Extron Electronics RGB 168xi User Manual

User’s Manual

RGB 168

VGA Interface with Stereo Audio and ADSP

68-550-01 Rev. B

11 08

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™

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 fixation • 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

Dieses Symbol soll den Benutzer auf wichtige
Anleitungen zur Bedienung und Wartung
(Instandhaltung) in der Dokumentation hinweisen,
die im Lieferumfang dieses Gerätes enthalten ist.

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 Sicherheitsanleitungen sollten

aufbewahrt werden, damit Sie später 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.

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.

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 orifices • 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 Stift oder Kontakt ist für einen Erdschluß, und stellt eine
Sicherheitsfunktion dar und sollte nicht umgangen oder außer Betrieb gesetzt
werden.

Stromunterbrechung • Um das Gerät auf sichere Weise vom Netz zu trennen,

sollten Sie alle Netzkabeln aus der Rückseite des Gerätes oder aus dem Desktop­Strommodul (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 qualifiziertem

Servicepersonal durchgeführt werden. Im Inneren des Gerätes sind keine Teile
enthalten, die vom Benutzer gewartet werden können. Zur Vermeidung eines
elektrischen Schocks versuchen Sie in keinem Fall, dieses Gerät selbst zu warten,
da beim Öffnen oder Entfernen der Abdeckungen die Gefahr eines elektrischen
Schlags oder andere Gefahren bestehen.

Schlitze und Öffnungen • Wenn das Gerät Schlitze oder Löcher im Gehäuse

aufweist, dienen diese zur Vermeidung einer Überhitzung der empfindlichen
Teile im Inneren. Diese Öffnungen dürfen niemals von anderen Objekten
blockiert werden.

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

Ersetzen Sie nur durch diegleiche oder einen vergleichbaren Batterietyp, der
auch vom Hersteller empfohlen wird. Entsorgung der verbrauchten Batterien
bitte gemäß den Herstelleranweisungen.

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

calificado. 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.

FCC Class A Notice

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.

Table of Contents

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

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

About the RGB 168

Features ...................................................................................... 1-2

Chapter 2 • Installation and Operation.......................... 2-1

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

Front Panel ................................................................................ 2-3

Rear Panel .................................................................................2-5

Setting Internal Jumpers ................................................... 2-8

Installing Adapter Plates ................................................2-10

Mounting the Interface .................................................... 2-13

Tabletop/desktop placement ..............................................2-13

Under-desk mounting .........................................................2-13

Through-desk mounting ...................................................... 2-14

UL rack mounting guidelines ...............................................2-15

Rack mounting ..................................................................... 2-16

Cabling ......................................................................................2-17

Troubleshooting ....................................................................2-20

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xixi

Appendix A • Specifications, Accessories, and Part

Numbers .............................................................................................. A-1

Specifications ......................................................................... A-2

Included Parts ......................................................................... A-5

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

Cables ......................................................................................... A-5

Adapter Plates ....................................................................... A-7

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

RGB 168

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68-550-01 Rev. B

TOC-i

11 08

Table of Contents, cont’d

TOC-ii

RGB 168

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xi • Table of Contents

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RGB 168

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Chapter One

1

Introduction

About this Manual

About the RGB 168xi

Features

Introduction, cont’d

Introduction

About this Manual

This manual contains information about the RGB 168xi
universal analog interface and how to operate and
configure it.

About the RGB 168

The RGB 168xi is a computer-video and stereo audio
interface with 300 MHz (-3dB) video bandwidth. This
interface has a horizontal frequency range of 15 kHz to
125 kHz, so it can be used with any type of analog
computer signal, including those from VGA to UXGA-2,
Mac, Quadra, Sun, and SGI computers.

Features

This section highlights the main features of the RGB 168xi
interface. See the installation chapter for a detailed
description of front and rear panel features.

Internal power supply — Uses a standard IEC power cord.
Front panel AC outlet — Peripherals or laptop computers

can be plugged into the unswitched front panel AC
outlet for a convenient power connection. This
feature is not available in Europe.

Furniture and rack mountability — The RGB 168xi can be

mounted under a desk or podium with optional
hardware, or it can be mounted in a rack or through
a desk or other furniture with included vertical
mounting brackets.

Active stereo audio — Unbalanced stereo audio input via a

front panel jack is output as balanced, line level
stereo audio on the rear panel captive screw
connector.

Horizontal shift control — The interface features front

panel horizontal centering control.

Sync stripping — Incoming sync will be stripped from the

red, green, and blue signals.

RGBHV, RGBS, or RGsB output — RGBHV can be output

simultaneously with RGBS. Sync on green (RGsB)
output can be DIP switch selected.

Advanced Digital Sync Processing

allows sync processing operations, such as horizontal
centering, to occur without affecting the signal’s sync
timing. This allows horizontal centering to be
applied to signals that are output to digital display

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™ (ADSP™) — ADSP

1-2

RGB 168

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xi • Introduction

xixi

devices such as LCD projectors, DLP projectors and
plasma displays. A rear panel DIP switch allows an
alternative, Digital Display Sync Processing™
(DDSP™), to be used instead.

Gain/peaking control — To compensate for signal

degradation caused by long cable lengths, use this
rear panel toggle switch to increase output voltages.

Serration pulse — This feature allows serration pulses to

either be present or not present at the output.
Serration pulses are required for some displays.

Pass-through connectors — A wide assortment

of architectural adapter plates is available for
installation on these interfaces to allow convenient
pass-through A/V connections.

Buffered local monitor output — A 15-pin HD female

connector provides a front panel buffered output for
a local monitor.

ID bit termination — Two front panel DIP switches

provide ID bit termination on pins 4 and/or 11 of the
local monitor output.

RGB 168

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xi • Introduction

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1-3

Introduction, cont’d

1-4

RGB 168

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xi • Introduction

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RGB 168

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Chapter Two

2

Installation and Operation

Installation Overview

Front Panel

Rear Panel

Setting Internal Jumpers

Installing Adapter Plates

Mounting the Interface

Cabling

Troubleshooting

RGB 168

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Installation and Operation, cont’d

Installation and Operation

Installation Overview

To install and set up the RGB 168xi for operation, follow
these basic steps:

Turn all of the equipment off. Make sure that the

1

computer, the interface and the output device(s)
(projector or display monitor, and local monitor) are
all turned off and disconnected from the power
source.

Set internal jumpers for sync polarity and sync pulse

2

width. See “Setting Internal Jumpers” in this chapter.

Install optional adapter plates for pass-through A/V

3

connections. See “Installing Adapter Plates” in this
chapter.

Install the rubber feet for tabletop use, or install the

4

appropriate brackets and furniture or rack mount the
interface. See “Mounting the Interface” in this
chapter.

Attach the input (computer) and output (display, local

5

monitor and audio) cables. See “Cabling” in this
chapter.

2-2

RGB 168

Set the DIP and toggle switches. Use the “Front

6

Panels” and “Rear Panels” sections of this chapter as
a guide.

Connect power cords and turn on the devices in the

7

following order: output devices (projector, monitors,
speakers) and input device (computer).

The image should appear on screen, and sound

8

should be audible. If not, ensure that all devices are
plugged in and receiving power. Check the cabling
and switch settings, and make adjustments as
needed.

Refer to “Troubleshooting” in this chapter, then call
the Extron customer support hotline, if needed.

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Front Panel

UNSWITCHED

100-240 0.5A MAX.

RGB 168

H. SHIFT

MIN/MAX

INPUTS

AUDIO ANALOG

BUFFERED LOCAL
MONITOR OUTPUT

UNIVERSAL INTERFACE W/ADSP

ID PIN 4

ID PIN 11

This section familiarizes you with the front panel features
and the options for making connections and changing
settings.

Setting DIP switches

The DIP switches on the front and rear panels of the
RGB 168xi may be either the rocking type or the sliding
type.

2

To set rocking type DIP switches, use a

3 41

small screwdriver to depress the
appropriate end of each switch.

3 412

To set sliding type DIP switches, use a small
screwdriver to slide (push) the switch to the
On/closed or Off/open position.

1

6

2

5

4

3

2-color power/signal LED — This LED lights amber

1

7

8 9

to indicate power on only. It lights green to indicate
that power is on and a video signal is also present.

Audio input jack — This 3.5 mm stereo input jack

2

accepts an unbalanced stereo audio input.

Analog video input 15-pin HD female connector

3

ID bit termination DIP switches — These switches

4

provide proper ID bit termination when a local

monitor is not connected to the interface’s
buffered local monitor output.

ID PIN 4

ID PIN 11

DIP switch 1 connects pin 4 to ground.
DIP switch 2 connects pin 11 to ground.

ON — Set both switches (ID PIN 4 and

ID PIN 11) to On if no local monitor is
connected.

OFF — Set both switches to Off if a local

monitor is attached to the interface.

RGB 168

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2-3

Installation and Operation, cont’d

Buffered local monitor output 15-pin HD female

5

connector — This allows output to a local monitor.
Set the ID PIN DIP switches to On if this connector is
not used.

Horizontal shift control knob — This control adjusts

6

the horizontal centering of the remote output
display.

The horizontal shift control has no mechanical limits
to rotation. When the minimum or maximum limit
of the control is reached, the picture ceases to move
on screen, and the MIN/MAX indicator LED lights
red.

If the DDSP DIP switch is set to On, the horizontal
shift control is disabled.

MIN/MAX indicator LED — This LED lights red

7

whenever the lower or upper limits of the horizontal
or vertical shift controls are reached.

Optional architectural adapter plates — Up to four

8

adapter plates for pass-through audio/video
connections can be attached at one time to the
interface. See the “Installing Adapter Plates” section
in this chapter for installation instructions.

2-4

RGB 168

AC power output connector — An unswitched

9

standard IEC AC power connector allows you to
connect a peripheral device that requires power. This
feature is not available in Europe (RGB 168xi Int).

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Rear Panel

100-240 50/60 Hz 0.5A

1 2 5 72 64

AC power input connector — Connect a standard

1

3

IEC AC power cord here for power
input (100 VAC to 240 VAC, 50/60 Hz).

Cable access openings — Cables attached to the

2

front panel A/V pass-through architectural adapter
plates exit the enclosure here. Clamp cables in place
with the supplied hardware.

Optional output architectural adapter plate — Front

3

panel input AAP A/V connectors can be wired here
to pass-through output connectors.

3-position gain/peaking switch — Use this toggle

4

switch to compensate for signal degradation caused
by long (over about 125 feet) cable lengths. Choose
the setting that provides the best image on the
output display device. Select from these options:

• Unity (no gain or peaking) — The output level is

the same as that of the input and with no
added peaking.

• 50% — This setting increases the output signal

level and adds 50% of the maximum peaking
to the signal.

• 100% — This setting increases the output signal

level and adds 100% of the maximum peaking
to the signal.

If the signal cable between the interface and the
display device is shorter than 125 feet, and the gain/
peak switch is set to a setting other than unity, the
image may be overly bright (overcompensated).

GAIN/
PEAK

SOG

100%

UNITY

50%

RHGVB

DDSP

SERR

SPARE

S

OUTPUT

RGB 168

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Installation and Operation, cont’d

If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look
thick and fuzzy, try changing the gain/peak setting.

DIP switches — The four DIP switches on

5

the rear panel control sync on green (SOG)
output, Digital Display Sync Processing and
serration pulse removal.
The fourth switch is a spare and it has no function.

1 — SOG (sync on green)

ON — When this switch is set to On, the

interface outputs sync on green.

OFF — When the SOG switch is set to Off, the

interface outputs both separate
horizontal and vertical sync (on the H
and V connectors) and composite sync
(on the S connector) for RGBHV or
RGBS, respectively.

2 — DDSP™ (Digital Display Sync Processing™)

This feature may be necessary for digital display
devices such as LCD (liquid crystal display), DLP
(digital light processing) and plasma displays.
Use this option if the image still is not displayed
properly after all other options, such as serration
pulse removal and video termination changes,
have been explored.

ON — When this switch is set to On, the

interface uses Digital Display Sync
Processing instead of Advanced Digital
Sync Processing™. DDSP does not
process the sync signal.

SOG

DDSP

SERR

SPARE

2-6

RGB 168

DDSP disables horizontal and vertical shift

controls.

OFF — When this switch is set to Off, the

interface performs sync processing
operations, such as horizontal shifting,
with ADSP.

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xi • Installation and Operation

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3 — SERR (serration pulse) — Many display

devices, including LCD and DLP projectors and
plasma displays, must have serration pulses
removed from the sync signal in order to display
properly. Flagging or bending at the top of the
video image is a sign that the serration pulses
should be removed.

ON — When this switch is set to On, serration

pulses are output in the vertical sync
interval.

OFF — When this switch is set to Off, serration

pulses are not output.

4 — SPARE — This DIP switch does not have a

function.

BNC output connectors — These BNC female

6

connectors are for red, green, and blue video output,
and horizontal, vertical and composite sync output.

Stereo audio output connector — This 3.5 mm,

7

5-conductor captive screw connector is used for
audio output. See “Cabling” in this chapter for a
wiring guide.

RGB 168

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Installation and Operation, cont’d

Setting Internal Jumpers

The jumpers inside the interface(s) are set at the factory to meet
the requirements of most systems. However, you can
change a jumper setting to meet the needs of a particular
system.

Changes to internal jumper settings must be
performed by authorized service personnel only.

The user-configurable, internal jumpers control the
following functions:

• horizontal and vertical sync polarity, and

• vertical sync pulse width.

Follow these steps to change the jumper settings.

1. Remove power from the interface (if it is connected) by

disconnecting the AC power cord from the unit.

2. Open the cover of the interface (the top half of the

enclosure), as shown below.

Do not touch any switches or electronic
components inside the interface. Doing so
could damage the interface.

Remove (12)
Screws

2-8

RGB 168

Lift Cover
Straight Up

RGB 168 xi

MIN/MAX

UNIVERSAL INTERFACE W /ADSP

BUFFERED LOCAL
MONITOR OUTPUT

ID PIN 11

ID PIN 14

INPUTS

ANALOG

AUDIO

Remove #8 Screw

Extron
RGB 168xi

(4 Plcs) Each Side
and Bracket, if Present

Opening the interface cover

3. Note the positions of jumpers J20 and J40 before

changing jumper settings. The following illustration of
the circuit board shows the locations of the J20 and J40
jumpers. There are two possible setting combinations
for 3-pin jumpers:

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xi • Installation and Operation

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UNSWITCHED

600 WATTS MAX.

1 and 2

2 and 3

pins 1 and 2 connected, and

pins 2 and 3 connected.

Rear

1

J19

1

J20

1

J40

J20: Sync polarity

jumper

J40: Vertical

sync

width

jumper

Power Supply

Front

Circuit board jumper locations

4. Configure the jumpers. To configure the jumpers, use

pliers to pull the jumper shunt off the pins, then place
the jumper on the appropriate pins.

Changing jumper settings

The jumpers perform the following functions:

J-20: Sync polarity jumper — This jumper adjusts the

ollow

Negative

output sync polarity. Horizontal (H) and vertical
(V) sync output can either follow input sync

1

polarity, or be forced to negative.

RGB 168

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Installation and Operation, cont’d

• If the jumper is placed on pins 1 and 2, output
H and V sync polarities are forced to negative.

• If the jumper is placed on pins 2 and 3, output
sync polarities follow input sync polarity: the
output sync signals’ polarity are the same as
the input polarity.
This is the default setting.

J-40: Vertical sync width jumper — This jumper

adjusts the vertical sync pulse width. Some
digital display devices have very specific

Wide

hort

5. Replace and fasten the enclosure cover, reversing step 2.

requirements for incoming sync pulse width. If
no picture displays, the picture cuts in and out,

1

or the picture is scrambled, try adjusting the
vertical sync pulse width or switching from
ADSP to DDSP.

• If the jumper is placed on pins 1 and 2, the
output vertical sync pulse is
short (narrow).

• If the jumper is placed on pins 2 and 3, the
output vertical sync pulse iswide. This is the
default setting.

If adapter plates will be installed next, this step can be
omitted.

Installing Adapter Plates

The RGB 168xi offers the ability to incorporate a variety of
optional architectural adapter plates for pass-through audio
and/or video connections. Each interface’s front panel can
hold up to four (4) input adapter plates. The rear panel can
hold up to two (2) output adapter plates.

Blank plates (three double height) are included with the
interface to cover unused spaces. Other adapter plates
must be ordered separately.

The input plates attach to the front panel. Output cables,
attached to the rear of each plate, pass through the interface
enclosure and rear panel and are held in place by clamps or,
where an output plate is installed, may be wired directly to
the rear output plate connectors. Some adapters require
cables to be soldered to the input/output plate connectors.

Adapter plates should be attached to the output cables and
interface before the interface is installed in a rack or in
furniture. The screws for installing the adapter plates are
built into the plates, so no additional screws are needed.

2-10

RGB 168

xixi

xi • Installation and Operation

xixi

Adapter plate installation must be performed

by authorized service personnel only.

Follow these steps to install adapter plates.

1. Make sure that the power is removed from the interface

by disconnecting the AC power cord from the unit.

2. Open the cover of the interface (the top half of the

enclosure), as shown below. Remove the screws from
the enclosure, and lift the cover straight up.

Do not touch any switches or electronic
components inside the interface. Doing so
could damage the interface.

Remove (12)
Screws

UNSWITCHED

600 WATTS MAX.

Lift Cover
Straight Up

RGB 168 xi

MIN/MAX

UNIVERSAL INTERFACE W /ADSP

BUFFERED LOCAL
MONITOR OUTPUT

ID PIN 11

ID PIN 14

INPUTS

ANALOG

AUDIO

Remove #8 Screw
(4 Plcs) Each Side
and Bracket, if Present

Extron
RGB 168xi

3. Remove the blank plates from the interface by

unscrewing the nuts that fasten the plates to the inside
of the enclosure.

4. Route the adapter output cables through the rear panel

cable holes and clamps into the enclosure and out the
front panel plate openings, as shown on the facing page.

5. Attach the output cables to the rear connectors of the

front panel adapter plates. Soldering will be required
for some connectors.

RGB 168

xixi

xi • Installation and Operation 2-11

xixi

Installation and Operation, cont’d

Cable Routing

HIGH VOLTAGE

CAUTION

RGB 168 xi

MIN/MAX

UNIVERSAL INTERFACE W /ADSP

BUFFERED LOCAL
MONITOR OUTPUT

ID PIN 11
ID PIN 14

INPUTS

ANALOG

AUDIO

Tighten nuts
securely

UNSWITCHED

600 WATTS MAX.

Adapter Plate

2-12

RGB 168

Routing adapter output cables and
attaching adapter plates

6. Insert the adapter plate screws through the holes in the

interface front panel, as shown above. Attach the
adapter plates to the enclosure with the provided
captive washers and #4-40 nuts.

7. Gently pull excess cable(s) out the rear panel cable

clamp openings or, if a rear panel output adapter plate is
being used, connect the cable(s) to the plate
connector(s). Do not strain or damage the cable­adapter connections.

8. Fasten the cables in place by tightening the screws on

the cable clamps provided on the rear panel openings.

xixi

xi • Installation and Operation

xixi

100-240 50/60 Hz 0.5A

9. Replace the top cover on the interface, and fasten it with

the screws removed in step 2.

Mounting the Interface

Select the installation site. Take cabling and power
availability into consideration. Select an installation option:
tabletop/desktop placement, or under-desk, through-desk
or rack mounting.

Tabletop/desktop placement

For tabletop or desktop placement only, install the self­adhesive rubber feet/pads (provided) onto the four corners
of the bottom of the interface enclosure.

Under-desk mounting

1. Attach the Extron MBU 125 (part #70-077-01) under-

desk mounting brackets to the interface with the
provided machine screws, as shown below.

2. Hold the interface with attached brackets against the

underside of the desk or other furniture. Mark the
location of holes for screws on the desk.

3. Drill 1/4” (6.4 mm) deep, 3/32” (2.38 mm) diameter

pilot holes in the table or desk at the marked screw
locations from the underside/inside (concealed side) of
the furniture, where the interface will be located.

4. Attach the interface to the installation surface with the

provided wood screws, as shown in the following
illustration.

RGB 168

xixi

xi • Installation and Operation 2-13

xixi

Installation and Operation, cont’d

RGB 168 xi

MIN/MAX

UNIVERSAL INTERFACE W /ADSP

BUFFERED LOCAL
MONITOR OUTPUT

ID PIN 11
ID PIN 14

INPUTS

ANALOG

AUDIO

Under-desk mounting

Through-desk mounting

1. Attach the Extron MBD 149 through-desk mounting
brackets (part #70-077-03) to the interface with the
provided machine screws.

2. Hold the interface with attached brackets against the
underside of the mounting surface of the desk or table.
With a soft pencil mark the location of holes for screws
on the desk. Mark the opening, approximately 17.63" x

1.88" (44.77 cm x 4.76 cm).

3. Cut out the material from the installation area with a
jigsaw. Check the opening size by inserting the
interface part way through the hole. If needed, use a
saw, file or sandpaper to enlarge the hole. Smooth the
edges of the hole with sandpaper.

4. Drill 1/4" (6.4 mm) deep, 3/32" (2.38 mm) diameter pilot
holes in the desk or table at the marked screw locations.
The holes should be drilled from the underside or inside
(concealed side) of the furniture, where the interface will
be located.

5. Attach the interface to the desk with the provided wood
screws, as shown in the following illustration.

UNSWITCHED

600 WATTS MAX.

2-14

RGB 168

xixi

xi • Installation and Operation

xixi

600 WATTS MAX.

UNSWITCHED

MIN/MAX

RGB 168 xi

Through-desk mounting

To adjust the height of the interface within the desk,
slightly loosen the screws that attach the brackets to the
interface, adjust the height by sliding the interface up or
down, and retighten the screws.

UL rack mounting guidelines

The following Underwriters Laboratories (UL) guidelines
pertain to the safe installation of the interface in a rack.

1. Elevated operating ambient temperature — If installed

in a closed or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be
greater than room ambient temperature. Therefore,
install the interface in an environment compatible with
the maximum ambient temperature (Tma = +122 °F,
+50 °C) specified by Extron.

2. Reduced air flow — Install the equipment in a rack so

that the amount of air flow required for safe operation
of the equipment is not compromised.

3. Mechanical loading — Mount the equipment in the

rack so that a hazardous condition is not achieved due
to uneven mechanical loading.

UNIVERSAL INTERFACE W /ADSP

MONITOR OUTPUT

BUFFERED LOCAL

ID PIN 11
ID PIN 14

ANALOG

INPUTS

AUDIO

RGB 168

xixi

xi • Installation and Operation 2-15

xixi

Installation and Operation, cont’d

4. Circuit overloading — Connect the equipment to the
supply circuit and consider the effect that circuit
overloading might have on overcurrent protection and
supply wiring. Appropriate consideration of equipment
nameplate ratings should be used when addressing this
concern.

5. Reliable earthing (grounding) — Maintain reliable
grounding of rack-mounted equipment. Pay particular
attention to supply connections other than direct
connections to the branch circuit (e.g. use of power
strips).

Rack mounting

1. Attach the Extron MBD 149 through-desk/rack
mounting brackets (part #70-077-03) to the interface
with the provided machine screws, as shown below.

2. Attach the interface to the rack with the provided
machine screws.

2-16

RGB 168

RGB 168 xi

MIN/MAX

UNIVERSAL INTERFACE W /ADSP

BUFFERED LOCAL
MONITOR OUTPUT

ID PIN 11
ID PIN 14

INPUTS

ANALOG

AUDIO

Rack mounting

xixi

xi • Installation and Operation

xixi

UNSWITCHED

600 WATTS MAX.

Cabling

Attach cables to the interface as detailed in the steps below.
A diagram later in this section shows how the system looks
when cabling is finished.

1. Connect the computer’s video output to the interface’s

front panel analog/ECL 9-pin D connector. If the
computer will provide the audio input, a VGA with
audio combination cable, such as an Extron
VGA M MHRA series cable (#26-490-01 to
#26-490-05), can be used.

2. Connect the stereo audio source (computer or other

device such as a CD player or tape deck) to the front
panel. The audio jack should be wired as shown below.

Tip (L)

Ring (R)

Sleeve ( )

Unbalanced

3. Connect the video output device’s (projector’s,

monitor’s) coaxial BNC cable to the rear panel BNC
connectors.

For RGBHV (separate H and V sync)

RHGVB

output, connect the cables as shown at
left.

For composite sync (RGBS), connect the

RGBHV

RHGVB

sync cable to the connector labeled “S”.

RGBS

For sync on green (SOG, RGsB), connect

RHGVB

the cables as shown here, and also select
the SOG option on the rear panel DIP
switch.

RGsB

S

S

S

4. Connect the local monitor’s cable to the front panel’s

15-pin HD female local monitor output connector. Set
the front panel monitor ID bit DIP switches to On if no
local monitor will be used.

RGB 168

xixi

xi • Installation and Operation 2-17

xixi

Installation and Operation, cont’d

5. Connect powered speakers or another audio device to
the rear panel captive screw connector. Follow the
wiring guide shown below. Insert the wires into the
appropriate openings. Tighten the screws on top to
fasten the wires, then insert the wired audio connector
into the audio output connector on the interface rear
panel.

CAUTION

Unbalanced Output

Tip

NO Ground Here

Sleeve (s)

Tip

NO Ground Here

Tip

Ring

Sleeve (s)

Tip

Ring

Wiring captive screw connectors for audio output

Connect the sleeve to ground (GND).
Connecting the sleeve to a negative (-)
terminal will damage the audio output circuits.

Balanced Output

2-18

RGB 168

6. Set the DIP and toggle switches. Use the “Front Panel”
and “Rear Panel” sections of this chapter as a guide.

7. Connect power cords and turn on the devices in the
following order: display and audio output devices
(projectors, monitors, speakers), interface, and input
device (computer).

The system is now ready for operation.

The illustration on the facing page shows typical system
installation and cable connections.

xixi

xi • Installation and Operation

xixi

2 - BNC

2 - RCA

2 - 3.5mm Stereo mini

DB9

2 - S-Video

2 - F Connectors

Front

Rear

RGB 168

xi

HD15

1 - S-Video / 2 - RCA

BUFFERED LOCAL
MONITOR OUTPUT

ID PIN 11
ID PIN 14

INPUTS

ANALOG

AUDIO

100-240V 0.5A

Power

RGB 168 xi

UNIVERSAL INTERFACE W /ADSP

Through-desk or

Rack Mounted

or

Mounted Under

UNSWITCHED

600 WATTS MAX.

MIN/MAX

SPARE
SERR

DDSP

SOG OUT

LEVEL/
PEAK

0.8V 50%

UNITY

0.9V 100%

AC Power

Network
Connection

a Desk

Audio

Monitor

or

PC Computer

Projector

Typical RGB 168

xixi

xi

installation and cable setups

xixi

RGB 168

xixi

xi • Installation and Operation 2-19

xixi

Installation and Operation, cont’d

Troubleshooting

When the interface, computer and output devices have
been properly installed, and the power is turned on, the
image should appear on screen, and sound should be
audible.

If the image does not appear or there is no sound

1. Ensure that all devices are plugged in.

2. Make sure that each device is receiving power. The

power indicator LED should light if the interface is
powered on.

3. Check the cabling and the audio connector wiring, and
make adjustments as needed.

4. Verify that the ID bit termination DIP switches on the
RGB 168xi have been set correctly.

5. For digital display devices, try switching between ADSP
and DDSP using the rear panel DDSP DIP switch.

6. Call the Extron customer support hotline if needed.

If the image does not display correctly

1. If the output image looks too green, make sure that the
sync on green feature (SOG DIP switch) is turned off.

2. If the picture bends or flags at the top of the screen, set
the SERR (serration pulse) DIP switch to Off.

3. For a display device that experiences intermittent
glitches, try switching between ADSP and DDSP using
the rear panel DDSP DIP switch.

4. If the picture “hangs off” the edges of the screen, adjust
the centering controls.

5. If the edges of the image seem to exceed their
boundaries or if thin lines and sharp edges look thick
and fuzzy, try changing the GAIN/PEAK setting.

6. If the image still does not display correctly, call the
Extron customer support hotline.

2-20

RGB 168

xixi

xi • Installation and Operation

xixi

RGB 168

xixi

xi

xixi

Appendix A

A

Specifications, Accessories, and

Part Numbers

Specifications

Included Parts

Accessories

Cables

Adapter Plates

3-xxixProduct X Operation

Specifications, cont’d

Specifications, Accessories, and Part #s

Video

Gain................................................ Unity, (0.725 Vp-p) 50% peaking,

(0.75 Vp-p) 100% peaking

Bandwidth ..................................... 300 MHz (-3 dB)

Video input

Number/signal type ................... 1 analog RGBHV, RGBS, RGsB, RsGsBs

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

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

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

unity gain

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

Horizontal frequency.................. Autoscan 15 kHz to 130 kHz

Vertical frequency ....................... Autoscan 30 Hz to 120 Hz

Return loss .................................... -30 dB @ 5 MHz

DC offset (max. allowable) ......... 4.0 V

Video output

Number/signal type ................... 1 analog RGBHV, RGBS, RGsB

Connectors ................................... 6 female BNC

1 female 15-pin HD local monitor buffered

output

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

Minimum/maximum levels ....... Analog: 0.7 V to 0.75 Vp-p with 0.70 Vp-p

input

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

Return loss .................................... -30 dB @ 5 MHz

Sync

Input type ..................................... RGBHV TTL (±), RGBS TTL (±),

RGsB 0.3 V (-), RsGsBs 1.3 V (-)

Output type .................................. RGBHV (±), RGBS (±), RGsB (-)

Input level ..................................... 2 V to 5.5 Vp-p with ±0.2 VDC

offset (max.)

Output level .................................. 4 V to 5 Vp-p, unterminated

Input impedance .......................... 510 ohms

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

Max. propagation delay .............. 48 ns

Max. rise/fall time ....................... 3.5 ns

Polarity .......................................... RGBHV: when RGBHV is input, polarity

follows input; otherwise negative

RGBS, RGsB: negative

A-2

RGB 168

xixi

xi • Specifications, Accessories and Part #s

xixi

Audio

Gain ................................................ Unbalanced output: 0 dB; balanced output

+6 dB

Frequency response .................... 20 Hz to 20 kHz, ±0.05 dB

THD + Noise................................. 0.03% @ 1 kHz, 0.3% @ 20 kHz at nominal

level

S/N ................................................ >72 dB, at maximum output (14 dBu),

balanced (unweighted)

Stereo channel separation .......... >66 dB @ 1 kHz to 20 kHz

Audio input

Number/signal type ................... 1 PC level stereo, unbalanced

Connectors ................................... (1) 3.5 mm stereo jack, 2 channel; tip (L),

ring (R), sleeve (ground)

Impedance .................................... 5k ohms, DC coupled

Nominal level ............................... -10 dBV (316 mVrms)

Maximum level ............................ +4.2 dBu, (unbalanced) at 1% THD+N

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

Audio output

Number/signal type ................... 1 stereo (2 channel), balanced/unbalanced

Connectors ................................... (1) 3.5 mm captive screw connector, 5 pole

Impedance .................................... 50 ohms unbalanced, 100 ohms balanced

Gain error ..................................... ±0.1 dB channel to channel

Maximum level (600 ohm) ......... >+8.8 dBm, balanced at 1% THD+N

General

Power ............................................ 100 VAC to 240 VAC, 50/60 Hz, 15 watts,

internal

MBC power jack .......................... 9.0 VDC, 150 mA

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 included kit, #70-077-03

Furniture mount .......................... Yes, with optional kit, #70-077-01 (under

desk), or

included kit #70-077-03 (through desk/

rack mount)

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

RGB 168

xixi

xi • Specifications, Accessories and Part #s A-3

xixi

Specifications, Accessories and Part #s, cont’d

Enclosure dimensions ................. 1.75" H x 17.5" W x 6.0" D (1U high, full

rack wide)

4.4 cm H x 44.5 cm W x 15.2 cm D
(Depth excludes connectors and knobs.

Width excludes rack ears.)

Product weight ............................. 3.5 lbs (1.6 kg)

Shipping weight ........................... 7 lbs (4 kg)

Vibration ....................................... ISTA 1A in carton (International Safe

Transit Association)

Listings .......................................... UL

Compliances ................................. CE, FCC Class A

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

RGB 168

xixi

xi • Specifications, Accessories and Part #s

xixi

Included Parts

These items are included in each order for an RGB 168xi :

Included parts Part number

RGB 168xi 60-379-12

Blank adapter plate, double height (3) 70-090-12

MBD 149 through-desk mounting bracket 70-077-03

3.5 mm, 5-pole captive screw connector 10-319-10

Accessories

Accessories Part number

MBU 125 under-desk mounting bracket 70-077-01

3.5 mm stereo plug 10-306-01

Cables

Input VGA cables Part number

VGA M-M MD/6 26-238-01

VGA-A M-M MD/3

VGA-A M-M MD/6 (with audio) 26-490-02

VGA-A M-M MD/12 (with audio) 26-490-03

(with audio) 26-490-01

RGB 168

Adapter kits Part number

Mac 15-pin HD F adapter cable kit w/audio 70-156-01

13W3 15-pin HD F adapter cable kit w/audio 70-157-03

High-resolution cables Part number

MHR-5 BNC 26-260-xx

MHR-5P BNC (plenum) 26-378-xx

xixi

xi • Specifications, Accessories and Part #s A-5

xixi

Specifications, Accessories and Part #s, cont’d

A-6

RGB 168

xixi

xi • Specifications, Accessories and Part #s

xixi

Adapter Plates

A variety of optional architectural adapter plates for
pass-through connections may be ordered for these
interfaces. The RGB 168xi can hold up to four (4) input
adapter plates and two (2) output adapter plates. The
following configurations of adapters could be installed in
either interface:

Input adapter plates:

• four input adapter plates with a “plate size” of one,

• two input adapter plates with a plate size of one and
one input adapter plate with a plate size of two, or

• two input adapter plates of plate size two.

Output adapter plates:

• one output adapter plate with a plate size of two, or

• two output adapter plates of plate size one.

Typical adapter plates are shown below..

Blank Plate (no connector)

Single Space

2 - BNC

3 - BNC

2 - RCA to Solder Cups

3 - RCA to Solder Cups

2 - S-video

2 - F Connectors

2 - 1/4" Stereo Phono

2 - 3.5mm Stereo Mini

Blank Plate (no connector)

1 - D-9 Pass Through Connector

1 - HD-15 Pass Through Connector

1 - 3-pin XLR Connector

Architectural adapter plates

Double Space

5 - BNC (Double)

2 - RJ-11

RGB 168

xixi

xi • Specifications, Accessories and Part #s A-7

xixi

Specifications, Accessories and Part #s, cont’d

A-8

RGB 168

xixi

xi • Specifications, Accessories and Part #s

xixi

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, r
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:

epair or replace said products or components,

USA, Canada, South America,
and Central America:

Extron USA
1001 East Ball Road
Anaheim, CA
U.S.A.

Europe, Africa, and the Middle East:

Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands

Asia:

Extron Asia
135 Joo Seng Road #04-01
PM Industrial Bldg.

Singapore 368363
Singapore

This Limited Warranty does not apply if the fault has been caused by misuse, impr
handling care, electrical or mechanical abuse, abnormal operating conditions or non­Extron authorized modifi cation to the product.

If it has been determined that the product is defective, please call Extron and ask for an
Applications Engineer at [phone] (USA), 31.33.453.4040 (Europe), 65.6383.4400
(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 pr
contact in case there are any questions.

Extron Electronics makes no further warranties either expressed or implied with r
to the product and its quality, performance, merchantability, or fi tness 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 fr
provisions of this warranty may not apply to you.

92805

oblem, as well as the name of the person to

om state to state and country to country, and that some

Japan:

Extron Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, T
Japan

China:

Extron China
686 Ronghua Road

Songjiang District
Shanghai 201611
China

Middle East:

Extron Middle East
Dubai Airport Free Zone
F12, PO Box 293666
United Arab Emirates, Dubai

okyo 102-0082

oper

espect

Extron USA - Wes t

Headquarters

+800.633.9876

Inside USA / Canada Only

+1.714.491.150 0
+1.714.491.1517 FAX

Extron USA - Eas t

+800.633.9876

Inside USA / Canada Only

+1.9 19.8 63 .179 4
+1.9 19.8 63 .179 7 FAX

Extron Europe

+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 FA X

Extron Japan

+81.3.3511.76 55
+81.3.3511.76 56 FAX

© 2008 Extron Electronics. All rights reserved.

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