Class A digital device pursuant to Part 15 of FCC
Rules.

These limits are designed to provide reasonable protection
against harmful interference in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.

xii

Germany – FTZ

Safeguards and Notices

Hiermit wird bescheingt, dieses Gerät in Übereinstimmung mit

den Bestimmungen der Amtsblatt-Verfügung Vfg. 243/46 (1992)

funk-entstört ist. Der Deutschen Bundespost wurde das

inverkehrbringen dieses Gerätes angezeigt und die

Berechtingung zur Überprüfung der Serie auf Einhalten der

Bestimmungen eingeräumt.

We hereby certify that this equipment complies with the RFI

suppression requirements of Vfg. 243/46 (1992). The German

postal service was notified that the equipment is being marketed.

The German Postal Service has the right to re-test the equipment

and verify compliance.

Grass Valley Group, Inc.
P.O. Box 1114
Grass Valley, CA 95945
U.S.A.

HINWEIS FÜR DEN BENUTZER/BETREIBER: Die Vom

Betreiber zusammengestellte Anlage, innerhalb dieses Gerätes

eingesetzt wird, muß ebenfalls den Voraussetzungen Vfg. 243/46

(1992) genügen.

The German Postal Service requires that systems assembled by

the operator/user of this instrument must also comply with Postal

Regulation Vfg. 243/46 (1992).

HINWEIS FÜR DEN BENUTZER/BETREIBER: Dieses Gerät darf

in Meßaufbauten nur betrieben werden, wenn die

Voraussetzungen Vfg. 243/46 (1992) eingehalten werden.

The German Postal Service requires that this equipment, when

used in a test setup, may only be operated if the requirements of

Postal Regulation Vfg. 243/46 (1992) are complied with.

xiii

Safeguards and Notices

xiv

2

About the Performer

Preface

™

Manual

The manual contains installation, operation, and service
instructions for Performer and its optional accessories and
control panels.

The manual contains the following sections.

■

Product Description—An overview of Performer,
including a functional description and a table of
specifications.

■

Installation—A comprehensive guide to uncrating,
installing, configuring, and cabling your Performer
system and its options.

■

Operation and Service—A guide to using your Performer
system and information regarding service.

■

Index—An alphanumeric locator of subjects in this
manual.

In addition, a glossary of terms begins on the next page.

xv

Preface

Glossary of Terms

The terms defined below are used in this manual. We have listed
them here for your convenience.

AC coupled

address An identification tag for separate devices sharing a common

ASCII (American Standard Code for Information Interchange) – A

ASCII string

audio follow video An operational mode in which audio and video channels are

baud rate In terms of bits, the number of bits per second transmitted in

binary A base-2 numbering system using the two digits 0 and 1, as

BPS

breakaway The source number of at least one level (video, audio 1, or au-

bus A signal path to which a number of devices (control panels,

channel In routing switchers, a complete and independent signal path.
controlled destinations Outputs that are assigned to a specific control panel.
destination offset The addresses of the destinations controlled by a control pan-

destination The point to which a source signal is routed.

A method of connecting one circuit to another so as to trans­mit the varying AC characteristics of the signal while blocking
the static (DC) characteristics.

communications bus.

standard system used extensively in data transmissions, in
which 128 letters, numerals, symbols, and special codes are
each represented by a binary number.

A group of letters, numerals, and/or symbols represented by
ASCII code equivalents.

tied together so that when the operator selects the video
source, the audio simultaneously and automatically switches
with the video.

a digital signal.

opposed to the ten digits, 0 through 9, in the decimal system.
(Button Per Source) A router control panel that has a designat-

ed button for every controlled source.

dio 2) is different from the source number of one or both of the
other levels.

routers, etc.) are connected.

el which have been incremented to a higher set of numbers.

xvi

Glossary of Terms

level offset The addresses of a level controlled by a control panel which

have been incremented to a higher set of numbers.

level(s) An independently controllable stratum of signals within a

routing switcher. Typically, a routing switcher will have a lev­el of video and one or more audio levels.

MBCP

offset Where a set of numbers such as 1 through 10 are incremented

parity A method of verifying the accuracy of transmitted or record-

polling address A unique device designation that allows a controller to make

protect The current selection is locked and prevented from accidental

protocol A set of conventions governing the format and timing of mes-

RS232, RS422, RS485 Electrical/mechanical standards for serial communications.
serial bit rate The speed at which bits are transmitted in a serial digital sig-

SERIM (SERial Interface Module) Translates RS232 and RS422 com-

slave mode A condition in which a piece of equipment does not act inde-

source offset

source The origin of a video &/or audio signal—i.e., video tape re-

stop bit The indicator in the serial digital communications protocol

tally The acknowledgement returned to a control panel or terminal

(MultiBus Control Panel) A router control panel capable of
controlling multiple destinations. The destinations are select­able on the front panel.

to another range of values such as 11 through 20.

ed data.

regular status checks of a number of devices on a common
communications bus.

change.

sage exchanges to control data movements and detect errors.

nal.

mands into RS485 format.

pendently, but only under the control of another piece of
equipment.

The addresses of the sources controlled by a control panel
which have been incremented to a higher set of numbers.

corder, video camera, production switcher, etc..

that the transfer of one byte is complete.

that an operation has been executed.

xvii

Preface

vertical interval strobe (VI) In relation to video switching applications, a signal sent

to indicate the beginning of the vertical interval.

video clamped Re-establishment of a fixed DC reference level for the video

signal.

X-Y mode A switching matrix which places inputs (sources) on an X axis

and outputs (destinations) on a Y axis. Routing connections
are made by specifying an X value to be connected to a Y val­ue. Any available source can be connected to any available
destination.

xviii

1

Introduction

Product Features

Product Description

This section provides a general description of the serial digital
version of the Performer™ 10 x 1 Routing Switcher. Included are

Product features

■

Functional description

■

■

Specifications

Performer is a serial digital, 10-input by 1-output, video with dual
(AES/EBU) audio routing system from Grass Valley Group.

8

7

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/4

3

h

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A

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IR

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1

STATUS DISPLAY

INPUT SELECTION

PERFORMER–SD

VAA

GRASS VALLEY GROUP

0

1

9

1-1

Section 1 —

Product Description

Performer standard features include:

Automatic television standards compatibility

■

■

AFV or full breakaway operation

■

Protect function
Front panel control

■

■

TEN–XL and TEN–20/20–TEN compatibility

■

Source display for Video, A1, & A2 assignments
RS232, RS422, or RS485 control port

■

ASCII, SMPTE, & production switcher compatibility

■

■

External or internal Vertical Interval strobe select

■

BNC video connectors

■

BNC or D type AES/EBU connectors

■

Dual video and audio outputs
Compact, 1 rack unit construction

■

■

90 to 250-volt operation

■

Relegendable pushbutton caps

Performer options include:

Tally relays for 10 inputs & Joystick Override control

■

■

Remote control panel

Performer circuitry resides in a sealed, 1 rack unit frame. The
standard unit contains just four printed circuit boards. These are:

Rear Motherboard (two versions available)

■

■

VAA board

■

Front Panel board
Power Supply board

■

■

Optional tally relays and GPI inputs can add one more
board, the Tally board, to the system.

1-2

Functional Description

System

Functional Description

See descriptions and the block diagram on the following pages.

The PERFORMER Serial Digital Video and AES/EBU Digital
Audio10X1 routing switcher. It is available in four (4) basic
models (configured with either BNC or D type audio connectors
and supplied with either local or remote control panel) as
described below. A bit-rate mode select switch is located on the
front of the local control panel.

D type audio I/O connectors (local or remote control):

Model PFR-SD 10X1 Serial Digital Video & AES/EBU Audio
(female D type connector ), Local Control Version.

Model PFR-SDRC 10X1 Serial Digital Video & AES/EBU Audio
(female D type connector ), Remote Control Version.

BNC type audio I/O connectors (local or remote control):

Model PFR-SDB 10X1 Serial Digital Video & AES/EBU Audio
(75Ω BNC type connector ), Local Control Version.

Model PFR-SDBRC 10X1 Serial Digital Video & AES/EBU Audio
(75Ω BNC type connector ), Remote Control Version.

NOTE:

The two AES/EBU audio channels can be: switched
together with video, switched together separately, or switched
individually. If audio is not synchronous with video, some
disturbances may occur during switching.

Tally and Cable Kit options

The tally option is a module providing contact closures for each
video input. As a video crosspoint is selected, the appropriate
relay closes. This closure can be used to light an external lamp for
tally, or can be used for a bi-directional route for an intercom.

The cable kit option is installed in the frame to permit use of an
additional control panel.

1-3

Section 1 —

Product Description

Front panel bit-rate mode switch:

The bit-rate switch on the local control panel allows you to choose
between FORCED, AUTO, or DIRECT modes of matching input/
output bit rates.

• Forced modes include: 143 Mb/s for D2/NTSC; 177 Mb/s for
D2/PAL; 270 Mb/s for D1 both 625 and 525; and 360 Mb/s for
future HDTV use. NOTE: Care must be taken when using the
forced modes of operation; the bit rate selected via the front panel
switch must match the input rate(s).

• AUTO mode: provides automatic bit rate selection when input
rates are different. The PERFORMER automatically detects the
input bit rate and switches to the correct rate, i.e. with D1 at Input
1 and D2 at Input 2 user switches from Input 1 to Input 2. The
switcher will automatically switch to the new rate. NOTE: The
input sources must be locked together and timed).

• DIRECT mode: like the AUTO mode it automatically selects the
input rate and the non-reclocked mode (signal goes directly from
the input to the output without going through the deserializer or
the regenerator circuitry).

1-4

Video

Ten by one (10X1) video switcher. Provides 10 inputs and 1 output
serial digital video switching.

An equalizer is located on each video input path to equalize up to
225m of 8281 cable. The serial data stream output of the equalizers
enter a 10X1 crosspoint.

Audio

Ten by one (10X1) audio switcher. Provides two (2) “stereo” AES/
EBU channels of 10 by 1 serial digital audio switching.

Rear Motherboard

All inputs and outputs are through connectors on the Rear
Motherboard. This board has only mechanical functions and
mounts no active circuitry.

There are two different types of rear connector panels available
(unbalanced BNC type audio connectors and balanced D type
audio connctors). Both types accomodate 10 video inputs, 1 pair
of video outputs, 2X10 audio inputs, and 2X2 audio outputs.

Unbalanced BNC type audio connectors

Ten (10) BNC connectors for ten (10) video inputs
Two (2) BNC connectors for the video output pair
Twenty (20) BNC connectors (10 for AES1 and 10 for AES2)
Four (4) BNC connectors (2 for AES1 out and 2 for AES2 out
An IEC connector for the mains power supply
One (1) 25-pin female D type connector for serial communication

and a slot for an optional 25-pin female D type connector

Functional Description

Balanced D type audio connector

Ten (10) BNC connectors for ten (10) video inputs
Two (2) BNC connectors for the video output pair
Two (2) 37-pin D type connectors (one each for AES1 and AES2 in)
An IEC connector for the mains power supply
Twenty-five (25) pin female D type connector for serial

communication and a slot for an optional twenty-five (25) pin
female D type connector

1-5

Section 1 — Product Description

VAA Board

The VAA board contains:

■ Video processing circuitry

■ Audio processing circuitry

■ Control circuitry

■ Parameter-determining switches

■ Vertical Interval Strobe generating circuitry

Performer video processing circuitry consists of: ASIC cable
equalizers, an ASIC serial crosspoint, and an ECL line driver.
Serial bit stream at inputs is converted to parallel, and processed
in parallel digital domain, to extract line ID information and to
generate the vertical interval switching strobe.

The Performer supports two independent audio AES/EBU
channels (AUDIO 1/2 and AUDIO 3/4). Inputs can be either
balanced or unbalanced. Audio is received and converted to TTL
signals by RS485 line receiver circuitry. A pair of 8X1 multiplexers
form a 10X1 multiplexer to select one of the ten input signals of
AES Ch 1/2 to the output. AES Ch 3/4 uses identical circuitry.

Control circuitry is based on an 68HC711 CPU running at

4.9152MHz, supported by a 27C256 PROM and a DS1225AD
RAM. The CPU contains a programmable, full-duplex, serial
channel to handle serial data to and from the RS232, RS422, and
RS485 driver and receiver circuits. Three 8-segment switches
allow users to determine serial baud rate, communications
protocol, external or internal VI strobe, and other functions. The
internal VI strobe is stripped from digital video by a TRS ID Data
Separator. An external VI strobe may be used if desired.

1-6

Front Panel Board

The Front Panel board mounts a row of 13 buttons and three, two­character, seven-segment displays. The buttons are sequentially
scanned by the VAA board microcomputer (Switch Write); a
pressed button is detected by one of the two Switch Read lines and
the appropriate source taken to the output of the switcher. The
take may be Audio Follow Video or breakaway depending upon

the state of the three “breakaway” buttons (V, AES1, and AES2).
The Performer is capable of full breakaway operation, meaning
that video may be separately switched from audio and even the
two audio channels may be separately switched one from the
other.

The microcomputer writes to the displays over an 8-bit parallel
bus. The appropriate display is enabled by a driver output from
the VAA board to accept the source number data.

Power Supply Board

The automatic switchmode Power Supply board delivers +5VDC
to the VAA main board. A step-up converter provides +15VDC
necessary for remote operation and for lighting the front panel
LEDs. Input power may be 100 to 240 volts. The AC line cord is
hardwired to the frame and is UL or TUV selectable at time of
original order.

The AC input is fused but is not user serviceable. This fuse is
soldered onto the power supply circuit board and is accessible to
a qualified service person only by removing the top cover.

Functional Description

Tally Board (option)

The optional Tally board mounts 10 relays and 13 opto-isolated
inputs. The 10 relays are slaved to the video selections made by
the switcher operator. When a video source is selected, the
corresponding relay closes (only a dry contact relay closure is
provided). The opto-isolated inputs provide a connection point
for a Joystick Override or other remote control device.

1-7

Section 1 — Product Description

VIDEO/MICROPROCESSOR CONTROLLER

FUNCTIONAL BLOCK DIAGRAM

EQUALIZERS

VIDEO
INPUTS
(1 - 10)

Front Panel
Read/Write
LED Control

GPI/Tally
Options

Serial
Communications

AUTOMATIC

1

2

3

4

5

6

7

8

9

10

11th input

RS422

RS232

16X8 VIDEO

CROSSPOINT

Serial Control

Data Stream

Direct Mode

DESERIALIZER

COPROCESSOR

Indirect Mode

Bit Rate Switch

FIELD PROGRAMMABLE

GATE ARRAY

(Rate Detector)

Vertical
Interval

MICRO-PROCESSOR CONTROLLER

• Front panel control & communication

• RS422/232 communication control

• GPI and Tally control

SERIAL
LINE
DRIVER

(front panel)

Direct

Auto
143Mb/s
177Mb/s
270Mb/s
360Mb/s

To Audio Multiplexer

VIDEO

OUTPUTS

1-8

AUDIO

FUNCTIONAL BLOCK DIAGRAM

Functional Description

AES/EBU
AUDIO
INPUTS
(Ch 1)

AES/EBU
AUDIO
INPUTS
(Ch 2)

From Controller

LINE

RECEIVERS

Channel 1

10 X 1

AUDIO

MULTIPLEXER

Channel 2

10 X 1

AUDIO

MULTIPLEXER

RS485
LINE
DRIVER

RS485
LINE
DRIVER

CH 1

OUTPUTS

CH 2

OUTPUTS

1-9

Section 1 — Product Description

Performer Specifications

Table 1-1. Performer Specifications

Parameter Performanace

Serial Digital Video Inputs

Video Data Type Serial Digital conforms to SMPTE 259M (D1, D2N, D2P)
Number of inputs Ten (10)
Data Format Selection Internal Selector Switch
Input Impedance 75Ω nominal, self terminating
Input Return Loss >15dB (1MHz to 270MHz)
Connector Type 75Ω BNC (compatible with 50Ω cable ends)
Cable Equalization Automatic for <225m of Belden 8281 up to 270MHz

For direct mode, depends on serial standard and
receiving equipment.

AES/EBU Digital Audio Inputs

Number of Audio Matrices Two (2) 10X1 AES/EBU matrices
Audio Data Type Serial Digital conforms to standard AES3-1992 (ANSI

S4.40-1985)
Number of Inputs Ten per each audio matrix (20 total)
Input Level 400mV <signal level <7Vp-p balanced
Input Connector Type Either balanced female “D” connector or unbalanced

75ΩBNC connector

Input Impedance 110Ω, ±5%, 100KHz to 6MHz (D connector input only)

75Ω, ±5%, 100KHz to 6MHz (BNC connector input only)

Common Mode Voltage +7V, –7V Maximum (D connector input only)

Serial Digital Video Outputs

Video Data Type Serial Digital conforms to SMPTE 259M standard
Number of Outputs Two (2)
Output Impedance 75Ω nominal
Output Return Loss >15dB (1MHz to 360MHz)
Signal Amplitude 800mV ±10% when terminated into 75Ω
D.C. Offset ±0.5V
Rise and Fall Times ≤1.5 nS when terminated into 75Ω
Connector Type 75Ω BNC

1-10