Extron Electronics PVS 204SA User Manual

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PVS 204SA

PoleVault™ Switcher

68-1217-01

Rev. D

09 08

Precautions

Safety Instructions • English

This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment.

This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product’s enclosure that may present a risk of electric shock.

Caution

Read Instructions • Read and understand all safety and operating instructions before using the equipment.

Retain Instructions • The safety instructions should be kept for future reference.

Follow Warnings • Follow all warnings and instructions marked on the equipment or in the user

information.

Avoid Attachments • Do not use tools or attachments that are not recommended by the equipment

manufacturer because they may be hazardous.

Consignes de Sécurité • Français

Ce symbole sert à avertir l’utilisateur que la documentation fournie avec le matériel contient des instructions importantes concernant l’exploitation et la maintenance (réparation).

Ce symbole sert à avertir l’utilisateur de la présence dans le boîtier de l’appareil de tensions dangereuses non isolées posant des risques d’électrocution.

Attention

Lire les instructions• Prendre connaissance de toutes les consignes de sécurité et d’exploitation avant

d’utiliser le matériel.

Conserver les instructions• Ranger les consignes de sécurité aﬁn de pouvoir les consulter à l’avenir.

Respecter les avertissements • Observer tous les avertissements et consignes marqués sur le matériel ou

présentés dans la documentation utilisateur.

Eviter les pièces de xation • Ne pas utiliser de pièces de ﬁxation ni d’outils non recommandés par le

fabricant du matériel car cela risquerait de poser certains dangers.

Sicherheitsanleitungen • Deutsch

Dies es Symbol soll dem Benut zer in der im Liefer umfang ent haltenen Dokumentation besonders wichtige Hinweise zur Bedienung und Wartung (Instandhaltung) geben.

Dieses Symbol soll den Benutzer darauf aufmerksam machen, daß im Inneren des Gehäuses dieses Produktes gefährliche Spannungen, die nicht isoliert sind und die einen elektrischen Schock verursachen können, herrschen.

Achtung

Lesen der Anleitungen • Bevor Sie das Gerät zum ersten Mal verwenden, sollten Sie alle Sicherheits-und

Bedienungsanleitungen genau durchlesen und verstehen.

Aufbewahren der Anleitungen • Die Hinweise zur elektrischen Sicherheit des Produktes sollten Sie

aufbewahren, damit Sie im Bedarfsfall darauf zurückgreifen können.

Befolgen der Warnhinweise • Befolgen Sie alle Warnhinweise und Anleitungen auf dem Gerät oder in der

Benutzerdokumentation.

Keine Zusatzgeräte • Verwenden Sie keine Werkzeuge oder Zusatzgeräte, die nicht ausdrücklich vom

Hersteller empfohlen wurden, da diese eine Gefahrenquelle darstellen können.

Warning

Power sources • This equipment should be operated only from the power source indicated on the product. This

equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.

Power disconnection • To remove power from the equipment safely, remove all power cords from the rear of

the equipment, or the desktop power module (if detachable), or from the power source receptacle (wall plug).

Power cord protection • Power cords should be routed so that they are not likely to be stepped on or pinched by

items placed upon or against them.

Servicing • Refer all servicing to qualiﬁed service personnel. There are no user-serviceable parts inside. To

prevent the risk of shock, do not attempt to service this equipment yourself because opening or removing covers may expose you to dangerous voltage or other hazards.

Slots and openings • If the equipment has slots or holes in the enclosure, these are provided to prevent

overheating of sensitive components inside. These openings must never be blocked by other objects.

Lithium battery • There is a danger of explosion if battery is incorrectly replaced. Replace it only with the

same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

Avertissement

Alimentations• Ne faire fonctionner ce matériel qu’avec la source d’alimentation indiquée sur l’appareil. Ce

matériel doit être utilisé avec une alimentation principale comportant un ﬁl de terre (neutre). Le troisième contact (de mise à la terre) constitue un dispositif de sécurité : n’essayez pas de la contourner ni de la désactiver.

Déconnexion de l’alimentation• Pour mettre le matériel hors tension sans danger, déconnectez tous les cordons

d’alimentation de l’arrière de l’appareil ou du module d’alimentation de bureau (s’il est amovible) ou encore de la prise secteur.

Protection du cordon d’alimentation • Acheminer les cordons d’alimentation de manière à ce que personne ne

risque de marcher dessus et à ce qu’ils ne soient pas écrasés ou pincés par des objets.

Réparation-maintenance • Faire exécuter toutes les interventions de réparation-maintenance par un technicien

qualiﬁé. Aucun des éléments internes ne peut être réparé par l’utilisateur. Aﬁn d’éviter tout danger d’électrocution, l’utilisateur ne doit pas essayer de procéder lui-même à ces opérations car l’ouverture ou le retrait des couvercles risquent de l’exposer à de hautes tensions et autres dangers.

Fentes et orices • Si le boîtier de l’appareil comporte des fentes ou des oriﬁces, ceux-ci servent à empêcher

les composants internes sensibles de surchauffer. Ces ouvertures ne doivent jamais être bloquées par des objets.

Lithium Batterie • Il a danger d’explosion s’ll y a remplacment incorrect de la batterie. Remplacer uniquement

avec une batterie du meme type ou d’un ype equivalent recommande par le constructeur. Mettre au reut les batteries usagees conformement aux instructions du fabricant.

Vorsicht

Stromquellen • Dieses Gerät sollte nur über die auf dem Produkt angegebene Stromquelle betrieben werden.

Dieses Gerät wurde für eine Verwendung mit einer Hauptstromleitung mit einem geerdeten (neutralen) Leiter konzipiert. Der dritte Kontakt ist für einen Erdanschluß, und stellt eine Sicherheitsfunktion dar. Diese sollte nicht umgangen oder außer Betrieb gesetzt werden.

Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen, sollten Sie alle Netzkabel

aus der Rückseite des Gerätes, aus der externen Stomversorgung (falls dies möglich ist) oder aus der Wandsteckdose ziehen.

Schutz des Netzkabels • Netzkabel sollten stets so verlegt werden, daß sie nicht im Weg liegen und niemand

darauf treten kann oder Objekte darauf- oder unmittelbar dagegengestellt werden können.

Wartung • Alle Wartungsmaßnahmen sollten nur von qualiziertem Servicepersonal durchgeführt werden.

Die internen Komponenten des Gerätes sind wartungsfrei. Zur Vermeidung eines elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst öffnen, da beim Entfernen der Abdeckungen die Gefahr eines elektrischen Schlags und/oder andere Gefahren bestehen.

Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse aufweist, dienen diese zur

Vermeidung einer Überhitzung der empndlichen Teile im Inneren. Diese Öffnungen dürfen niemals von

anderen Objekten blockiert werden.

Litium-Batterie • Explosionsgefahr, falls die Batterie nicht richtig ersetzt wird. Ersetzen Sie verbrauchte

Batterien nur durch den gleichen oder einen vergleichbaren Batterietyp, der auch vom Hersteller empfohlen wird. Entsorgen Sie verbrauchte Batterien bitte gemäß den Herstelleranweisungen.

Instrucciones de seguridad • Español

Este símbolo se utiliza para advertir al usuario sobre instrucciones importantes de operación y mantenimiento (o cambio de partes) que se desean destacar en el contenido de la documentación suministrada con los equipos.

Este símbolo se utiliza para advertir al usuario sobre la presencia de elementos con voltaje peligroso sin protección aislante, que puedan encontrarse dentro de la caja o alojamiento del producto, y que puedan representar riesgo de electrocución.

Precaucion

Leer las instrucciones • Leer y analizar todas las instrucciones de operación y seguridad, antes de usar el

equipo.

Conservar las instrucciones • Conservar las instrucciones de seguridad para futura consulta.

Obedecer las advertencias • Todas las advertencias e instrucciones marcadas en el equipo o en la

documentación del usuario, deben ser obedecidas.

Evitar el uso de accesorios • No usar herramientas o accesorios que no sean especiﬁcamente recomendados

por el fabricante, ya que podrian implicar riesgos.

安全须知 • 中文

这个符号提示用户该设备用户手册中有重要的操作和维护说明。

这个符号警告用户该设备机壳内有暴露的危险电压，有触电危险。

注意

阅读说明书 • 用户使用该设备前必须阅读并理解所有安全和使用说明。保存说明书 • 用户应保存安全说明书以备将来使用。遵守警告 • 用户应遵守产品和用户指南上的所有安全和操作说明。避免追加 • 不要使用该产品厂商没有推荐的工具或追加设备，以避免危险。

Advertencia

Alimentación eléctrica • Este equipo debe conectarse únicamente a la fuente/tipo de alimentación eléctrica

indicada en el mismo. La alimentación eléctrica de este equipo debe provenir de un sistema de distribución general con conductor neutro a tierra. La tercera pata (puesta a tierra) es una medida de seguridad, no puentearia ni eliminaria.

Desconexión de alimentación eléctrica • Para desconectar con seguridad la acometida de alimentación eléctrica

al equipo, desenchufar todos los cables de alimentación en el panel trasero del equipo, o desenchufar el módulo de alimentación (si fuera independiente), o desenchufar el cable del receptáculo de la pared.

Protección del cables de alimentación • Los cables de alimentación eléctrica se deben instalar en lugares donde

no sean pisados ni apretados por objetos que se puedan apoyar sobre ellos.

Reparaciones/mantenimiento • Solicitar siempre los servicios técnicos de personal calicado. En el interior no

hay partes a las que el usuario deba acceder. Para evitar riesgo de electrocución, no intentar personalmente la reparación/mantenimiento de este equipo, ya que al abrir o extraer las tapas puede quedar expuesto a voltajes peligrosos u otros riesgos.

Ranuras y aberturas • Si el equipo posee ranuras o oriﬁcios en su caja/alojamiento, es para evitar el

sobrecalientamiento de componentes internos sensibles. Estas aberturas nunca se deben obstruir con otros

objetos.

Batería de litio • Existe riesgo de explosión si esta batería se coloca en la posición incorrecta. Cambiar esta

batería únicamente con el mismo tipo (o su equivalente) recomendado por el fabricante. Desachar las baterías usadas siguiendo las instrucciones del fabricante.

警告

电源 • 该设备只能使用产品上标明的电源。设备必须使用有地线的供电系统供电。第三条线

（地线）是安全设施，不能不用或跳过。

拔掉电源 • 为安全地从设备拔掉电源，请拔掉所有设备后或桌面电源的电源线，或任何接到市

电系统的电源线。

电源线保护 • 妥善布线，避免被踩踏，或重物挤压。维护 • 所有维修必须由认证的维修人员进行。设备内部没有用户可以更换的零件。为避免出现

触电危险不要自己试图打开设备盖子维修该设备。

通风孔 • 有些设备机壳上有通风槽或孔，它们是用来防止机内敏感元件过热。不要用任何东

西挡住通风孔。

锂电池 • 不正确的更换电池会有爆炸的危险。必须使用与厂家推荐的相同或相近型号的电池。

按照生产厂的建议处理废弃电池。

Quick Start — PVS 204SA

PVT RGB D

Input #2

PVT RGB D

Input #1

POWER

12V 3A MAX

I N P U T S

RGB

RGB Input Connectors on

Rear Panel of PVS 204SA

Cable from

PVT Output A

Cable from

PVT Output B

Rear Panel

Cable from

PVT Output A

Cable from

PVT Output B

VIDEO

PVT CV D

Input #3

Cable from PVT Output

PVT CV D

Input #4

Rear Panel

Composite Video Input

Connectors on

Rear Panel of PVS 204SA

Cable from PVT Output

AUX/MIX IN

+ Positive

Ground

FCC Class A Notice

Note: This equipment has been tested and found to comply with the limits for a Class A digital

device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, 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.

N This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used

with the unit to ensure compliance.

Installation

This Quick Start section deals speciﬁcally with quick connectivity and installation of the

PVS 204SA PoleVault™ switcher. At this stage,

it is assumed that all of the necessary cable routing has been completed, and that projector ceiling hardware (e.g. ceiling mounts, projector poles, projector mounting kits) and output

devices have been installed. Also, any PVT

transmitters should already be installed (but not yet connected) following the relevant supplied instruction manuals.

N Labeling the cables correctly using the

color code will make this step easier.

Inputs 1 and 2: RGB video and audio. N Two cables (A and B) are needed for each

RGB input. Do not cross connect them.

Step 1

Remove power from the switcher and any input, output, and control devices that are to be used in this installation.

Step 2

Using the supplied colored labels, label both ends of all audio/video input cables. Ensure that the

labels used match the input signal type that the

cable will carry. See chapter 2, “Installation”, “Labeling and connecting the A/V input cables”

section, for wiring diagrams and input color coding table.

N In some installations it may be prudent to

label the cables before routing them.

Step 3

Connect input devices via PVT transmitters to the RJ-45 inputs on the rear of the PVS switcher. See chapter 2, “Installation”, “A/V input

connections” section, for details and wiring diagrams.

Inputs 3 and 4: Composite video and audio.

Step 4 (optional)

Connect a mono audio source to the Aux/Mix audio input on the rear panel to mix a linelevel audio signal with the selected input’s audio.

N This channel is always active.

FRONT

REAR

Input Cables from Tr ansmitters (AV control)

I N P U T S

2B 3B

POWER

12V 3A MAX

VIDEO

PVS Output Cables to Projector

HIGH PASS FILTER

ON STEREO

DUAL MONO

OFF

Quick Start — PVS 204SA, cont’d

Step 5

Connect cables from the switcher’s RGB and

composite video output connectors to the inputs on the display device (e.g., projector).

Step 6

Connect the speakers to the ampliﬁed outputs port on the rear of the switcher. See chapter 2, “Installation”, “Speaker Conﬁguration” section, for details.

Step 11

Set up and optimize the audio (gain control and input sensitivity) for each input, including Aux/ Mix. This can be done via the front panel or by

RS-232 control. See chapter 3, “Operation and Setup”, “Setting Up and Optimizing the Audio”

section, for details.

N Upon initial power up of the switcher,

the amp level is automatically adjusted to 50%.

Step 12

Fine tune the audio by bass, treble, and loudness

adjustment. See chapter 3, “Operation and Setup”, “Setting Up and Optimizing the Audio”,

“Bass, treble, and loudness control” sections, for details.

N Do not control the PVS volume via

RS-232 if the DC volume port is connected to a VCM 100. If an VCM is controlling the volume, an MLC should not be connected to the MLC/IR/RS232 port. See chapter 2, “Installation”, “Control connection” section, for details.

Step 7

Set the rear panel DIP switch according to audio output mode (up for stereo or down for dual mono). See chapter

2, “Installation”, “A/V output

connections” section, for details.

Step 8

Connect a host computer, a control system, or an MLC (MediaLink™) controller to the RS-232/ MLC/IR control port on the rear panel. See

chapter 2, “Installation”, “Control connection”

section, for details.

Alternatively, connect an IR Link signal repeater to this port for control using an IR remote.

Step 9

Secure and cable the switcher in the PMK 450. See chapter 2, “Installation”, “Mounting the Switcher”

section, for details.

Step 10

Restore power to all devices.

Chapter 1 • Introduction .............................................................................................................1-1

About this Manual ...................................................................................................................1-2

About the PVS 240SA .............................................................................................................1-2

TP cable advantages .................................................................................................................1-2

Features .....................................................................................................................................1-3

Application Diagrams ............................................................................................................1-4

Chapter 2 • Installation ................................................................................................................2-1

UL/Safety Requirements .......................................................................................................2-2

Important safety instructions .................................................................................................. 2-2

Mounting the Switcher .........................................................................................................2-3

Rear Panel Features and Cabling .....................................................................................2-4

Power connection ............................................................................................................. 2-4

A/V input connections ...................................................................................................... 2-4

A/V output connections .................................................................................................... 2-6

Aux/Mix input connection ................................................................................................. 2-7

Control connection ............................................................................................................ 2-8

Speaker Conguration ........................................................................................................2-11

Speaker arrangement examples ..........................................................................................2-11

Connecting speakers to the PVS 204SA ..............................................................................2-12

Labeling the A/V Inputs ......................................................................................................2-13

Labeling and connecting the A/V input cables ...................................................................2-13

Labeling the PVT Decora face plates ...................................................................................2-14

Final Setup ....................................................................................................................................2-14

Chapter 3 • Operation and Setup ........................................................................................ 3-1

Front Panel Features and Operation .............................................................................. 3-2

Setting Switcher Modes ........................................................................................................3-3

Single switcher mode ..............................................................................................................3-3

Separate switcher mode .........................................................................................................3-3

Setting the single switcher mode via the front panel ........................................................3-3

Setting the separate switcher mode via the front panel ................................................... 3-4

Auto Switching ............................................................................................................................ 3-4

Setting the input auto switching mode via the front panel .............................................3-4

Setting Up and Optimizing the Audio ..........................................................................3-5

Steps for optimizing the audio ...............................................................................................3-5

Gain control ..............................................................................................................................3-6

Individual channel input sensitivity control ......................................................................3-6

Front panel input sensitivity adjustment ...........................................................................3-6

Ampliﬁer level control ........................................................................................................3-6

PRELIMINARY

PVS 204SA • Table of Contents

TOC-i

Table of Contents, cont’d

Clipping indicator

Bass, treble, and loudness control .......................................................................................... 3-7

Aux/Mix control ........................................................................................................................3-7

....................................................................................................................3-7

Resetting the Switcher ..........................................................................................................3-7

Front Panel Security Lockout (Executive Mode) ...................................................3-8

Chapter 4 • Serial Communication .....................................................................................4-1

RS-232 Programmer’s Guide ............................................................................................... 4-2

Host-to-PVS communications .................................................................................................4-2

PVS-initiated messages .......................................................................................................4-2

Error responses ...................................................................................................................4-3

Using the command/response tables .................................................................................4-3

Symbol deﬁnitions ..............................................................................................................4-3

Factory defaults ..................................................................................................................4-4

Command/response table for SIS™ commands .....................................................................4-5

Command/response table for special function SIS™ commands ........................................4-7

Updating Firmware ...................................................................................................................4-8

Appendix A • Reference Material ....................................................................................... A-1

Specications ............................................................................................................................. A-2

PRELIMINARY

Part Numbers and Accessories ......................................................................................... A-5

Included parts .......................................................................................................................... A-5

Accessories ............................................................................................................................... A-5

Speaker accessories ................................................................................................................. A-6

Cable accessories ..................................................................................................................... A-6

Audio Block Diagram ............................................................................................................. A-7

Audio Reference Levels ........................................................................................................ A-8

All trademarks mentioned in this manual are the properties of their respective owners.

TOC-ii

68-1217-01

Rev. D

09 08

PVS 204SA • Table of Contents

PVS 240SA

Chapter One

Introduction

About this Manual

About the PVS 240SA

Application Diagrams

Introduction

About this Manual

This manual covers the installation, operation, and conguration of the Extron PVS 204SA PoleVault™ Switcher. Throughout the manual, this switcher is interchangeably referred to as the PVS 204SA, PVS switcher, PoleVault switcher, PVS, and switcher.

About the PVS 204SA

The Extron PVS 204SA is a four input, two output, twisted pair, audio and video

switcher with a built in audio ampliﬁer. This switcher is comprised of two

independent, built in switchers (a 2 x 1 RGB video and audio switcher and a 2x1 composite video and audio switcher), that allows the PVS 204SA to accept high resolution (RGB) video and audio, and composite video and audio signal inputs, along with a line level mono audio auxiliary/mix input. The PVS 204SA is part of the PoleVault System, a cost effective system with easy cable installation for transmission of video and audio signals, that is used in conjunction with the Extron PVT series of transmitters and Extron speakers.

The PVS 204SA can be easily installed at ceiling level using the Extron Pole Mount Kit (PMK 450) as part of the Extron PoleVault system.

The PVS switcher receives the video and audio signals sent from PVT transmitters, which can be located up to 100' (30 m) away. The signals can be sent over Extron Enhanced Skew-Free (STP), unsheilded twisted pair (UTP), or foil shielded twisted pair (FTP) cable.

The PVS switcher can be controlled from either the front panel buttons, an RS-232

control, an IR remote, or a MediaLink controller.

The PVS 204SA’s built-in 2-channel power amplier outputs up to 13 W on 4 ohm load per channel or 7 W with 8 ohm loads as stereo or dual mono audio. Volume control is made via the front panel, RS-232 , IR, or an Extron VCM control.

Various front panel controls allow the user to adjust the Aux/Mix volume

(independent from input gains, power ampliﬁer gain, and volume) and global control of the power amp level adjustments.

RS-232 control allows the user to adjust the individual channel gain, limiter on/off settings, loudness on/off settings, and bass and treble adjustments.

A dual DIP switch allows the user to switch between stereo and dual mono mode outputs, and to switch the high pass ﬁlter on or off.

™

A/V UTP cable, or any CAT 5, 5e, or 6 shielded twisted pair

1-2

TP cable advantages

Twisted pair cable is smaller, lighter, more ﬂexible, and less expensive than

coaxial cable. Termination of TP cable with RJ-45 connectors is simple, quick, and

economical. See chapter 2, “Installation”, “A/V input connections” section, for wiring details.

PVS 204SA Switcher • Introduction

For PVT transmitter installation and connection, consult the user’s manual

supplied with the transmitters.

Features

Twisted pair inputs — The switcher accepts two independent, high resolution RGB

video and audio signals and two composite video and audio signals, transmitted

on twisted pair cable from a source up to 100' (30 m) away.

Video output — The PVS switcher can switch between four inputs (two RGB and

two composite).

Aux/Mix input — The PVS switcher can mix a mono line level audio input with the

audio input from the video/audio source.

Ampliﬁed Audio output — The switcher allows user selectable stereo or dual

mono, 4 or 8 ohm audio outputs through the integrated audio amplier.

Executive Mode —

(executive mode) via the front panel or RS-232. An LED on the front panel indicates

executive mode status.

Control and conﬁguration — Firmware updates to the switcher can be made via

a front panel cong port. The switcher can also be congured via RS-232 and controlled via the front panel, RS-232, or wired IR.

Other features include:

• Amplier indication LED

• User selectable switching of input and status indication LED

• User selectable “single” or “separate” switcher modes

• Rear panel mounted captive screw connector for RS-232, MLC, or IR control

• Rear panel mounted captive screw connector for external volume control

To prevent unauthorized access the switcher panel can be locked

PVS 204SA Switcher • Introduction

1-3

Introduction, cont’d

AUX/MIX IN

DO NOT GROUND OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

12V

10V

POWER

12V 3A MAX

LISTED

17TT

AUDIO/VIDEO APPARATUS

RGB

VIDEO

RGB

VIDEO

PMK 450

Multi-product Pole Mount Kit

PVT CV D

1 Gang

PVT RGB D

1 Gang

PVT RGB D

1 Gang

AC for Projector

AC for PoleVault System

Ceiling Mounted AC Outlet

RGB and Audio Input

Video and Audio Input

(x2)

MLC 104 IP Plus

Projector on/off control Projector input switching Projector volume control 2 Gang (depth: 1.78”)

PCM 240

Projector Drop Ceiling Mount

PV SI 3C LP

Full Range Single Driver Ceiling Speakers

AUDIO IN

VIDEO IN

COMPUTER IN

AUDIO IN

COMPUTER IN

AUDIO IN

CONFIG

DISPLAY

VOLUME

OFF

TCP/IP

Network

PVS 204SA

PoleVault Switcher

Extron PoleVault System

UPB 25

Universal Projector Mounting Bracket

AC in

RS-232

PMP 6

Projector Mounting Pole

Comm Adapter (depending on projector type)

Video In

Video Out

Audio

Communication

Extron Cables & Notes

CAT 5 T568A cable - 50' (15 m)

Projector control cable - 50' (15 m)

MLC power and control cable - 50' (15 m)

18 AWG Speaker cable - 25' (7.5 m)

Composite Video cable - 3' (1 m)

VGA Video cable - 3' (1 m)

PoleVault Switcher power cable - 25' (7.5 m)

Projector power cord - not included

UTP network cable - not included

MIC IN

ACTIVE

MUTE

MLP 101 D

Mic to Line Preamplifier

Line Level

Audio

Application Diagrams

1-4

Figure 1-1 — Example of a typical application of the PVS 204SA and the PoleVault™ video/audio system with Decora® model PVT transmitters

PVS 204SA Switcher • Introduction

AUX/MIX IN

DO NOT GROUND OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

12V

10V

POWER

12V 3A MAX

LISTED

17TT

AUDIO/VIDEO

APPARATUS

RGB

VIDEO

RGB

VIDEO

PMK 450

Multi-product Pole Mount Kit

PVT CV D

1 Gang

PVT RGB D

1 Gang

PVT RGB D

1 Gang

AC for Projector

AC for PoleVault System

Ceiling Mounted AC Outlet

RGB and Audio Input

Video and Audio Input

(x2)

MLC 104 IP Plus

Projector on/off control Projector input switching Projector volume control 2 Gang (depth: 1.78”)

PCM 240

Projector Drop Ceiling Mount

PV SI 3C LP

Full Range Single Driver Ceiling Speakers

COMPUTER

AUDIO IN

TPS T RGB

CONFIG

DISPLAY

VOLUME

OFF

TCP/IP

Network

MIC IN

MLP 101 AAP

MUTE

ACTIVE

PVS 204SA

PoleVault Switcher

Extron PoleVault System

MLP 101 AAP

Mic to Line Preamplifier

UPB 25

Universal Projector Mounting Bracket

AC in

RS-232

PMP 6

Projector Mounting Pole

Comm Adapter (depending on projector type)

Video In

Video Out

Audio

Communication

Extron Cables & Notes

CAT 5 T568A cable - 50' (15 m)

Projector control cable - 50' (15 m)

MLC power and control cable - 50' (15 m)

18 AWG Speaker cable - 25' (7.5 m)

Composite Video cable - 3' (1 m)

VGA Video cable - 3' (1 m)

PoleVault Switcher power cable - 25' (7.5 m)

Projector power cord - not included

UTP network cable - not included

Line Level

Audio

VIDEO

TPS T CV

AUDIO IN

COMPUTER

AUDIO IN

TPS T RGB

Figure 1-2 — Example of a typical application of the PVS 204SA and the PoleVault video/audio system with AAP model PVT transmitters

PVS 204SA Switcher • Introduction

1-5

Introduction, cont’d

1-6

PVS 204SA Switcher • Introduction

PVS 240SA

Chapter Two

Installation

UL/Safety Guidelines

Mounting the Switcher

Rear Panel Features and Cabling

Speaker Conﬁguration

Labeling the A/V Inputs

Final Setup

PRELIMINARY

Installation

UL/Safety Guidelines

The Underwriters Laboratories (UL) guidelines listed below pertain to the safe

installation and operation of this switcher.

Important safety instructions

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves,

or other apparatus (including ampliﬁers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding type plug. A

polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not ﬁt into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at

plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories speciﬁed by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specied by the

manufacturer, or sold with the apparatus. When a cart is used, use caution

when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long

periods of time.

14. Refer all servicing to qualiﬁed service personnel. Servicing is required when

the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

2-2

PVS 204SA Switcher • Installation

Rear Plate

Pipe Collar & Set Screws (4)

Security Screw

AC Power Cord Access Slot

L R

AUX/MIX IN

DO NOT GROUND OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

12V

10V

POWER

12V 3A MAX

LISTED

17TT

AUDIO/VIDEO

APPARATUS

RGB

VIDEO

RGB

VIDEO

Bottom Plate

Filler Plate

Front Plate

Top Plate

Front (towards screen)

Mounting the Switcher

The PVS 204SA can be mounted on the Extron PMK 450 (Pole Mount Kit), which should be installed above the projector. The low prole of the PVS switcher and the PMK 450 allows them to be installed in tight spaces. To install the PVS 204SA

on the PMK, follow the steps shown in the instruction guide supplied with the

PMK 450. If the PMK 450 is already installed, do the following:

1. Remove the front, rear, and ﬁller plates and separate the top and bottom

plates of the PMK (see gure 2-1).

2. Placing the PVS 204SA on the PMK, align the two diagonally opposite

Do not install the rubber feet on the PVS 204SA when installing the device in

a PMK 450.

securing holes (located in the base of the switcher) over two suitable holes in the ﬂoor of the PMK.

PRELIMINARY

Figure 2-1 — Installing the PVS 204SA on the PMK 450

3. Pass two 4-40 x 3/16" screws up through the oor of the PMK into the holes in

the base of the switcher, and secure it in place using an Extron Tweeker or a

Phillips #1 screwdriver.

4. Install the power supply on the right rear of the PMK 450 bottom plate and

secure it using Velcro

5. Install any other desired devices on the PMK 450, following the installation

steps in the devices’ user manuals.

6. Lift up the plate (with the devices installed) to the pole, and connect the

twisted pair, audio, control, and power cables (see “Rear Panel Features and Cabling”, in this chapter, for details).

7. With all the cables connected, slide the lugs on the bottom plate into the

notches on the top plate and secure with screws.

8. Replace the front, rear, and ﬁller plates.

9. If installing the full PoleVault

the hardware, devices and cabling, referring where applicable to the instructions in the relevant user manuals. See pages 1-4 and 1-5 in chapter 1,

“Introduction,” for examples of PoleVault

™

system, continue installing the rest of

™

System applications.

PVS 204SA Switcher • Installation

2-3

Installation

L R

AUX/MIX IN

I N P U T S

O U T P U T S

RS-232 MLC/IR

DC VOL

4/8

Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

A B C

Rx IR 12V

10V

POWER

12V 3A MAX

LISTED

17TT

AUDIO/VIDEO

APPARATUS

RGB

VIDEO RGB

VIDEO

STEREO

DUAL MONO

HIGH PASS FILTER

OFF

32A

42B

Power Supply

Output Cord

Captive Screw

Connector

SECTION A–A

Ridges

Smooth

A A

Tie Wrap

(5 mm)

RGB

I N P U T S

Rear Panel Features and Cabling

Figure 2-2 — Features of the PVS 204SA Switcher rear panel

Power connection

DC power connector — Attach the supplied male captive screw connector to

the cord of the included power supply as shown in gure 2-3.

PRELIMINARY

Figure 2-3 — Wiring the orange captive screw power connector

When all other cables have been connected, plug the captive screw connector into the 2-pole female connector (

) to connect the switcher to the 12 VDC

power source. The front panel power LED ( ) lights while the PVS is receiving power.

Use only the supplied 12 V power supply for this switcher.

A/V input connections

B RGB video and audio inputs (“RGB”) — Each RGB input requires

the use of two twisted pair cables. Using the TP cables, connect one or two high resolution computer video and audio sources via PVT transmitters to these four RJ-45 female connectors.

The PoleVault

PVS 204SA switchers working with PVT transmitters.

2-4

The PVS 204SA can receive signals from PVT transmitters located up to

PVS 204SA Switcher • Installation

DO NOT connect to an MTP system. DO NOT connect to an Ethernet/LAN or data transmission system.

100 feet (30 m) away. The optimum distance is between 50 (15 m) and 75 feet (23 m). The minimum distance is 15 feet (5 m).

signal transmission method is speciﬁc for

Red +

Red –

H. sync +

Green –

6H. sync –

Blue +

Blue –

Wire Color

White-green

Green

White-orange

White-blue

Orange

White-brown

Brown

568A

Cable B

Green +

Blue

Cable A

V. sync +

V. sync –

+ 5 VDC

Audio L –

GND

Audio R +

Audio R –

Audio L +

RJ-45 Connector

12345678

Insert

Twisted

Pair Wires

Pins:

Side View

PVT RGB D

Input #2

PVT RGB D

Input #1

POWER

12V 3A MAX

I N P U T S

RGB

RGB Input Connectors on

Rear Panel of PVS 204SA

Cable from

PVT Output A

Cable from

PVT Output B

Cable from

PVT Output A

Cable from

PVT Output B

Rear Panel

VIDEO

RJ-45 termination must comply with the TIA/EIA T 568A or 568B wiring

standards for all connectors. The same standard MUST be used at both ends of all cables.

The RGB cables supplied with the PoleVault system are terminated to the TIA

568A standard, as shown in ﬁgure 2-4.

Figure 2-4 — Twisted pair RGB video and audio cable wiring.

Cable A Video carries the video signals and horizontal sync, and cable B carries

the audio signal, vertical sync information, and 5 VDC current from the PVS to power the PVT transmitters.

The ports on the rear of the PVS 204SA are color coded for input number

and signal type. To ensure correct cable identiﬁcation and connection during installation, a sheet of color coded cable labels is supplied. See “Labeling the A/V Inputs”, later in this chapter, for details on how to use these labels.

When connecting the TP cables to the PVS 204SA, take care not to cross-

connect the cables; connect input 1’s video signal to the RJ-45 port labeled 1A, and input 1’s audio signal to the RJ-45 port labeled 1B. Likewise, connect input 2‘s video signal to 2A, and the audio signal to 2B (see ﬁgure 2-5).

Figure 2-5 — Connect the correct transmitter output cables to the switcher inputs.

Composite video and audio inputs (”Video”) — Each composite

video input needs one TP cable. Using TP cable, connect up to two composite video and audio sources via PVT transmitters to these two RJ-45 female connectors labeled 3 and 4; each one is for video

and audio combined.

PVS 204SA Switcher • Installation

2-5

Installation, cont’d

Wire Color

White-green

Green

White-orange

White-blue

Orange

White-brown

Brown

568A

Blue

Composite Video and Audio Signal

Video +

Video –

+ 5 VDC

Audio L –

GND

Audio R +

Audio R –

Audio L +

12345678

RJ-45 Connector

Insert

Twisted

Pair Wires

Pins:

Side View

VIDEO

PVT CV D

Input #3

Cable from PVT Output

PVT CV D

Input #4

Rear Panel

Composite Video Input

Connectors on

Rear Panel of PVS 204SA

Cable from PVT Output

HIGH PASS FILTER

ON STEREO

DUAL MONO

OFF

RJ-45 termination must comply with the TIA/EIA T 568A or 568B wiring

standards for all connectors. The same standard MUST be used at both ends of all cables.

The composite video cables supplied with the PoleVault system are terminated

to the TIA 568A standard, as shown in ﬁgure 2-6.

Figure 2-6 — Twisted pair composite video and audio cable wiring.

When connecting the TP cables to the PVS 204SA, take care to connect input 3’s

cable to the RJ-45 port labeled 3, and input 4’s cable to the RJ-45 port labeled 4 (see ﬁgure 2-7).

PRELIMINARY

A/V output connections

2-6

PVS 204SA Switcher • Installation

Figure 2-7 — Connect the correct transmitter output cables to the switcher inputs.

RGB video output — Connect a VGA cable to this female

15-pin HD connector and to the projector for RGB video.

Composite (video) output — Connect a cable with an RCA

connector to this female RCA jack and to the projector for composite video.

DIP switch — One switch (

under 100 Hz to the amplier using a high pass lter. The other switch

) allows selection of the audio output mode (either stereo or dual mono):

(

High Pass Filter control — To turn the high pass

ﬁlter to on or off, set the switch to the desired position. Default setting is off.

Setting the DIP switch to on prevents signals less

than 100 Hz entering the ampliﬁer, whereas setting it to off allows those signals to pass to the ampliﬁer.

) allows the user to block or pass signals

Captive Screw

Connector Wire Stripping

(5 mm) MAX.

Balanced

Input

Unbalanced

Input

CAUTION

For unbalanced audio, connect the sleeve(s) to the ground. DO NOT connect the sleeve(s) to the negative (-) contact.

POWER

12V

0.2A MAX

LINE

OUTPUT

REMOTE

10V

VOL/MUTE

ONOFF ONOFF

PHANTOM

LOW CUT

MIC TO LINE

PREAMPLIFIER

MLP 101 D

MIC IN

ACTIVE

MUTE

MLP 101 D front and rear panels

Tip

Sleeve

Ring

AUX/MIX IN

NO Ground Here

Tip

Sleeve

AUX/MIX IN

PVS

AUX/MIX IN

+ Positive

Ground

Stereo and Dual Mono selection — To select stereo or dual mono audio

output, set the switch to the desired position. Dual mono sums left and right audio signals together and outputs the same signals on both audio output channels. Default setting is mono.

Aux/Mix input connection

For best results when speech is the primary audio, set this switch for dual mono

with the high pass ﬁlter set to on. If music is involved, set the switch to stereo with the high pass ﬁlter set to off.

Aux/Mix audio input — To mix an auxiliary, mono, line-

level audio signal (from a wireless microphone receiver, for example) with the selected input’s audio, connect the

cable from the mono source to this 3-pole captive screw

connector. The signal can be balanced or unbalanced.

Wire the supplied blue 3-pole male captive screw connector

as shown at right.

This audio input signal is present regardless of the selected input on the

switcher. The audio level is not affected by the program volume.

For wired microphones, connect an Extron MLP 101 microphone-toline preamplier to the Aux/Mix port on the PVS 204SA, to convert the

microphone output to line level. Follow the installation instructions in the

user manual supplied with the MLP 101 to connect the microphone. See gure 2-8 to wire the MLP to the switcher.

Figure 2-8 — Wiring an MLP 101 D to the PVS 204SA Aux/Mix connector

PVS 204SA Switcher • Installation

2-7

Installation, cont’d

RS-232/MLC/IR

ABC

PVS 204SA Switcher's rear panel RS-232/MLC/IR port

NOTE Connect a ground wire

between the MLC and the switcher.

MLC 104’s MLS and power ports

NOTE If you use cable that has a drain

wire, tie the drain wire to ground at both ends.

PVS 204SA Switcher Rear Panel

AUX/MIX IN

DO NOT GROUND

OR SHORT

SPEAKER OUTPUTS!

I N P U

T S

O U T P U T S

2B2A4

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

ABC

RxIR 12V

10V

POWER

12V 3A MAX

LISTED

17TT AUDIO/VIDEO APPARATUS

RGB

VIDEORGB

VIDEO

Tx Rx IR +12 V

MLC 104 front and side panels

RS-232

Projector

HIGH PASS FILTER

ON STEREO

DUAL MONO

OFF

RS-232

and power

RS-232 12V

MLS PWR

GROUND

+12V IN

Ground ( )

Transmit (Tx)

Receive (Rx)

Transmit (Tx)

Receive (Rx)

SCP

+12V OU T

PWR SNS

GROU ND

HOST/ CONFIG

LAN

PRESS TAB WITH

TWEEKER TO REMOVE

A B

A B E

SCP

COMM

MLS

RS-232

PWR

12V

PROJECTOR

RS-232/IR

Tx/I R

+12V IN

+12 VDC input

CONFIG

PROJECTOR

VOLUME

MLC 104 IP

VIDEO

AUX

VIDEO

IMAGE

MUTE

OFF

50 feet (15.2 m) maximum

RS-232 MLC/IR

A B C

Rx IR 12V

Control connection

RS-232/MLC/IR control port — The PVS switcher can be

controlled via an RS -232 connection directly from a host

computer, a control system, or a MediaLink Controller (MLC).

For IR remote control, connect an Extron IR Link to this port. RS-232 connection can be used to congure the PVS switcher.

Connect a cable between this port and an optional Extron MLC

MediaLink Controller or an optional IR Link IR signal repeater.

The MLC provides remote control of input switching and volume.

•

The IR Link accepts modulated IR signals from a remote control

•

(e.g. the Extron IR 452 remote) enabling the remote control to be used for

selecting the switcher inputs.

Wire the captive screw connector and connect it to a computer or control

system, an MLC, or an IR Link, as shown in gures 2-9 through 2-12.

PRELIMINARY

2-8

Figure 2-9 — Connecting an MLC 104 to the switcher

The PVS 204SA power supply can support a typical system, for example:

• a PVS 204SA

• 4 PVT transmitters

• 2 or 4 speakers (see “Speaker Conﬁguration” later in this chapter for details)

• an MLC 104 IP Plus with an IRCM DV+

• an MLP 101 D

• If an SCP 104 is used in the system, the MLC 104 Plus MUST have its own power supply.

• The PVS 204SA provides sufﬁcient power to run an MLC 104 IP or any MLC 52 RS model.

PVS 204SA Switcher • Installation

PVS 204SA Switcher’s rear panel RS-232/MLC/IR port

NOTE If you use cable that has a drain

wire, tie the drain wire to ground at both ends.

+12 V

ABC

IR in

+12 VDC

Ground ( )

PVS 204SA Switcher Rear Panel

AUX/MIX IN

DO NOT GROUND

OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

2B2A4

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

ABC

Rx IR 12V

10V

POWER

12V 3A MAX

LISTED

17TT AUDIO/VIDEO APPARATUS

RGB

VIDEORGB

VIDEO

Ground ( )

+12 VDC

50 feet (15.2 m) maximum

IR out

To Projector

F E D C B A

+12 V

B =

Gnd

A =

IR in

D =

IR Gnd

C =

IR out

F =

(Tx) Projector

E =

B/D

MLC 52 RS rear panel IR port

NOTE The MLC 52 must be

configured with a driver to be used with a PVS 204SA.

IR OUT

GND

IR IN

GND

+ 12V

MLC 52

PROJECTOR

VIDEO

OFF

MLC 52 RS front and rear panel

HIGH PASS FILTER

ON STEREO

DUAL MONO

OFF

VOL

NOTE An MLC 52 RS controller must be used for this configuration. The MLC 52 RS will

control the projector via RS-232, and the PVS 204SA by hardwired IR. An IR driver

or the PVS 204SA is available on the Extron website.

RS-232 port

of a computer or

control system

PVS 204SA Switcher’s rear panel RS-232/MLC/IR port

NOTE If you use cable that has a

drain wire, tie the drain wire to ground at both ends.

Tx RxIR +12V

ABC

RS-232/MLC/IR

Host Computer

Control System

Transmit (Tx)

Receive (Rx)

PVS 204SA Switcher Rear Panel

AUX/MIX IN

DO NOT GROUND

OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

2B2A4

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

ABC

Rx IR 12V

10V

POWER

12V 3A MAX

LISTED

17TT

AUDIO/VIDEO

APPARATUS

RGB

VIDEORGB

VIDEO

Ground ( )

Transmit (Tx)

Receive (Rx)

HIGH PASS FILTER

ON STEREO

DUAL MONO

OFF

NOTE Connect a ground wire

between the switcher and the computer or control system.

Figure 2-10 — Connecting an MLC 52 RS series controller

Connection of an MLC 52 VC follows the same setup as the MLC 52 (see

ﬁgure 2-10), with the exception that speaker volume can be controlled with the rotary potentiometer on the front panel of the MLC 52 VC.

Figure 2-11 — Connecting a computer or control system

PVS 204SA Switcher • Installation

2-9

Installation, cont’d

RS-232/MLC/IR

Rx IR

+12V

PVS 204SA Switcher’s rear panel RS-232/MLC/IR port

IR Link port

ABC

150 feet (45.7 m) maximum

+12 VDC

Ground ( )

ABCDE

IR (IR Link)

IR Link front and rear panels

IR 452

SIGNAL

DVD

PVS 204SA Switcher Rear Panel

AUX/MIX IN

DO NOT GROUND

OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

2B2A4

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

ABC

Rx IR 12V

10V

POWER

12V 3A MAX

LISTED

17TT AUDIO/VIDEO APPARATUS

RGB

VIDEORGB

VIDEO

HIGH PASS FILTER

ON STEREO

DUAL MONO

OFF

VOL/

MUTE

10V

MUTE

VOLUME

VCM 100 MAAP

DC VOL

VOL/MUTE

10 V

Ground

VCM 100 MAAP front and rear panels

PVS 204SA DC Volume port

Variable voltage or mute

DC VOL

VOL/MUTE

10V

10 V

variable voltage or mute

Ground

MLC 52VC front and rear panels

PVS 204SA DC Volume port

VOL/

MUTE

IR OUT

GND

IR IN

GND

+ 12V

+ 10V

MLC 52

PROJECTOR

OFF

AUTO IMAGE

DVD

VCR

VOLUME

DC VOL

VOL/MUTE

10 V

Figure 2-12 — Connecting an IR Link to the switcher

DC Volume control port (Vol/Mute) — This port connects an Extron

external volume control module, such as a VCM, or the MLC 52 VC to the PVS 204SA. The range is 0 to 10 V, where 0 V is mute and 10 V is maximum volume. When connected, the external volume control

module is the sole volume controller.

Do not control the PVS volume via RS-232 if this port is connected to

a VCM 100, a VC 50, or an MLC 52 VC. If a VCM is controlling the volume, an MLC should not be connected to the MLC/IR/RS-232 port.

PRELIMINARY

2-10

PVS 204SA Switcher • Installation

Connect the supplied, male, 3-pole captive screw connector to this port, wiring the connector as shown in gures 2-13 and 2-14.

Figure 2-13 — Wiring a VCM100 MAAP to the DC volume port

Figure 2-14 — Wiring an MLC 52 RS VC to the switcher’s DC volume port

2 Front Program Speakers

Program Speakers

Classroom Top View

4 Ceiling Speakers

Classroom Top View

Ceiling Speakers

L R

4/8 Ohms

AMPLIFIED OUTPUTS

Ampliﬁed Out — Wire and connect the supplied 4-pin 5 mm

connector to this port, marked “L” and “R” (left and right) for

4 or 8 ohm speaker output.

Speaker Conguration

Speaker arrangement examples

Ceiling and program speakers can be arranged several different ways.

Some general ideas for speaker placement are included below.

Do not tie both L and R outputs to each other and/or to ground.

Doing so will short out the outputs and damage the ampliﬁer.

The speaker setup covers two individual speakers of 8 ohm impedance or two

pairs of speakers in parallel where each channel drives a maximum output load of 4 ohms

The following factors affect the choice of speaker placement:

• Dimensions of the room

• Room acoustics

• Desired evenness of sound coverage

• Audience mobility (whether the audience will be seated or not)

• Ambient noise level

• Type of music or other audio source

Figure 2-15 — Examples of speaker layouts

PVS 204SA Switcher • Installation

2-11

Installation, cont’d

Dual Mono Output

Stereo Output

Stereo or Dual Mono Output using parallel speaker wiring

Stereo or Dual Mono Output using series speaker wiring

4 Ohm Load or 8 Ohm Load

4 Ohm Total Load4 Ohm Total Load

8 Ohm Total Load8 Ohm Total Load

Tw o 8 ohm speakers wired in parallel equal a 4 ohm load.

Tw o 4 ohm speakers wired in series equal an 8 ohm load.

4/8 Ohms

AMPLIFIED OUTPUTS

4/8 Ohms

AMPLIFIED OUTPUTS

4/8 Ohms

AMPLIFIED OUTPUTS

Mono –

Stereo R-

8 ohms

4 ohms

Mono +

Stereo R+

Mono –

Stereo L-

Mono +

Stereo L+

Stereo R–

Stereo R+

Stereo L–

4/8 Ohms

AMPLIFIED OUTPUTS

Stereo L+

Mono –

Mono +

Mono –

Mono +

8 ohms

Mono –

Stereo R-

Mono +

Stereo R+

4 ohms

Mono –

Stereo L-

Mono +

Stereo L+

Connecting speakers to the PVS 204SA

To obtain the correct impedance loading for your speciﬁc speaker system, follow the relevant setup as shown below.

PRELIMINARY

2-12

PVS 204SA Switcher • Installation

Figure 2-16 — Speaker impedance loading

RGB #1A

VIDEO #4

AUX/MIX IN

I N P U T S

O U

T P

T S

RS-232 MLC/IR

DC VOL

4/8

Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

ABC

Rx IR 12V

10V

POWER

12V 3A MAX

LISTED

17TT AUDIO/VIDEO APPARATUS

RGB

VIDEO RGB

VIDEO

32A

42B

STEREO

DUAL MONO

HIGH PASS FILTER

OFF

RGB #1A

Labeling the A/V Inputs

Labeling and connecting the A/V input cables

The RGB and composite video input ports on the rear of the PVS 204SA are color

coded to aid easy identiﬁcation of the input signal type. A sheet of corresponding

colored labels is supplied for the installer to label the cables running from the PVT

transmitters to the switcher. Once the labels are attached to the cables, the signal type transmitted on any cable can clearly be identiﬁed, enabling correct cable connection during installation.

To label the cables,

1. Peel off the label corresponding to the cable’s signal type (see the table below)

and afﬁx it close to one end of the cable.

Figure 2-17 — Wrap the label around the cable, colored part ﬁrst.

2. Repeat step 1 for the other end of the cable, using the same label type.

3. Using the correct label type, repeat steps 1 and 2 as necessary for all signal

Align and press the colored section of the label to the cable ﬁrst, then wrap the

clear section around the cable, allowing the signal type name to be easily read.

cables that are to be connected to the PVS 204SA.

Connect the colored coded cable to the corresponding color coded port.

Figure 2-18 — Connect the cables to the relevant input port.

Cable Input Signal Input Port # Background Color Text color

RGB (cable A) 1A Orange black RGB (cable B) 1B Orange w/stripe black RGB (cable A) 2A Yellow black RGB (cable B) 2A Yellow w/stripe black Video 3 Green white Video 4 Red white

PVS 204SA Switcher • Installation

2-13

Installation, cont’d

PVS 204SA

AUX/MIX IN

DO NOT GROUND

OR SHORT

SPEAKER OUTPUTS!

I N P U T S

O U T P U T S

2B2A4

RS-232 MLC/IR

DC VOL

4/8 Ohms

AMPLIFIED OUTPUTS

VOL/MUTE

ABC

Rx IR 12V

10V

POWER

12V 3A MAX

LISTED

17TT AUDIO/VIDEO APPARATUS

RGB

VIDEO RGB

VIDEO

DVD Player

PVT RGB D

COMPUTER IN

AUDIO IN

PVT CV D

AUDIO IN

VIDEO IN

MLC 104 IP+

RS-232

Projector

SCP

+12V O UT

PWR SN S

GROU ND

HOST/

CONFIG

LAN

PRESS TAB WITH

TWEEKER TO REMOVE

A B

A B E

SCP

COMM

MLS

RS-232

PWR

12V

PROJECTOR

RS-232/IR

Tx/I R

+12V I N

Laptop

Speaker

COMPUTER IN

AUDIO IN

RGB IN #1

Labeling the PVT Decora face plates

To help identify the input number and type of signal that

any PVT Decora transmitter sends to the PVS switcher

when the transmitter is installed, a series of small labels are supplied. A label identifying the transmitted signal type should be afﬁxed to each Decora faceplate (top or bottom) where it can easily be seen after installation. This aids the user to connect a device corresponding to the plate transmission signal type, allowing correct input

switching at the PVS 204SA.

Final Setup

With an MLC 104 IP Plus as a standard MLC controller in the PoleVault system package, your nal PVS 204SA switcher setup should look similar to the gure

below.

Ensure all connections are correctly made and secure.

PRELIMINARY

Refer to the MLC device user’s manual for full MLC installation,

conﬁguration, and operating details.

2-14

Figure 2-19 — MLC 104 IP Plus controller and other typical devices connected to the PVS switcher.

PVS 204SA Switcher • Installation

PVS 240SA

Chapter Three

Operation and Setup

Front Panel Features and Operation

Setting Switcher Modes

Auto Switching

Setting Up and Optimizing the Audio

Resetting the Switcher

Front Panel Security Lockout (Executive Mode)

Operation and Setup

PVS 204SA

POLEVAULT SWITCHER

INPUTS

1 2

RGB

MIN/MAX

CLIP

CONFIG

AUX/MIX LEVEL

3 4

VIDEO

AUTO SW

LOCKOUT

AUDIO

6 feet

Sleeve (Gnd)

Ring

Tip

9-pin D Connection TRS Plug

Pin 2 Computer's RX line Tip Pin 3 Computer's TX line Ring Pin 5 Computer's signal ground Sleeve

Front Panel Features and Operation

Figure 3-1 — Front panel features

Power indicator LED — When lit, this green LED indicates that the switcher

has power supplied to it.

Auto switching indicator LED — When lit, this green LED indicates that the

auto switching is turned on. See page 3-4 for instructions on how to turn auto switching on and off.

Lockout indicator LED — This red LED indicates the lockout status

(executive mode) of the front panel controls (on or off). See page 3-8 for details on how to lock and unlock the front panel.

PRELIMINARY

Input selection buttons and indicator LEDs — Press one of these buttons to

select the desired audio and video input. The corresponding green LED lights

and remains lit while the input is selected. These buttons are also used to conﬁgure the switcher. See “Setting Switcher Modes”, later in this chapter.

Input buttons 1 and 2 and their associated LEDs are for RGB video and audio

input, and buttons 3 and 4 (and their associated LEDs) are for composite video and audio input.

Conﬁguration port — This 2.5 mm port (jack) can be used to congure the

PVS 204SA during setup via RS-232, and has the same RS-232 protocol as the rear panel RS-232/MLC/IR port. Use the optional 2.5 mm conguration

cable, part # 70-335-01 (shown below), for connection to your PC’s serial port.

RS-232 protocol:

• 9600 baud • 1 stop bit • no parity • 8 data bits • no ﬂow control

3-2

PVS 204SA Switcher • Operation and Setup

Figure 3-2 — Front 2.5 mm port conﬁguration cable

Extron recommends using this port to upload ﬁrmware, where necessary.

INPUTS

RGB

VIDEO

Press and hold buttons 1 and 3

simultaneously for 4 seconds.

All input selection LEDs blink twice

to indicate that single switcher mode

has been enabled. Release the buttons.

INPUTS

RGB

VIDEO

One LED remains lit.

INPUTS

RGB

VIDEO

Min/Max LED — This red LED indicates when the range limits for the power

ampliﬁer level, Aux/Mix volume, or input gain level have been reached. See “Setting Up and Optimizing the Audio”, later in this chapter, for details. It lights as follows:

• When setting up input levels

• When the PVS reaches the min./max. amplier level

• When the PVS reaches the min./max. Aux/Mix level

Aux/Mix level encoder — This recessed rotary encoder allows front panel

adjustments specic to the Aux/Mix input level. The encoder has 16 positions per revolution, with each position equivalent to a 1 dB step (-18 dB to +24 dB

range).

Power amp level adjustment encoder (“Level”) — This recessed rotary

encoder allows front panel adjustment to all inputs (global) or, when used in conjunction with any selected input button, allows individual channel gain

adjustment. The encoder has 16 positions per revolution, with each position equivalent to a 1 dB step (-10 dB to +10 dB range).

Clip LED — This red LED lights when the output amplier is clipping.

To reduce the risk of damaging equipment, turn the power amp level down

(counterclockwise) when this LED is lit.

Setting Switcher Modes

The PVS 204SA has two selectable switcher modes: single switcher and separate

switcher. The default setting is single switcher mode.

Single switcher mode

This mode makes the PVS function as a 4x1 switcher. In single switcher mode, the RGB video output is inactive when composite video input is selected, and the composite video output is inactive when RGB video input is selected. Either RGB

video OR composite video is output to the projector or display device, depending on which signal format is selected.

Separate switcher mode

In this mode, both signal formats (RGB and composite video) are active at the same time, allowing RGB video AND composite video to be output to the projector or display device. The two modes can be toggled by front panel or RS-232. For details on RS-232 control, see chapter 4, “Serial Communication”.

Setting the single switcher mode via the front panel

1. Press and hold input selection buttons 1 and 3 simultaneously for 4 seconds

2. Release the buttons. The switcher has enabled single switcher mode and only

The switcher should be set to single switcher mode if an MLC is connected.

(see gure 3-3). All the input selection LEDs blink twice.

one LED remains lit.

PRELIMINARY

Figure 3-3 — Setting single switcher mode via the front panel

PVS 204SA Switcher • Operation and Setup

3-3

Operation and Setup, cont’d

INPUTS

RGB

VIDEO

Press and hold buttons 1 and 3

simultaneously for 4 seconds.

All input selection LEDs blink once to indicate that separate switcher mode has been enabled. Release the buttons.

INPUTS

RGB

VIDEO

Tw o LEDs remain lit, one

for RGB, one for composite video.

INPUTS

RGB

VIDEO

AUTO SW

LOCKOUT

INPUTS

RGB

VIDEO

Press and release buttons 1 and 2

simultaneously.

The auto switching LED lights to indicate that

input auto switching mode has been enabled.

INPUTS

RGB

VIDEO

Setting the separate switcher mode via the front panel

1. Press and hold input selection buttons 1 and 3 simultaneously for 4 seconds (see gure 3-4). All the input selection LEDs blink once.

2. Release the buttons. The switcher has enabled separate switcher mode and

two LEDs remain lit (one for RGB format, one for composite video format).

Figure 3-4 — Setting separate switcher mode via the front panel

Auto Switching

The PVS 204SA has an auto switching feature in single switcher mode only, that

detects which input has an active sync signal and automatically switches to that signal.

In single switcher mode, the auto input switching follows the highest numbered

active input, regardless of the signal format (RGB or composite video). For example, if input #2 (RGB) is currently active, and then #4 (composite video) becomes active, the input automatically switches to #4, regardless of format. In this example, the output signal changes from RGB to composite video.

The PVS 204SA auto switching can be switched on or off from the front panel or via RS-232.

PRELIMINARY

Auto switching is available only in single switcher mode. If separate switching

mode is selected, auto switching is automatically disabled.

Whenever an input changes, the switcher sends an unsolicited response via

RS-232 to the controller, alerting the controller of a possible need to change the projector input command.

Setting the input auto switching mode via the front panel

1. Press and release input selection buttons 1 and 2 simultaneously (see gure 3-5). The input auto switching LED (labeled “Auto SW”) indicates

the switching mode status (lit when enabled).

Figure 3-5 — Setting input auto switching mode via the front panel

3-4

PVS 204SA Switcher • Operation and Setup

Setting Up and Optimizing the Audio

The following steps ensure optimal sound is achieved by conﬁguring the

PVS 204SA properly. For each step, refer to the sections indicated for more

information.

Steps for optimizing the audio

1. Ensure all the settings are at default. These are the settings the PVS has upon

initial power up. The default settings are as shown below.

• Volume is set at 50%.

• Bass and treble are set at 0.

• Power Amplier level is set to 50% (default level is 0 dB).

• Loudness control is set to Off.

2. Ensure that the PVT transmitters are connected to the PVS and that there

3. Ensure a set of speakers are connected to the PVS 204SA. See chapter 2,

4. Slowly adjust the volume to 100% via RS-232, by having the MLC increase

5. Adjust the input sensitivity for one input through the front panel or by

6. When adjustments to all four inputs’ sensitivity settings have been made,

7. Fine tune the audio by making adjustments to the bass, treble, and loudness

Ampliﬁer level and volume level are not the same adjustments. Volume can

only be adjusted by RS-232 or with a potentiometer connected to the rear panel

port labeled “DC Vol”. Ampliﬁer level is adjusted via the front panel encoder.

is an audio input source present at each of the transmitters. Refer to the transmitters’ user’s manual for installation/connection information.

“Installation”, “Speaker Conﬁguration” section, for details.

the volume, or by a potentiometer connected to the DC Volume port on the rear panel. If an MLC 104 IP Plus is connected to the PVS, simply rotate the

volume knob clockwise until it is at full volume.

RS-232 to a level just below where audio input is clipped. See the sections

“Individual channel input sensitivity control” and “Clipping indicator”, later in this chapter, for details. Repeat for all four inputs.

Adjusting input sensitivity for all inputs ensures that all inputs are at the same

level, and at the highest level possible before clipping occurs. Step 5 ensures that when the volume is at 100%, the audio signal will not clip.

adjust the ampliﬁer level. Increase or decrease the ampliﬁer level very slowly by turning the front panel level encoder counterclockwise until the desired level is reached.

If the volume is at 100% through the MLC and the output on the speakers is too

loud, reducing the amp level using the front panel encoder is recommended. This ensures that the volume will not be too loud, even when set at 100%.

until the desired settings are reached. See “Bass, treble, and loudness control”, later in this chapter.

PRELIMINARY

PVS 204SA Switcher • Operation and Setup

3-5

Operation and Setup, cont’d

MIN/MAX CLIP

AUX/MIX LEVEL

AUDIO

This LED lights solid when maximum volume

or level is attained.

Gain control

Individual channel input sensitivity control

Individual channel input gain control adjustments are made by rotating the encoder while pressing in the selected input button. The adjustment range is -18 dB to

+24 dB, with the default set at 0 dB.

PRELIMINARY

Adjusting input sensitivity for all inputs ensures that all inputs are at the same

level, and at the highest level possible before clipping occurs.

Individual channel input gain levels either adds to or subtracts from the overall

(global) power ampliﬁer gain level per channel.

Front panel input sensitivity adjustment

To make sure the right input sensitivity is attained, do the following:

1. Press and hold the selected input button for 3 seconds; the input’s LED blinks.

2. While still pressing the input button, rotate the level encoder until the clip

3. When the minimum (-18 dB) or the maximum (+24 dB) is reached, the

Upon initial power up of the switcher, the ampliﬁer level is automatically

adjusted to 50% (0 dB).

LED blinks (see “Clipping indicator” section, on the next page), then rotate it back down until the blinking ceases.

Having the audio level beyond the point at which the clip LED ﬂashes

results in a distorted output signal (clipping).

Min/Max LED (see gure 3-6) lights red and ashes for approximately

0.3 seconds.

3-6

Figure 3-6 — Front panel audio Min/Max LED and recessed encoders

Individual gain adjustment can also be made by RS-232 control as shown in

4. Repeat steps 1 through 3 for the other inputs as desired.

If the setting is left at the extreme minimum or maximum, the LED stays on,

then extinguishes after approximately a quarter of a second.

chapter 4, “Serial Communication”.

Amplier level control

Ampliﬁer level control is adjusted via the recessed power ampliﬁer level encoder

(potentiometer) marked “Level” on the front panel. The encoder has 20 detents (steps) per revolution, each step making a 1 dB change. The adjustment range is

-10 dB to +10 dB with the default set at 0 dB. To make adjustments, use a Tweeker

or other small screwdriver to rotate the encoder as desired.

When the minimum (-10 dB) or the maximum (+10 dB) is reached, the

Min/Max LED (see ﬁgure 3-6) lights red and ﬂashes twice, at approximately a 0.3 second interval. If the setting is left at the extreme minimum or maximum, the LED stays on, then extinguishes after approximately a quarter of a second.

PVS 204SA Switcher • Operation and Setup

MIN/MAX CLIP

AUX/MIX LEVEL

AUDIO

This LED flashes when the amplifier output is clipping.

Clipping indicator

The clipping LED is a real time indicator of when the amplier is clipping. It ashes red when clipping is taking place (see gure 3-7).

Figure 3-7 — Front Panel audio clipping indicator LED and recessed encoders

To reduce the risk of damage to the speaker, reduce the ampliﬁer level by turning

the encoder counterclockwise until the Clip LED turns off.

Bass, treble, and loudness control

For optimum audio quality, the audio input levels and the bass, treble, and loudness controls must all be set up properly. Input audio levels may need to be adjusted depending on the variation of the output levels from different source devices.

Bass and treble should be adjusted once the input and output levels have been adjusted. These are adjusted by RS-232 control only, with a range from -10 dB to +10 dB. By default the bass and treble have been set at 0 dB. See chapter 4, “Serial

Communication”, for details on RS-232 control.

The loudness on/off (default off) switch and the clip limiter on/off (default off)

function are also controlled by RS-232.

By default these levels are set for the consumer product level of -10 dBV.

Aux/Mix control

The Aux/Mix input is line level mono. It is divided into two matching channels and then summed with the main left and right channel audio inputs. Aux/Mix volume is independent of other input gains, power amp gain, and volume. The

recessed encoder has 20 detents (steps) per revolution, each step making 1 dB change. The Aux/mix range is from -18 dB to +24 dB, default is 0 dB.

When the minimum (-18 dB) or the maximum (+24 dB) is reached, the min/max

LED (see ﬁgure 3-6) ﬂashes red.

PRELIMINARY

Resetting the Switcher

The switcher can be reset to the factory defaults via the front panel or RS-232.

To reset the switcher via the front panel, follow these steps.

1. Unplug the switcher from the power source.

2. Press and hold input selection button 1 while reapplying power to the

switcher. All the input selection LEDs blink for 1 second while the switcher is reset.

For details on RS-232 control, see chapter 4, “Serial Communication”.

PVS 204SA Switcher • Operation and Setup

3-7

Operation and Setup, cont’d

INPUTS

RGB

VIDEO

Press and hold buttons 1 and 4

simultaneously for 4 seconds.

The Lockout LED and the Input #1 LED blink once to

indicate that executive mode has been enabled/disabled.

Release the buttons.

INPUTS

RGB

VIDEO

AUTO SW

LOCKOUT

Front Panel Security Lockout (Executive Mode)

To prevent accidental or unauthorized changes to settings, the PVS switcher has

a front panel security lockout (executive mode) that limits users’ access to front

panel controls. When the executive mode is active, all functions are locked, and a red lockout LED (next to the power LED) lights to indicate that executive mode is on. When a button is pressed (or an encoder turned) during lockout mode, the associated LED blinks three times at approximately 0.3 second intervals to indicate

lockout.

To turn executive mode on or off via the front panel:

1. Press and hold input selection buttons 1 and 4 simultaneously for 4 seconds (see gure 3-8).

2. Release the buttons when the input selection #1 LED and the Lockout LED

blink once. The switcher has enabled or disabled the executive mode.

PRELIMINARY

Figure 3-8 — Setting the executive mode via the front panel

The lockout LED lights red when the executive mode is on.

This mode can also be turned on or off through RS-232 control. For details on RS-232 control, see chapter 4, “Serial Communication”.

3-8

PVS 204SA Switcher • Operation and Setup

PVS 204SA

Chapter Four

Serial Communication

RS-232 Programmer’s Guide

Updating Firmware

Serial Communication

6 feet

Sleeve (Gnd)

Ring

Tip

9-pin D Connection TRS Plug

Pin 2 Computer's RX line Tip Pin 3 Computer's TX line Ring Pin 5 Computer's signal ground Sleeve

RS-232/MLC/IR Tx

Rx IR

+12V

CED

(A) Transmit (Tx) (B) Receive (Rx) (C) IR in

(E) +12 VDC out

(D) Ground ( )

The PVS 204SA switcher can be remotely set up and controlled via a host

computer or other device (such as a control system) attached to the rear panel

RS-232/MLC/IR port. Alternatively, the switcher can be controlled by an optional MediaLink Controller (MLC) (connected to the same port) or by an RS-232 device acting through the MLC. The control device (host) can use either Extron’s Simple

Instruction Set (SIS

(GC2) program for Windows. For details on use and setup

of a system that includes a MediaLink Controller, refer to the MediaLink Controller user’s manual. Switcher protocol:

• 9600 baud • 1 stop bit • no parity • no ow control

RS-232/MLC/IR connector pin assignments:

™

) commands or the Global Congurator

PRELIMINARY

Conﬁguration can also be completed by

connecting a 2.5 mm stereo mini cable (part # 70-335-01) to the 2.5 mm jack (port) on the front panel. This port has the same protocol as the RS-232 connector on the rear panel.

Figure 4-1 — Pin out diagram for 2.5 mm mini cable TRS plug when connecting to the front panel Conﬁg port

Firmware updates can be made only via the front panel Conﬁg port.

RS-232 Programmer’s Guide

Host-to-PVS communications

SIS commands consist of one or more characters per ﬁeld. No special characters are

required to begin or end a command sequence. When the PVS switcher determines

that a command is valid, it executes the command and sends a response to the host device. All responses from the switcher to the host end with a carriage return and a line feed (CR/LF = ]), which signals the end of the response character string. A string is one or more characters.

PVS-initiated messages

4-2

PVS 204SA • Serial Communication

When a local event such as a front panel selection or adjustment takes place, the PVS responds by sending a message to the host. No response is required from the host. The PVS-initiated messages are listed here (underlined).

ﬁrmware version number. Chn X! ] (where X! is the input number)

The PVS sends this response when an input is switched.

ASCII to HEX Conversion Ta ble

•

Error responses

When the PVS switcher receives a valid SIS command, it executes the command and sends a response to the host device. If the PVS is unable to execute the

command because the command is invalid or it contains invalid parameters, it returns an error response to the host.

The error response codes and their descriptions are as follows:

E01 – Invalid input channel number (too large) E06 – Invalid channel change E10 – Invalid command E13 – Invalid value (too large) E14 – Invalid command for this conguration

Using the command/response tables

The command/response tables in this chapter list valid command ASCII codes, the

PVS’s responses to the host, and a description of the command’s function or the results of executing the command. Upper and lower case characters may be used

interchangeably in the command ﬁeld unless otherwise speciﬁed (setting gain/ attenuation, for example).

The ASCII to hexadecimal (HEX) conversion table below is for use with the

command/response tables.

ASCII to Hex conversion table

Symbol denitions

] = CR/LF (carriage return/line feed) (hex 0D 0A) } = CR (carriage return)

E = Escape key X! = Specic input number (0 through 4 and 7)

0 = all output mute, both audio and video 1 and 2 = RGB inputs (also 1 and 2 in RGB/VGA group) 3 and 4 = composite video inputs in single switch mode (In separate switcher mode

composite video inputs are identiﬁed as 1 and 2) 7 = Aux/Mix input

X@ = Pre-amp mode

2 = Stereo 1 = Dual Mono

X# = Status

0 = Off 1 = On

PRELIMINARY

PVS 204SA • Serial Communication

4-3

Serial Communication, cont’d

PRELIMINARY

X$ = 0 – 14, bass and treble adjustment range

(+/- 10.5 dB: 1.5 dB increments/decrements), default = 7 = 0 dB Value (dB) 0 -10.5 1 -9 2 -7.5 3 -6 4 -4.5 5 -3 6 -1.5 7 0 8 +1.5 9 +3 10 +4.5 11 +6 12 +7.5 13 +9 14 +10.5

X% = -10.5 to +10.5, bass and treble, readout in dB X^ = 0 – 100, volume, default = 50 X& = 0 – 24, input gain adjustment range, default = 0, in dB X* = 1 – 42, input attenuation adjustment range, in dB X( = -18 to + 24, input gain and attenuation readout, in dB X1) = -10 through +10, power amp gain readout, in dB X1! = Status

1 = single mode

2 = separate switcher mode

X1@ = 0 thru 20, power amp attenuation adjustment range,

(where 0 = -10 dB, 20 = + 10 dB, in 1 dB increments/decrements)

X1# = Status

0 = not present/malfunction 1 = present/OK

X1$ = Internal temperature X1% = Group

1 = RGB/VGA 2 = composite video/vid

X2! = Version (X.XX) X2@ = RGB delay in 0.5 second steps;

0 = 0 seconds, 1 = 0.5 seconds, ...10 = 5.0 seconds

4-4

Factory defaults

Input Audio Gain X& = 0

Power Amp Gain

Volume

Bass Level

Treble Level

Switcher Mode

Audio Output

Clip Limiter

Loudness

PVS 204SA • Serial Communication

X1) = 0 X^ = 50 X$ = 7 X$ = 7 X1! = 1 X@ = 2 X# = 0 X# = 0

Command/response table for SIS commands

Command ASCII Command Response Additional description

(host to switcher) (switcher to host)

Input selection

Select an input (video and audio) X! ! Chn X! ] (single sw. mode) Select input X! (video and audio).

Example: 2! Chn2 ] (single sw. mode) Select input 2.

Select an input (video and audio) X! * X1% ! Chn X1% * X! ! ] (sep. sw. mode) Select input X!

Example: 1*2! Chn1*2 ] (sep. sw. mode) Select input 1 of the composite

video group.

Select an audio input X! $ Aud X! ] Select input X! audio only. Select a video input (single sw. mode) X! & Vid X! ] Select input X! video only. Select a video input (sep sw. mode) X1% * X! & Vid X1% * X! ] Select input X! video in group

X1% only.

Audio gain/attenuation (per input)

N The set gain (G) and attenuation (g) are case sensitive.

Set a speciﬁc input’s gain. X!*X& G InX! Aud=X( ] Set a single input’s gain (in dB).

Example: 2*9G In2 Aud=+09 ] Set input 2’s gain to +9 dB. Set a speciﬁc input’s attenuation

Example: 1*12g In1 Aud=-12 ] Set attenuation to -12 dB.

N Aux/Mix input is input 7.

Increment a speciﬁc input’s gain X!*+G In X! Aud= X( ] Increase an input’s gain by 1 dB. Decrement a speciﬁc input’s gain X!*-G In X! Aud= X( ] Decrease an input’s gain by 1 dB. View a specic input’s gain X!*G In X! Aud= X( ] Show an input’s audio level. Set the current input’s gain X& G In X! Aud= X( ] Set the current input’s gain (in dB). Set the current input’s attenuation X* g In X! Aud= X( ] Set the current attenuation

Increment the current input’s gain +G In X! Aud= X( ] Increase the gain by 1 dB. Decrement the current input’s gain -G In X! Aud= X( ] Decrease the gain by 1 dB. View the current input’s audio gain G In X! Aud= X( ] Show the audio level.

X!* X* g In X! Aud= X( ] Set an input’s attenuation (in dB).

(in dB).

Audio treble adjustment (applies to inputs 1-4)

N Treble and bass are strictly global commands. They will only adjust twisted pair audio signals, not Aux/Mix signals.

Set the treble level X$ > Trb=X% ] Set the global treble level.

Example: 2> Trb=-7.5 ] Set treble to -7.5 dB. Increment the treble level + > Trb=X% ] Increase the treble by 1.5 dB. Decrement the treble level – > Trb=X% ] Decrease the treble by 1.5 dB. View the treble level > Trb=X% ] Show the current treble level.

(composite video).

PRELIMINARY

Audio bass adjustment (applies to inputs 1-4)

N Treble and bass are strictly global commands. They will adjust only twisted pair audio signals, not Aux/Mix signals.

Set the bass level X$ < Bas=X% ] Set the global bass level.

Example: 10< Bas=+4.5 ] Set the bass to +4.5 dB. Increment the bass level + < Bas=X% ] Increase the bass by 1.5 dB. Decrement the bass level – < Bas=X% ] Decrease the bass by 1.5 dB. View the bass level < Bas=X% ] Show the current bass level.

Audio mute

Mute on 1Z Amt X# ] Mute audio output. Mute off 0Z Amt X# ] Unmute audio output. View the audio mute status Z Amt X# ] Show the status of audio mute

0= off, 1 = on.

PVS 204SA • Serial Communication

4-5

PRELIMINARY

Vid • Aud • Vol

X1 X1

Video input # X1

is selected/active

Audio input

# X1 is

selected/active

Audio volume status

(Single sw mode)

Switcher mode status

Vga • Vid* • Aud* • Vol

(Sep sw mode)

RGB input # X1

is selected/active

Video input

# X1 is

selected/active

Audio volume status

Audio input

# X1 is

selected/active

Switcher mode status

Serial Communication, cont’d

Command/response table for SIS commands (continued)

Command ASCII Command Response Additional description

(host to switcher) (switcher to host)

Volume adjustment

Set the overall output volume X^ V Vol X^ ] Specify the volume (0-100) for

the audio output.

Example: 27V Vol027 ] Set volume to 27. Increment the volume +V Vol X^ ] Increase audio output. Decrement the volume -V Vol X^ ] Decrease audio output. View the volume level V Vol X^ ] Show the output volume.

Status commands

These commands allow you to view the status of the clip indicator between adjustments to the audio input levels, the

Volume Control Module status, the high pass lter status, and the internal temperature of the device.

View the clip (max) status 3S Sts3*X# ] View the VCM present status 40S Sts40*X1# ] View the high pass lter status 41S Sts41*X# ] View the internal temperature (ºC) 20S Sts20*X1$ ]

Front panel security lockout modes (executive modes)

Disable executive mode (unlock) 0X Exe X# ] Adjustments and selections can

be made from the front panel.

Enable executive mode 1 (lock) 1X Exe X# ] Lock front panel input selection

buttons; select inputs via RS-232

or IR remote control only. Only volume adjustment is available via the front panel. This command is equivalent to pressing and holding front

panel buttons 1 and 4.

View the executive mode status X Exe X# ] Show executive mode status.

Example: X Exe0 ] Executive mode is off

(unlocked).

Firmware version, part number & information requests

Query ﬁrmware version number Q X2! ] Show the switcher’s ﬁrmware

Request the part number N N60-800-01 ] Show the switcher’s part #. Request model name 1I PVS 204SA ] Request general info I or 0I (see below ) Show the switcher’s status.

(single switcher mode)

(separate switcher mode)

Upload rmware

Upload E Upload ] Go ] The switcher will start upload-

Upl ] The ﬁrmware was successfully

4-6

PVS 204SA • Serial Communication

version.

ing ﬁrmware code into its memory.

loaded into the switcher.

Command/response table for special function SIS commands

The syntax for setting a special function is __ * X? #, where __ is the function number and X? is the value. To view a function’s setting, use __#, where __ is the function number. In the following table the values of the

X? variable are different for each command/function. These values are given in the right-most column.

Command ASCII Command Response X? values

(host to switcher) (switcher to host) and additional descriptions

Zap (reset to default settings)

Zap all PVS settings/memories E zXXX ] ZapXXX ] Reset everything (all settings

and adjustments) to the factory defaults.

Delay times

Set the RGB delay 3 * X2@ # RGBDly*X2@ ] 0 = 0.0 seconds (default),

1 = 0.5 seconds, 2 = 1.0 seconds,...,

in ½ second steps up to

10 = 5.0 seconds.

Example: 3*7# RGBDly*07] Set a 3.5 second RGB delay.

View the RGB delay 3# RGBDly*X2@ ]

Audio output mode

View the audio output mode status 18# PreAmpMod* X@ ] View the audio outputs

(1 = dual mono, 2 = stereo).

N This command indicates whether the Audio Output Mode DIP switch on the rear panel of the PVS 204SA is set to

Stereo mode or Dual Mono.

Loudness control

Set the loudness to off 29 * 0 # Loudness*0 ] Set the loudness to on 29 * 1 # Loudness*1 ] View the loudness control 29 # Loudness*X# ] 0 = Off, 1 = On

Switcher mode selection

N Audio follows the last video/RGB selection in Separate Switcher mode.

Set to single switcher mode 1 * 1 # SwMode*1 ]

Set to separate switcher mode 1 * 2 # SwMode*2 ] View the switcher mode 1 # SwMode*X1! ] 1 = single, 2 = separate

Auto Switching selection

Set auto switching to on 72 * 1 # Asw*1 ] Set auto switching to off 72 * 0 # Asw*0 ] View the auto switching setting 72 # Asw*X# ] 0 = off, 1 = on

Power Amp Gain/Attenuation

Set the attenuation (-dB) 56 * X1@ # AmpLimit*X1) ] X1@ = 0-20 power amp range View the input gain 56 # AmpLimit*X1) ] X1) = -10 to +10 dB (in 1 db

increments/decrements)

Clip Limiter switch control

Set the Clip Limiter switch to off 59 * 0 # ClipLimit*0 ] Set the Clip Limiter switch to on 59 * 1 ClipLimit*1 ] View the Clip Limiter control 59 # ClipLimit*X# ] 0 = off, 1 = on

PRELIMINARY

PVS 204SA • Serial Communication

4-7

PRELIMINARY

Serial Communication, cont’d

Updating Firmware

If the need arises, you can update the PVS’s rmware without taking the unit out of

service. Follow the directions below. Check the Extron Web (www.extron.com) site for ﬁrmware-related documents,

instructions, patch ﬁles, and new ﬁrmware ﬁles before loading new ﬁrmware

into the switcher. Extron recommends that you read the rmware release notes

(available from the Web site www.extron.com) before beginning the ﬁrmware update.

This procedure must be performed using a PC, with the PC’s RS-232 port directly cabled to the PVS’s front panel Cong port.

N Each time you replace existing ﬁrmware, the switcher is reset to the factory

default settings.

1. Visit the Extron Web site (www.extron.com) and download the Firmware

Loader le (FWLoader.exe) to your PC. Write down the lename and location

for later use.

2. Locate (on the Web site) the appropriate rmware le (PVS 204SA) you want

to update. It has a lename ending in .s19 (PVS204_Vxxx.s19), where Vxxx indicates the version number (x.xx). Download the rmware from the Web

site. The program automatically stores the ﬁrmware ﬁle on the PC in

C:\Program Files\Extron Electronics\Firmware (a folder specic to that version). Write down the lename and location for later use.

3. Connect a 2.5 mm conguration cable (Extron part # 70-335-01) between the

4. On the PC, select Start > All Programs > Extron Electronics > Firmware Loader

5. Select the Com port and Baud rate. Click OK. The PVS 204SA should be

The ﬁrmware update ﬁle must have a ﬁlename extension of .s19. If the ﬁle

does not have that extension, it could cause the unit to stop functioning.

front panel Cong port of the PVS and the serial (RS-232) port of the PC, and power up the PVS and PC. See chapter 3, “Operation and Setup”, “Front

Panel Features and Operation” section, for details.

(folder)> Firmware Loader, and start the program.

detected automatically.

4-8

PVS 204SA • Serial Communication

6. When the browser window opens, click Browse to locate and select the

ﬁrmware ﬁle.

7. Select the ﬁrmware ﬁle and click Open to open the ﬁle.

8. Click Upload to upload the rmware le into the PVS 204SA.

PRELIMINARY

PVS 204SA • Serial Communication

4-9

Serial Communication, cont’d

9. Wait until the status bar indicates completion. The note “Transfer Complete!”

is shown and the unit resets itself.

10. Click Exit to exit the program upon completion.

PRELIMINARY

4-10

PVS 204SA • Serial Communication

Appendix A

Reference Material

Speciﬁcations

Part Numbers and Accessories

Audio Block Diagram

Audio Reference Levels

Reference Material

Specications

PRELIMINARY

Where indicated by “†”, the relevant speciﬁcation is given with the PVS operating as

part of a system with proprietary Extron PVT transmitters for this product.

Video — RGB

Gain ................................................ Unity

Crosstalk ........................................ -70 dB @ 5 MHz

Switching speed ............................ 1 ms (max.) from front panel, 1-2 seconds from remote panel

CMRR ............................................. -90 dB @ 100 Hz, -70 dB @ 10 MHz

†

Video input — RGB

Number/signal type ..................... 2 VGA-UXGA RGBHV, RGBS

Connectors ..................................... 2 pairs female RJ-45 (See chapter 2, “Installation”, “A/V input connections”

section, for pin conﬁgurations.)

Nominal level ................................ 0.7 Vp-p for RGB

Minimum/maximum levels ........ Analog: 0.3 V to 1.5 Vp-p with no offset

Impedance ..................................... 75 ohms

Horizontal frequency .................... 15 kHz to 145 kHz

Vertical frequency .......................... 30 Hz to 170 Hz

DC offset (max. allowable)........... 1.0 V

†

Video output — RGB

Number/signal type ..................... 1 VGA-UXGA RGBHV, RGBS (follows input type)

Connectors .................................... (1) 15-pin HD female

Nominal level ................................ 0.7 Vp-p for RGB

Minimum/maximum levels ........ 0.3 V to 1.5 Vp-p (follows input)

Impedance ..................................... 75 ohms

Return loss ..................................... <-40 dB @ 5 MHz

DC offset ........................................ ±5 mV, max., with input at 0 offset

†

Video — composite video

Gain ................................................ Unity

Differential phase error ............... 0.25º at 3.58 MHz and 4.43 MHz

Differential gain error .................. 0.15% at 3.58 MHz and 4.43 MHz

Switching speed ............................ 1 ms (max.) from front panel, 1-2 s from remote panel

CMRR ............................................. -90 dB @ 100 Hz, -70 dB @ 10 MHz

†

Video input — composite video

Number/signal type ..................... 2 composite video

Connectors ..................................... 2 female RJ-45 (See chapter 2, “Installation”, “A/V input connections”

section, for pin conﬁgurations.)

Nominal level ................................ 1 Vp-p for composite video (including sync)

Minimum/maximum levels ........ Analog: 0.4 V to 2.0 Vp-p with no offset

Impedance ..................................... 75 ohms

Return loss ..................................... <-40 dB @ 5 MHz

DC offset (max. allowable)........... 1.0 V

A-2

PVS 204SA Switcher • Reference Material

†

Video output — composite video

Number/signal type ..................... 1 composite video

Connectors .................................... 1 RCA female

Nominal level ................................ 1 Vp-p for composite video (including sync)

Minimum/maximum levels ........ 0.4 V to 2.0 Vp-p (follows input)

Impedance ..................................... 75 ohms

Return loss ..................................... -40 dB @ 5 MHz

DC offset ........................................ ±20.5 mV with input at 0 offset

Sync

Input type ...................................... RGBHV, RGBS (RGB input)

Output type .................................... RGBHV, RGBS (RGB output, follows input)

Standards ........................................ NTSC 3.58, NTSC 4.43, PAL, SECAM (for composite video inputs and

outputs)

Input level ..................................... 2.0 V to 5.5 Vp-p

Output level .................................. 4.5 V to 5.5 Vp-p, unterminated

Input impedance .......................... 511 ohms

Output impedance ....................... 75 ohms

Max. propagation delay ............... 40 ns (system only, not due to cable delay)

Max. rise/fall time ........................ 15 ns

Polarity............................................ Positive or negative (follows input)

†

Audio input — refer to the PVT Series Transmitters’ audio specications

Number/signal type ..................... 4 proprietary signals from Extron PVT Series wall plates and transmitters

Connectors .................................... 4 female RJ-45 (2 shared with RGB inputs, 2 shared with composite video

inputs)

0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

Audio — preamplier

Input gain adjustment ................. –18 dB to +24 dB (default = 0 dB), adjustable per input via RS-232

Input level sensitivity ................... -10 dBV (0.316 Vrms) for maximum output before clipping

Volume control range ................... 0 to -60 dB

Crosstalk ........................................ <-85 dB @ 1 kHz, (with 50' cables)

Stereo channel separation ........... >80 dB @ 1 kHz, (with 50' cables)

Bass adjustment ............................. ±10.5 dB @ 50 Hz

Treble adjustment .......................... ±10.5 dB @ 15 kHz

†

Audio input —Aux/Mix

Number/signal type .................... 1 mono, unbalanced or balanced

Connectors .................................... (1) 3.5 mm captive screw connector, 3 pole

Impedance ..................................... >15k ohms unbalanced, DC coupled

>22k ohms balanced, DC coupled

Nominal level ................................ -20 dBV (100 mVrms)

Maximum level ............................. +16 dBV (6.31 V), (balanced) at 1% THD+N

Input gain/volume adjustment . -18 dB to +24 dB (default = 0 dB), adjustable independently from all other

Input level sensitivity ................... -20 dBV (100 mV) for maximum output before clipping when Aux/Mix

Input clips at +16 dBV. The clipping level changes when gain changes.

audio gain and volume controls via front panel or RS 232

volume is set to 24

PRELIMINARY

PVS 204SA Switcher • Reference Material

A-3

Reference Material, cont’d

Audio output — power amplier

Number/signal type .................... (1) stereo (default) or dual mono, 2 channels total

Connectors .................................... (1) 5.0 mm captive screw connector, 4 pole

Impedance ..................................... 4/8 ohms (single channel) or 4/8 ohms (stereo)

Ampliﬁer type ............................... Class D

Gain/volume adjustment ........... -10 dB to +10 dB (default = 0 dB), adjustable in 1 dB steps

Frequency response ..................... 20 Hz to 20 kHz, -1 dB/+3.5 dB @ 1 watt output, 8 ohm load

THD + Noise ................................. 0.2% @ 1 kHz at nominal level (1 watt, 8 ohm load)

S/N .................................................. >67 dB, 20 Hz to 20 kHz at maximum output (unweighted),

8 ohms (with 50’ cables) Continuous power output with a full load at 1 kHz, 1% THD

At 4 ohms.......................... 13 watts (rms) per channel (1 watt tolerance)

At 8 ohms.......................... 7 watts (rms) per channel (1 watt tolerance)

Damping factor .............................. >80 (8 ohm load)

Control/remote — switcher

Serial host control ports .............. 2 bidirectional RS-232: 1 rear panel 3.5 mm captive screw connector,

5 pole (shared with IR control); 1 front panel 2.5 mm stereo mini jack

Baud rate and protocol ................. 9600 baud, 8 data bits, 1 stop bit, no parity

Serial control pin conﬁgurations . Captive screw connector: A = TX, B = RX, C = IR receive, D = GND,

E = 12 VDC

2.5 mm mini stereo jack: tip = TX, ring = RX, sleeve = GND

DC volume control port ............... (1) 3.5 mm captive screw connector, 3 pole

DC volume control pin conﬁgurations

1 = 10 VDC, 2 = variable voltage or mute, 3 = GND

Volume control voltage range ..... 0 V (mute) to 10 V (maximum volume)

Program control ............................. Extron’s Simple Instruction Set (SIS™)

†

PRELIMINARY

General

External power supply ................. 100 VAC to 240 VAC, 50/60 Hz, external, autoswitchable; to 12 VDC,

3 A, regulated

Power input requirements ........... 12 VDC, 3 A

Temperature/humidity ................ Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing

Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing

Rack mount .................................... Yes, with optional 1U rack shelf, part #60-190-01 (RSU 129) or 60-604-01

(RSB 129); or 1U VersaTools® 3" deep rack shelf, part #60-190-20 (RSF 123) or

60-604-20 (RSB 123)

Also furniture mountable with an optional MBU 123 mini under-desk

mounting kit, part #70-212-01; or above-projector mountable with optional

kits PMK 350 (#70-563-xx) or PMK 300 (#70-374-01)

Enclosure type .............................. Metal

Enclosure dimensions .................. 1.7" H x 8.7" W x 3.0" D (1U high, half rack wide)

4.3 cm H x 22.1 cm W x 7.6 cm D

Product weight .............................. 2.5 lbs (1.1 kg)

Shipping weight ........................... 5 lbs (2.3 kg)

Vibration ........................................ ISTA 1A in carton (International Safe Transit Association)

Listings............................................ UL, CUL

Compliances ................................... CE, FCC Class A, VCCI, AS/NZS, ICES

MTBF ............................................... 30,000 hours

Warranty ........................................ 3 years parts and labor

All nominal levels are at ±10%.

Speciﬁcations are subject to change without notice.

A-4

PVS 204SA Switcher • Reference Material

Part Numbers and Accessories

These items are included in each order for an PVS 204SA switcher:

Included parts

Included parts Replacement

part number

PVS 204SA switcher 60-800-01 Rubber feet (4)

12 VDC, 3 A external power supply, (1) 5-pole, 3.5 mm captive screw connector, (1) 10-703-12LF 3-pole, 3.5 mm captive screw connector, (1) 10-703-11LF 2-pole, 3.5 mm captive screw connector, orange (1) 10-762-10LF 2-pole, 5 mm captive screw connector, (1) PVS 204SA User’s Manual

Tweeker

Accessories

Accessory Part number

PVT Twisted Pair Transmitters

Architectural Adapter Plate Models

PVT CV AAP, composite video transmitter PVT RGB AAP, RGB video transmitter

Decora Wall Plate Models

PVT CV D, composite video transmitter PVT RGB D, RGB video transmitter

Rack Mounted Transmitters

PVT CV, composite video transmitter PVT RGB CV, RGB and composite video transmitter

MediaLink Controllers

MLC 52 RS VC, IR and RS control, with volume control MLC 52 RS, IR and RS control 60-744-12 MLC 104 IP Plus, with IP Link 60-818-xx PMK 450, Pole Mount Kit 70-618-03 PCM 240, Projector ceiling mount 60-772-03 UPB 25, Universal projector mounting bracket 60-773-03 VCM 100 AAP, Volume and mute controller, AAP model 70-396-xx VCM 100 MAAP, Volume and mute controller, mini AAP model 70-397-xx VC 50, Volume controller wall plate 70-532-02 MSR 6, mini stereo plug to RCA audio adapter 26-592-01 MLP 101 D, mic to line preamplier, Decora wall plate model 60-822-x2

70-579-0x 70-580-0x

60-745-12

PRELIMINARY

PVS 204SA Switcher • Reference Material

A-5

PRELIMINARY

Reference Material, cont’d

Speaker accessories

Accessory Part number

SI 3C LP, Full-Range Ceiling Speakers, 4" Low Prole Back Can and

Transformer

SI 26CT, Two-Way Ceiling Speakers, 8" Back Can and Transformer 42-070-03 SI 26, Two-Way Surface Mount Speakers, 6.5" Woofer 42-072-0x SI 26W, Two-Way In-Wall Speakers, 6.5" Woofer 42-068-03 SI 26X, Two-Way Open Back Ceiling Speakers 42-067-03 SI 28, Two-Way Surface Mount Speakers, 8" Woofer 42-073-0x SI 28W, Two-Way In-Wall Speakers, 8" Woofer 42-069-03

Cable accessories

Accessory Part number

CFG cable, 9-pin D female to 2.5 mm TRS conguration cable 70-335-01 MLC IR/RS-232 cable, projector cable, plenum 26-621-xx MLC PW/RS-232/VC cable, power, switcher, and volume control,

plenum

MVGA M-M/3 cable, 3' male to male micro VGA cable 26-567-01 MVGA M-M/6 cable, 6' male to male micro VGA cable 26-567-02 V RCA/3 cable, 3' RCA male to male composite video cable 26-600-03 V RCA/6 cable, 6' RCA male to male composite video cable 26-600-01 CAT 5 cable, 35', plenum 26-637-35 CAT 5 cable, 50', plenum 26-637-50 CAT 5 cable, 75', plenum 26-637-75 CAT 5 cable, 100', plenum 26-637-100

42-103-13

26-626-xx

A-6

PVS 204SA Switcher • Reference Material

Right

Channel

Left

Channel

Stereo

Mono Sum

Limiter

Aux/Mix

Input

(+)

(-)

Power

Amplifier

With

Output

Filters

Twisted Pair

Differential

Audio Input

Balanced Line

Level Input

Tone

Controls

Volume

Treble

Bass

Loudness

High Pass

Filter

OFF

Input Channel

Gain

High Pass Filter

On/Off

DIP Switch

Stereo/Dual Mono

DIP Switch

Software

Controlled

Software

Switched:

Limiter On/Off

Aux/Mix

Level Encoder

Audio MUX

Power Amp

Level

Dual

Mono

Dual

Mono

(+)

(-)

Audio Block Diagram

The diagram below represents audio signal ow within the PVS 204SA.

PRELIMINARY

Figure A-1 — PVS 204SA audio block diagram

PVS 204SA Switcher • Reference Material

A-7

Reference Material, cont’d

dBV Voltage dBu

-20 dBV 0.100 V -17.8 dBu

-19 dBV 0.112 V -16.8 dBu

-18 dBV 0.126 V -15.8 dBu

-17 dBV 0.141 V -14.8 dBu

-16 dBV 0.158 V -13.8 dBu

-15 dBV 0.178 V -12.8 dBu

-14 dBV 0.200 V -11.8 dBu

-13 dBV 0.224 V -10.8 dBu

-12 dBV 0.251 V -9.8 dBu

-11 dBV 0.282 V -8.8 dBu

-10 dBV 0.316 V -7.8 dBu

-9 dBV 0.355 V -6.8 dBu

-8 dBV 0.397 V -5.8 dBu

-7 dBV 0.447 V -4.8 dBu

-6 dBV 0.501 V -3.8 dBu

-5 dBV 0.562 V -2.8 dBu

-4 dBV 0.631 V -1.8 dBu

-3 dBV 0.708 V -0.8 dBu

-2 dBV 0.794 V 0.2 dBu

-1 dBV 0.891 V 1.2 dBu 0 dBV 1.000 V 2.2 dBu 1 dBV 1.122 V 3.2 dBu 2 dBV 1.259 V 4.2 dBu 3 dBV 1.413 V 5.2 dBu 4 dBV 1.585 V 6.2 dBu 5 dBV 1.778 V 7.2 dBu 6 dBV 1.995 V 8.2 dBu 7 dBV 2.24 V 9.2 dBu 8 dBV 2.51 V 10.2 dBu 9 dBV 2.82 V 11.2 dBu 10 dBV 3.16 V 12.2 dBu

dBu Vo ltage dBV

-20 dBu 0.078 V -22.2 dBV

-19 dBu 0.087 V -21.2 dBV

-18 dBu 0.098 V -20.2 dBV

-17 dBu 0.109 V -19.2 dBV

-16 dBu 0.123 V -18.2 dBV

-15 dBu 0.138 V -17.2 dBV

-14 dBu 0.155 V -16.2 dBV

-13 dBu 0.174 V -15.2 dBV

-12 dBu 0.195 V -14.2 dBV

-11 dBu 0.218 V -13.2 dBV

-10 dBu 0.245 V -12.2 dBV

-9 dBu 0.275 V -11.2 dBV

-8 dBu 0.309 V -10.2 dBV

-7 dBu 0.346 V -9.2 dBV

-6 dBu 0.388 V -8.2 dBV

-5 dBu 0.436 V -7.2 dBV

-4 dBu 0.489 V -6.2 dBV

-3 dBu 0.549 V -5.2 dBV

-2 dBu 0.616 V -4.2 dBV

-1 dBu 0.691 V -3.2 dBV 0 dBu 0.775 V -2.2 dBV 1 dBu 0.870 V -1.2 dBV 2 dBu 0.976 V -0.2 dBV 3 dBu 1.095 V 0.8 dBV 4 dBu 1.228 V 1.8 dBV 5 dBu 1.378 V 2.8 dBV 6 dBu 1.546 V 3.8 dBV 7 dBu 1.735 V 4.8 dBV 8 dBu 1.974 V 5.8 dBV 9 dBu 2.184 V 6.8 dBV

10 dBu 2.451 V 7.8 dBV

Audio Reference Levels

The speciﬁcations for the audio source devices may be listed in one of several units.

You may wish to use a sine wave generator such as the Extron VTG 300 as a source

for setting up audio inputs before the input devices are available. The tables below

are a convenient reference for equivalences between dBV, voltage, and dBu.

PRELIMINARY

A-8

Figure A-2 — Audio reference tables

PVS 204SA Switcher • Reference Material

Extron’s Warranty

Extron Electronics warrants this product against defects in materials and workmanship for a period

of three years from the date of purchase. In the event of malfunction during the warranty period

attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option,

repair or replace said products or components, to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is returned within the warranty period, with proof of purchase and description of malfunction to:

USA, Canada, South America, Europe, Africa, and the Middle East: and Central America:

Extron Electronics, Europe

Extron Electronics Beeldschermweg 6C 1001 East Ball Road 3821 AH Amersfoort Anaheim, CA 92805, USA The Netherlands

Asia: Japan:

Extron Electronics, Asia Extron Electronics, Japan 135 Joo Seng Road, #04-01 Kyodo Bldg., PM Industrial Bldg. 16 Ichibancho Singapore 368363 Chiyoda-ku, Tokyo 102-0082

Japan

This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care,

electrical or mechanical abuse, abnormal operating conditions or non-Extron authorized modiﬁcation to the product.

If it has been determined that the product is defective, please call Extron and ask for an Applications Engineer at (714) 491-1500 (USA), 31.33.453.4040 (Europe), 65.383.4400 (Asia), or 81.3.3511.7655 (Japan) to receive an RA# (Return Authorization number). This will begin the repair process as quickly as possible.

Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of

loss or damage during shipment. Returned units must include the serial number and a description of the problem, as well as the name of the person to contact in case there are any questions.

Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality, performance, merchantability, or ﬁtness for any particular use. In no event

will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been advised of such damage.

Please note that laws vary from state to state and country to country, and that some provisions of this warranty may not apply to you.

Extron USA - West

Headquarters

+800.633.9876

Inside USA / Canada Only

+1.714 .491.1500 +1.714 .491.1517 FAX

Extron USA - East

+800.633.9876

Inside USA / Canada Only

+1.919.863.1794 +1.919.863.1797 FA X

Extron EMEA

+800.3987.6673

Inside Europe Only

+31.33.453.4040 +31.33.453.4050 FAX

Extron Asia

+800.7339.8766

Inside Asia Only

+65.6383.4400 +65.6383.4664 FAX

Extron Japan

+81.3.3511.7655 +81.3.3511.7656 FA X

Extron China

+400.883.1568

Inside China Only

+86.21.3760.1568 +86.21.3760.1566 FAX

Extron Middle East

+971.4.2991800 +971.4.2991880 FAX

Extron Electronics PVS 204SA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

About this Manual

TP cable advantages

Features

Application Diagrams

UL/Safety Guidelines

Important safety instructions

Mounting the Switcher

Rear Panel Features and Cabling

Power connection

A/V output connections

Aux/Mix input connection

Control connection

Speaker arrangement examples

Connecting speakers to the PVS 204SA

Labeling the A/V Inputs

Labeling and connecting the A/V input cables

Labeling the PVT Decora face plates

Final Setup

Front Panel Features and Operation

Setting Switcher Modes

Single switcher mode

Separate switcher mode

Setting the single switcher mode via the front panel

Setting the separate switcher mode via the front panel

Auto Switching

Setting the input auto switching mode via the front panel

Setting Up and Optimizing the Audio

Steps for optimizing the audio

Gain control

Individual channel input sensitivity control

Front panel input sensitivity adjustment

Clipping indicator

Bass, treble, and loudness control

Aux/Mix control

Resetting the Switcher

Front Panel Security Lockout (Executive Mode)

RS-232 Programmer’s Guide

Host-to-PVS communications

PVS-initiated messages

Error responses

Using the command/response tables

Factory defaults

Command/response table for SIS commands

Command/response table for special function SIS commands

Updating Firmware

Part Numbers and Accessories

Included parts

Accessories

Speaker accessories

Cable accessories

Audio Block Diagram

Audio Reference Levels

Extron’s Warranty