Extron electronics AVT 100 User manual

User’s Manual
© 2008 Extron Electronics. All rights reserved.
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
800.633.9876 714.491.1500
FAX [phone]
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort, The Netherlands
+800.3987.6673 +31.33.453.4040
FAX [phone]
Extron Electronics, Asia
135 Joo Seng Rd. #04-01
PM Industrial Bldg., Singapore 368363
+800.7339.8766 +65.6383.4400
FAX [phone]
Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
+81.3.3511.7655 FAX [phone]
www.extron.com
Analog TV and Cable Demodulator
68-905-01 Rev G
01 08
AVT 100

Precautions
Thissymbolisintendedto 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.
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.
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
dansleboîtierdel’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.
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.
Safety Instructions • English
Consignes de Sécurité • Français
Sicherheitsanleitungen • Deutsch
Dieses Symbol soll dem Benutzer in der im
Lieferumfang enthaltenen Dokumentation
besonders wichtige Hinweise zur Bedienung und
Wartung (Instandhaltung) geben.
DiesesSymbolsolldenBenutzerdaraufaufmerksam
machen, daß im Inneren des Gehäuses dieses
ProduktesgefährlicheSpannungen,dienichtisoliert
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.
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 qualifiziertem
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 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 verbrauchte Batterien nur durch den gleichen oder einen
vergleichbaren Batterietyp, der auch vom Hersteller empfohlen wird. Entsorgen
Sie verbrauchte Batterien bitte gemäß den Herstelleranweisungen.
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.
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.
Instrucciones de seguridad • Español
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 Building
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 [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 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.

ᅝܼ乏ⶹ噝Ё᭛
ᅝܼ乏ⶹ噝Ё᭛
䖭Ͼヺোᦤ⼎⫼᠋䆹䆒໛⫼᠋᠟ݠЁ
ⱘ᪡԰㓈ᡸ䇈ᯢDŽ
䖭Ͼヺো䄺⫼᠋䆹䆒໛ᴎ໇ݙᲈ
䴆ⱘ䰽⬉ˈ᳝㾺⬉䰽
⊼ᛣ
⊼ᛣ
䯙䇏䇈ᯢк
䯙䇏䇈ᯢк
噝⫼᠋Փ⫼䆹䆒໛ࠡᖙ乏䯙䇏ᑊ⧚㾷
᳝ᅝܼՓ⫼䇈ᯢDŽ
ֱᄬ䇈ᯢк
ֱᄬ䇈ᯢк
噝⫼᠋ᑨֱᄬᅝܼ䇈ᯢкҹ໛ᇚᴹՓ⫼DŽ
䙉ᅜ䄺噝⫼᠋ᑨ䙉ᅜѻક⫼᠋ᣛϞⱘ᠔᳝
ᅝܼ᪡԰䇈ᯢDŽ
䙓ܡ䗑ࡴ
䙓ܡ䗑ࡴ
噝ϡ㽕Փ⫼䆹ѻકଚ≵᳝᥼㤤ⱘᎹ݋៪
䗑ࡴ䆒໛ˈҹ䙓ܡ䰽DŽ
䄺
䄺
⬉⑤
⬉⑤
噝䆹䆒໛া㛑Փ⫼ѻકϞ󰵼ᯢⱘ⬉⑤DŽ䆒໛ᖙ⫼᳝
ഄ㒓կ⬉㋏㒳կ⬉DŽ㄀ϝᴵ㒓˄ഄ㒓˅ᰃᅝ䆒ᮑˈϡ㛑ϡ
⫼៪䏇䖛DŽ
ᢨᥝ⬉⑤
ᢨᥝ⬉⑤
噝ЎᅝܼഄҢ䆒໛ᢨᥝ⬉⑤ˈ䇋ᢨᥝ᠔᳝
໛ৢ៪Ḡ䴶⬉⑤ⱘ⬉⑤㒓ˈ៪ӏԩ᥹ࠄᏖ⬉㋏㒳
⬉⑤㒓DŽ
⬉⑤㒓ֱᡸ
⬉⑤㒓ֱᡸ
噝ཹ୘Ꮧ㒓ˈ䙓ܡ㹿䏽䏣ˈ៪䞡⠽᣸DŽ
㓈ᡸ
㓈ᡸ
噝᠔᳝㓈ׂᖙ乏⬅䅸䆕ⱘ㓈ׂҎ䖯㸠DŽ䆒໛
䚼≵᳝⫼᠋ৃҹ᳈ᤶⱘ䳊ӊDŽЎ䙓ܡߎ⦄㾺⬉
ϡ㽕㞾Ꮕ䆩೒ᠧᓔ䆒໛Ⲫᄤ㓈ׂ䆹䆒໛DŽ
䗮亢ᄨ
䗮亢ᄨ
噝᳝ѯ䆒໛ᴎ໇Ϟ᳝䗮亢ῑ៪ᄨˈᅗӀᰃ⫼
䰆ℶᴎݙᬣᛳܗӊ䖛⛁DŽϡ㽕⫼ӏԩϰ㽓ᣵԣ䗮亢ᄨDŽ
䫖⬉∴
䫖⬉∴
噝ϡℷ⹂ⱘ᳈ᤶ⬉∴Ӯ᳝⟚⚌ⱘ䰽DŽᖙ乏Փ
Ϣᆊ᥼㤤ⱘⳌৠ៪Ⳍ䖥ൟোⱘ⬉∴DŽᣝ✻⫳ѻⱘ
䆂໘⧚ᑳᓗ⬉∴
DŽ

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. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation. The Class A 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.
This unit was tested with shielded cables on the peripheral devices. Shielded
cables must be used with the unit to ensure compliance with FCC emissions
limits.
ໄᯢ
ㆁỀ䑩䑶㷑ᵻ"䷨󰶉␂澤♩䑠㱼䋰⟄ᵮ澤嬦󰶉␂⌰倾ṛ彡ㅑ㔡一䑶ⶳㆱɿ♩弚䤎〆󱂗ᵌ澤⌰倾晁壂䑩
ㅸ⬺₷ⶳㆱ愈⌗ⅈ⫟⌰垍䗅㋫㓾ɿ

Precautions, cont’d
AVT 100 • Table of Contents
Table of Contents
i
Chapter 1 • Introduction .......................................................... 1-1
About This Manual ................................................................ 1-2
About the AVT 100 Demodulator .................................. 1-2
Models .................................................................................... 1-2
Features .................................................................................. 1-2
Application diagram .............................................................. 1-4
Chapter 2 • Installation and Connection ..................... 2-1
Mounting the AVT 100 ........................................................ 2-2
Tabletop use ........................................................................... 2-2
Rack mounting ....................................................................... 2-2
UL requirements for rack mounting ............................... 2-2
Rack mounting procedure ............................................... 2-3
Rear Panel Features .............................................................. 2-4
Wiring and Connecting the RS-232 Cable ................. 2-6
Connecting the AVT 100 to the IR Link ....................... 2-7
Connecting the AVT 100 to a MediaLink™
Controller ................................................................................... 2-9
Chapter 3 • Operation................................................................ 3-1
Front Panel Features ............................................................ 3-2
Using the Control Buttons ................................................ 3-2
Changing the channel ........................................................... 3-2
Initiating Auto-Scan .............................................................. 3-3
Adding and deleting channels.............................................. 3-3
Special Functions ................................................................... 3-3
Locking front panel controls (executive mode) ................... 3-3
Selecting tune or preset mode ............................................. 3-4
Presets .................................................................................... 3-4
Muting the audio and video outputs ................................... 3-5
Selecting the audio output mode ........................................ 3-5
Selecting the PAL broadcasting standard ............................ 3-6
Selecting the cable TV frequency (NTSC only) ..................... 3-6
Using the IR Remote for AVT 100 .................................. 3-6
Locking IR remote access ....................................................... 3-7
Installing batteries in the IR remote .................................... 3-7
Buttons on the AVT 100 IR Remote Control ........................ 3-8
Selecting a channel (tuning) using the IR remote ............... 3-9
Saving a preset using the IR remote .................................. 3-10

AVT 100 • Table of Contents
Table of Contents, cont’d
AVT 100
Chapter 4 • Software Configuration and Control 4-1
Using Simple Instruction Set (SIS™) Commands .... 4-2
Host-to-AVT communications ............................................... 4-2
AVT 100-initiated messages .................................................. 4-2
Error responses ...................................................................... 4-3
Using the command/response tables.................................... 4-3
Symbol definitions ................................................................. 4-4
Command/response table for SIS commands ....................... 4-5
Command/response table for special function SIS
commands .............................................................................. 4-8
Advanced Instruction Set commands ................................ 4-13
Windows®-Based Control/Configuration
Software ................................................................................... 4-14
Compatibility ....................................................................... 4-14
Installing the software ........................................................ 4-14
Starting the software program........................................... 4-16
Using the Windows-based control/configuration
software Help ...................................................................... 4-17
Appendix A • Specifications, Parts, and
Accessories .................................................................................. A-1
Specifications ......................................................................... A-2
Models ........................................................................................ A-5
Included Parts ......................................................................... A-5
Optional Accessories........................................................... A-5
Appendix B • Channel Frequencies .................................. B-1
PAL Format Channels ........................................................... B-2
PAL channels .......................................................................... B-3
NTSC Format Channels..................................................... B-9
NTSC TV channels ................................................................ B-10
NTSC cable channels — Standard frequency .....................B-11
NTSC cable channels — IRC frequency ............................... B-12
NTSC cable channels — HRC frequency.............................. B-13
NTSC TV channels — Japan standard frequencies ............. B-14
NTSC cable channels — Japan standard frequencies ........B-15
1
Chapter One
Introduction
About This Manual
About the AVT 100 Demodulator
ii
All trademarks mentioned in this manual are the properties of their respective owners.
68-905-01 Rev. G
01 08

AVT 100 • Introduction
AVT 100 • Introduction
Introduction
1-3
About This Manual
This manual provides information on the Extron AVT 100
Analog TV and Cable Demodulator, and discusses how to
install and operate it.
About the AVT 100 Demodulator
The Extron AVT 100 is an audio/video demodulator that
provides cable and television tuning for integration into
professional A/V environments. The TV band provides
reception of over-the-air TV (antenna) and CATV (cable)
channels. Channels 2 through 125 are available in the United
States and other countries that use the NTSC standard.
Channels 48 through 855 are available in countries in which the
PAL standard is used.
NIn Japan, which uses the NTSC standard, channels 1
through 62 (antenna) and 1 through 63 (cable) are
available, on different frequencies from the USA.
The AVT 100 may receive signals from a cable input or TV
antenna. It is controllable from the front panel or through
software via the RS-232 port.
The AVT 100 also provides wired IR for extended range infrared
(IR) operation. The optional AVT 100 IR Remote Control and
the Extron IR Link Signal Repeater are available separately to be
used in conjunction with this feature.
Models
Two models of the AVT 100 are available:
• AVT 100N (NTSC version) —Handles NTSC signals
only. This version is used in the USA, Japan, and some
other countries.
• AVT 100P (PAL version) —Handles PAL signals only.
This version is used in Great Britain and other nations that
use the PAL standard.
These two models have different radio frequency (antenna)
connectors, but in all other functionality, they are identical.
Features
Antenna (TV) and cable (CATV) channel reception — A full
range of antenna and cable channels are available.
AVT 100N (NTSC):
Antenna 2-69
Cable 2-125
1-2
AVT 100N (NTSC) Japan frequencies:
Antenna 1-62
Cable 1-63
AVT 100P (PAL):
Antenna and cable 48-855
RS-232 interface — Enables you to enter Simple Instruction Set
(SIS™) commands and interact with the Windows®-based
control software. The optional IR Link is also connected to
this port.
IR Remote Control — Enables control of the AVT 100 via a
hand-held remote control device that sends infrared
signals to the AVT from a distance of up to 30 feet.
Communication is provided through an infrared receiver
and hard wiring. The Extron IR Link is an option,
available separately.
Balanced and unbalanced audio output — Enables you to use a
wide variety of output devices without the need for
conversion.
Savable configuration files — Lets you save the system
configuration as a file. The saved configuration can
subsequently be reloaded to the AVT 100 to restore all
settings at once.
Power supply — An external desktop 12 VDC power supply
connects to the back panel of the unit via a two-pin captive
screw connector and accepts 100 to 240 VAC.
Enclosure — Compact, 1U, quarter-rack enclosure, 6.7 inches in
depth.
Cable/antenna (TV) DIP switch — Enables switching between
cable and antenna modes.
99 presets —Presets can be associated with channels using SIS
programming, the IR remote control, or the AVT
Windows-based control software. The AVT provides 99
programmable channel presets for TV and 99 for cable.
Stored presets can be used to recall the corresponding
cable or antenna channel in preset mode. With SIS
commands, presets can be recalled in tune mode as well as
preset mode.
Audio and video muting —Enables the audio and video
outputs to be individually muted through the appropriate
SIS command, the IR remote, or the Windows-based
control software.

AVT 100 • Introduction
Introduction, cont’d
AVT 100
2
Chapter Two
Installation and Connection
Mounting the AVT 100
Rear Panel Features
Wiring and Connecting the RS-232 Cable
Connecting the AVT 100 to the IR Link
Connecting the AVT 100 to a MediaLink™ Control Module
1-4
Mono audio —Can be selected by SIS commands or the
Windows-based control software. When Mono is disabled
(the factory default), stereo reception is enabled.
Front panel security lockout (executive mode) — Locks out
users from all front panel functions. Executive mode can
be enabled via SIS commands or the Windows-based
control software.
IR remote access On/Off — Locks out users from controlling
the AVT 100 through the IR remote control. This access
can be turned on and off via SIS commands or the
Windows-based control software.
Rack mountability — The AVT 100 can be mounted on a rack
shelf, using the optional mounting accessories. It can also
be placed on a tabletop, for which four self-adhesive feet
are provided.
PAL standard selection — Lets you select the appropriate PAL
broadcasting standard for your area.
CATV frequency selection (NTSC only) — Lets you select the
NTSC cable frequency used by your cable provider.
Application diagram
The following application diagram gives an example of how the
various supported devices can be connected to the AVT 100.
Use it as a guide for all AVT 100 connections.
POWER
12V
0.5AMAX
L R
RS-232 / IR
Tx Rx IR +12
VID
RF
CABLE
RESERVED
TV
C
US
US
LISTED
1T23
I.T.E.
ANT IN
OUTPUT
Control System
Plasma/LCD Display
Cable
Feed
Optional
IR Remote
Antenna
RF
Audio
or
Extron
AVT 100
Analog TV/Cable
Demodulator
ENTER
Channel
MUTE
Audio
Video
45
89
TV TUNE
PRESET
67
023
AVT100 REMOTE
1
AVT 100 application example

AVT 100 • Installation and ConnectionAVT 100 • Installation and Connection
Installation and Connection
2-3
Mounting the AVT 100
The AVT 100 demodulator can be set on a table or mounted on a
rack shelf.
Tabletop use
Four self-adhesive rubber feet are included with the AVT 100.
For tabletop use, attach one foot at each corner on the bottom
surface of the unit, and place the unit in the desired location.
Rack mounting
For optional rack mounting, do not install the rubber feet.
Mount the AVT 100 on an RSU 129 Universal Rack Shelf Kit
(part #60-190-01)or an RSB 129 Basic Rack Shelf (part
#60-604-01).
UL requirements for rack mounting
The following Underwriters Laboratories (UL) requirements
pertain to the safe installation of the equipment in a rack.
1. Elevated operating ambient temperature — If the
equipment is 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 equipment in an
environment compatible with the maximum ambient
temperature (Tma = +113 °F, +45 °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.
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).
2-2
Rack mounting procedure
To rack mount the AVT,
1. If feet were previously installed on the bottom of the
AVT 100, remove them.
Use 2 mounting holes on
opposite corners.
(2) 4-40 x 3/16"
Screws
1U Universal Rack Shelf
Both front false faceplates
use 2 screws.
1/4 Rack Width Front False
Faceplate
1/2 Rack Width Front False
Faceplate
Mounting the AVT 100 on a rack shelf
2. Mount the AVT 100 on the rack shelf, using two 4-40 by
3/16" screws in opposite (diagonal) corners to secure the
unit to the shelf.
3. Install blank panels or other units in the remaining space
on the rack shelf.

Installation and Connection, cont’d
AVT 100 • Installation and Connection AVT 100 • Installation and Connection
Ridges
Smooth
Power Supply
Output Cord
SECTION A–A
AA
Ridges
Smooth
2-Pole Orange
Captive Screw Connector (12V)
Tie Wrap
3/16”
(5 mm) Max.
Power connector wiring
2
Radio frequency (RF) connector — Plug an antenna or CATV
cable into the 75 ohm F type female coaxial connector (for
NTSC), or into the 75 ohm female IEC 169-2 connector (for PAL).
3
Cable/antenna switch — Use this DIP switch to select between
cable (CATV) and antenna (TV) modes. Presets and NTSC
Auto-Scan channels are saved separately for antenna and CATV.
4
Composite video output connector — Plug a television or other
A/V output device into this female BNC connector.
5
Audio connector — Plug an audio output device into this 5-pole
captive screw connector. Balanced or unbalanced audio is
output on this connector.
Tip
Ring
Tip
Ring
Tip
Sleeve(s)
Tip
Unbalanced
Stereo Output
NO GROUND HERE.
NO GROUND HERE.
Balanced
Stereo Output
3/16” (5 mm)
max.
Do not tin
the wires!
Wiring the audio output connector
2-52-4
Rear Panel Features
The following figure shows the switches and connectors on the
rear panel of the AVT 100.
C US
POWER
12V
0.5A MAX
L R
RS-232 / IR
Tx Rx IR +12
VID
RF
CABLE RESERVED
ANT
ANT IN
OUTPUT
NTSC
AUDIO
7
86
234 5
1
AVT 100 rear panel
1
Power connector — Plug the external 12 VDC power supply
into this 2-pin, 3.5 mm captive screw connector. The power
supply is included with the unit. The figure on the next page
shows how to wire the connector.
CThe length of the exposed (stripped) copper wires is
important. The ideal length is 3/16"(5 mm).
Longer bare wires can short together. Shorter wires
are not as secure in the captive screw connectors
and could be pulled out.
CDo not tin the stripped power supply leads before
installing the captive screw connector. Tinned
wires are not as secure in the captive screw
connectors and could be pulled out.
WKeep the two power cord wires separate while
plugging in the power supply. Remove power
before wiring.
To verify the polarity before connection, plug in the power
supply with no load and check the output with a voltmeter.

Installation and Connection, cont’d
AVT 100 • Installation and Connection AVT 100 • Installation and Connection 2-7
2-6
CConnect the sleeve to ground ( ). Connecting the
sleeve to a negative (–) terminal will damage the
audio output circuits.
6
RS-232/IR connector — Use this five-pole connector for an
RS-232 connection to a PC for entering SIS commands and using
the Windows-based control software, and/or for connecting the
wired IR Link. See “Wiring and Connecting the RS-232 Cable,”
on the next page, for information on connecting to this port.
7
Reserved switch — This is an extra DIP switch that is not used.
8
Version label — Indicates the version, PAL or NTSC, of the
AVT 100.
Wiring and Connecting the RS-232 Cable
To connect your computer or control system to the RS-232
connector, use a male 9-pin, D-to-bare-wire RS-232 cable or a
universal control cable (UC 50', UC 100', or UC 200'). One end
of the UC cable is terminated with a female 9-pin, D connector,
and the other end is unterminated. Wire the unterminated end
to the provided five-pin captive screw plug.
The following diagram shows the UC cable’s pin assignments.
1
5 9
6
7
6
5
4
3
2
1
8
9
Purple
Blue
Yellow
Orange (Rx)
Red (Tx)
Brown
Gray
Black
Connector Shell
Pin #
Color
UC Cable
Shield
Computer
or Control
System
AVT 100
Tu n e r
Green ( )
UC cable pin assignment color codes
1. Wire the RS-232 cable to the five-pole captive screw
connector, provided with the AVT 100, as described below
(see the illustration on page 2-7). Connect only the red,
orange, and green wires in the cable; and use only the first
three pins on the connector, starting at the left.
a. Connect the red wire to the first pin on the left,
which plugs into the Tx (Transmit) port.
b. Connect the orange wire to the second pin, which
plugs into the Rx (Receive) port.
c. Connect the green wire to the third pin, which plugs
into the ground port, marked with this symbol:
2. Plug the five-pole connector into the RS-232/IR receptacle
on the AVT 100 rear panel.
The following diagram shows how to connect your PC or
control system to the RS-232/IR port.
RS-232/IR
Computer or
Control System
RS-232 Port
AVT 100 Tuner
Rear Panel
RS-232/IR Port
Connect a ground wire
between the AVT 100 and the
computer or control system.
If you use cable that has a
drain wire, tie the drain wire
to ground at both ends.
Tx Rx IR + 12V
Ground ( ) Green
Transmit (Tx) Red
Receive (Rx) Orange Transmit (Tx)
Receive (Rx)
Wiring the AVT 100 to a PC or control station
through the RS-232/IR port
Connecting the AVT 100 to the IR Link
The optional IR Link Infrared Signal Repeater can be connected
directly to an AVT 100. To wire the IR Link for use with your
AVT 100,
1. Prepare the site and install a wall box, following the
directions in the IR Link User’s Manual, provided with your
IR Link equipment.
2. Cut a length of 150' (45 m) or less of Extron Comm-Link
(CTL or CTLP) cable to go between the AVT 100 and the IR
Link.
3. Attach a 3.5 mm, 5-pole captive screw connector to each
end of the cable. Only three wires (between pins A, B, and
D on the IR Link end, and pins Ground, IR, and +12 V on
the AVT 100 end) are required. Wire the cable as shown in
the illustration on the next page. Connectors are included
with the IR Link, but the cable must be purchased
separately.
4. Plug the 5-pole connector into one of the IR Link’s
communications connectors.

Installation and Connection, cont’d
AVT 100 • Installation and Connection AVT 100 • Installation and Connection
2-8
5. Plug the other end of the cable into the RS-232/IR port on
the rear panel of the AVT 100.
CDo not connect more than one IR Link (either in
parallel or in series) to a demodulator.
POWER
12V
0.5A MAX
L R
RS-232 / IR
Tx Rx IR +12
VID
RF
CABLE RESERVED
ANT
ANT IN
OUTPUT
AUDIO
AVT 100 Rear Panel
IR Link
AVT 100 Remote
SIGNAL
IR LINK
Channel
TV TUNE
AVT100 REMOTE
PRESET
Video Audio
0 1 2 3 4 5 6 7 8 9 ENTER SAVE
150' (45 m) maximum
MUTE
Using the AVT 100 IR Remote with the IR Link
The following diagram shows how to wire the AVT 100 to use
the infrared remote control with the optional IR Link.
POWER
12V
0.5A MAX
L R
RS-232 / IR
Tx Rx IR +12
VID
RF
CABLE RESERVED
ANT
ANT IN
OUTPUT
Modulated IR
+12 VDC
Ground ( )
D
B
A
IR
12
AVT 100 Rear Panel
IR Link Rear Panel
AVT 100 Remote
Channel
TV TUNE
AVT100 REMOTE
PRESET
Video Audio
0123 4567 8 9 ENTER SAVE
MUTE
Wiring the IR Link to the AVT 100
NThe ground pin is shared between RS-232 control and
the IR Link connection.
2-9
Connecting the AVT 100 to a MediaLink™
Controller
You can hard wire an MLC MediaLink™Controller’s modulated
IR output connector directly to the AVT 100 to provide remote
control of the AVT.
Follow these steps to connect the AVT 100 to an MLC. See the
diagrams on the next page for examples.
1. Cut a length of 150' (45 m) or less of Extron Comm-Link
(CTL or CTLP) cable, which will go between the AVT 100
and the MediaLink controller.
2. Attach the provided 3.5 mm, 5-pole connector to the end of
the cable that will attach to the AVT 100, connecting one
wire to the center pin (which will plug into the AVT’s
ground connector pin, marked with ), and another wire
to the pin to the right of the center ground pin. (This pin
will plug into the AVT’s IR connector.) Plug this end of the
cable into the RS-232/IR connector on the AVT’s rear
panel.
3. On the other (MediaLink controller) end of the cable, do
either of the following:
• Attach the cable’s corresponding wires to the ground
and IR output pins of the captive screw connector
that will plug into the MLC. Plug this end of the
cable into the IR connector on the MLC’s rear panel.
• Attach the cable’s wires directly to the ground and IR
output pins on the MLC’s rear panel.
4. Using Global Configurator software, program the MLC
with the proper IR drivers for the AVT 100. Refer to your
MediaLink controller user’s manual for more information.
NIf the AVT 100 does not respond to commands from the
MediaLink controller, a 1k ohm resistor may be required
between the ground and IR pins on the AVT 100.
This resistor is required when you are using an MLC 52
to control the AVT.

Installation and Connection, cont’d
AVT 100 • Installation and Connection
AVT 100
3
Chapter Three
Operation
Front Panel Features
Using the Control Buttons
Special Functions
Using the IR Remote Control for AVT 100
2-10
POWER
12V
0.5A MAX
L R
RS-232 / IR
Tx Rx IR +12
VID
RF
CABLE RESERVED
ANT
ANT IN
OUTPUT
Modulated IR
1K Resistor
Ground ( )
D
B
IR
AVT 100 Rear Panel
MLC 52
Rear Panel
Wiring the AVT 100 to an MLC 52
POWER
12V
0.5A MAX L R
RS-232 / IR
Tx Rx IR +12
VID
RF
CABLE RESERVED
ANT
ANT IN
OUTPUT
Modulated IR
Ground ( )
D
B
IR
AVT 100 Rear Panel
Here
or here
MLC 226 IP Bottom Panel
A B C D E
DISPLAY
RS-232/IR RS-232 12V
CM/IR/SCP
A B C D E
MLSPWR
AB
Tx/IR
Rx
GROUND
PWR SNS
GROUND
+12V OUT
Rx
Tx
GROUND GROUND
+12V IN
+12V OUT
GROUND
CONT MOD
IR IN
SCP COM
NORMALLY OPEN
1 2
COMMON COMMON COMMON GROUND
Tx/IR Tx/IR Tx/IR
GROUND GROUND
A
RELAYSIR/SERIAL OUT
34
B
5 6
CA BC
Wiring the AVT 100 to an MLC 226 IP
NThe MLC can also control the AVT 100 via an optional
IR Emitter. Refer to your MLC user’s manual for
information on connecting the emitter.

AVT 100 • Operation
AVT 100 • Operation
Operation
3-3
Front Panel Features
The NTSC and the PAL versions of the AVT 100 have the same
front panel with identical components and appearance. The
following features and functions are available on the AVT 100
front panel.
C US
TV/CABLE TUNER
AVT 100
CHANNEL
3
2
1
AVT 100 front panel
1
Digital display — This 3-digit, alphanumeric LED display
indicates the antenna TV or CATV channel being received (in
Tune mode) or the selected channel preset (in Preset mode).
2
IR receiver (not visible from the exterior of the unit) — This
sensor receives commands via infrared signals from the optional
AVT 100 IR Remote Control.
3
Channel up and down buttons — These push-buttons are used
to increment or decrement the channel or preset number. You
can also activate Auto-Scan by pressing and holding both of
these buttons simultaneously for 2 seconds (see “Initiating
Auto-Scan” on the next page).
Using the Control Buttons
Changing the channel
If the AVT 100 is in Tune mode (factory default):
• Press the up or down Channel button to tune to the desired
channel. The current channel number is displayed in the
3-digit LED display.
• Press and hold down one of the Channel buttons to change
the channels rapidly until the button is released. When the
highest channel number available is reached, the display
restarts numbering at the lowest channel number.
3-2
If the AVT 100 is in Preset mode (available only by SIS
command, the Windows-based control software, or the
IR remote control), you can change only to a preset channel. To
change the preset, press the Channel buttons to display the
numbers of the programmed presets in incremental or
decremental order.
Initiating Auto-Scan
When Auto-Scan is enabled, the AVT 100 scans all channels and
saves to memory those with an active signal.
To initiate automatic scanning, press and hold both Channel
buttons. After about 2 seconds, the AVT 100 scans through the
channels and saves them to memory.
Adding and deleting channels
Auto-Scanned channels can be added to or removed from
memory individually by using SIS commands or the Windows-
based control software. (See chapter 4, “Software Configuration
and Control,” for further information.)
Special Functions
The AVT 100 offers some special functions that are accessible
only by using SIS commands, the AVT 100 Remote, and the
Windows-based control software. Refer to chapter 4, “Software
Configuration and Control,” or the AVT 100 help file for the
commands to enable these functions.
Locking front panel controls (executive mode)
Executive mode disables all front panel controls, locking out the
user from those functions. Putting the AVT 100 in this mode
enhances security by protecting against inappropriate or
accidental changes to settings.
When the AVT 100 is in executive mode, all serial port
commands remain enabled.
When executive mode is enabled, the AVT 100 displays the
following message on the digital display for 2 seconds:
Any attempt to use the front panel buttons while the AVT 100 is
in executive mode causes the LOC (Locked) message to flash.

AVT 100 • Operation
Operation, cont’d
AVT 100 • Operation 3-5
3-4
When executive mode is disabled, the AVT 100 displays the
UNL (Unlocked) message:
Selecting tune or preset mode
Two channel selection modes are available: Tune and Preset.
You can use the Windows-based control software, SIS
commands, or the AVT 100 Remote to switch between modes.
• In Tune mode, the Channel up and down buttons
increment and decrement by one channel with each press
of the button. If a button is held down for 2 seconds, the
channels tune rapidly up or down until the button is
released. Tune mode is the factory default.
• In Preset mode, the Channel buttons step up or down
through presets that have been associated with channels
via SIS commands, the AVT 100 Remote, or the Windows-
based control software.
NPresets can be recalled via SIS commands, the Windows-
based control software, or the AVT 100 Remote in both
tune mode and preset mode.
Presets
The AVT 100 provides 198 programmable presets—99 for
antenna and 99 for cable. Presets are associated with channels
by SIS commands (see chapter 4, “Software Configuration and
Control”), the AVT 100 Remote (see “Using the IR Remote
Control for AVT 100,” later in this chapter), or via the Windows-
based control software (see the software’s help file).
Channel presets that are programmed while the AVT is in either
antenna or CATV mode remain exclusive to the mode in which
they were saved.
The following table shows the ranges of channel numbers that
may be preset.
NTSC
DIP Switch
Channel #
NTSC Japan PAL
Antenna Cable Cable Antenna Antenna
and Cable
2 to 692 to 125 1 to 62 1 to 63 48 to 885
Channels available for presetting
When the AVT 100 is in tune mode and a preset is recalled via
the appropriate SIS command, the AVT 100 Remote, or the
Windows-based control software, a stored preset recalls the
cable or antenna TV channel that was programmed for it. When
you select a preset in either tune or preset mode, its preset
number is displayed for 2 seconds. Then the display changes to
the channel number associated with the selected preset.
Example: If preset 30 is selected via the Channel buttons in
Preset mode, the digital display shows the following:
After 2 seconds, the digital display shows the channel number
(28 in this example) associated with preset number 30.
To overwrite a preset and change its channel, enter the SIS
command or the Windows-based control software selection, or
press the appropriate buttons on the IR remote control to save a
different channel to that preset number. See chapter 4,
“Software Configuration and Control, for information on
programming the presets using SIS commands.
Muting the audio and video outputs
Audio and video outputs can be individually muted through
the appropriate SIS command, the IR remote control, or the
Windows-based control software. (See chapter 4, “Software
Configuration and Control” or the AVT 100 help file for further
information.)
Selecting the audio output mode
You can select the audio output mode (mono or stereo) using SIS
commands or the Windows-based control software. (Mono is
the factory default.)
On PAL models, the following four audio selections are
available if a dual channel is detected:
• L-L — Select the left audio channel for dual mono output.
• R-R — Select the right audio channel for dual mono
output.

AVT 100 • Operation
Operation, cont’d
AVT 100 • Operation
•L-R—Select the left input channel for left output and the
right input channel for right output.
•R-L—Select the right input channel for left output and
the left input channel for right output.
(See chapter 4, “Software Configuration and Control,” for
information on the SIS commands for audio mode selection. To
switch audio output modes using the Windows-based control
software, refer to the help file.)
Selecting the PAL broadcasting standard
There are several different PAL broadcasting standards. You
can select the appropriate standard using SIS commands (see
chapter 4, “Software Configuration and Control) or the
Windows-based control software (see the software program’s
help file).
Selecting the cable TV frequency (NTSC only)
You can select the CATV frequency (Standard, IRC, HRC, or
Japan standard) so that your AVT 100 is compatible with the
frequency used by your cable provider. You can select the
frequency using SIS commands (see chapter 4, “Software
Configuration and Control”) or the Windows-based control
software (see the software program’s help file).
Using the IR Remote Control for AVT 100
The optional hand-held AVT 100 IR Remote Control lets you
remotely perform many of the functions that are also available
through the front panel buttons, SIS commands, and/or the
Windows-based control software. The AVT responds to
commands from the AVT 100 Remote as if the corresponding
button were pressed on the front panel, or the corresponding
SIS command or Windows-based control software selection
were entered.
From a distance of no more than 30 feet, the remote control
sends infrared (IR) signals to the AVT 100 through the tuner’s
front panel. The IR receiver is located to the right of the channel
display, but is not visible from in front of the AVT 100.
The infrared remote receiver can receive the signal if it is sent
from within a 40 degree arc to the right or left of direct line of
sight between the remote and the AVT 100 receiver. See the
diagram below.
TV/CABLE TUNER
AVT 100
CHANNEL
AVT 100
40 40
30 feet
maximum
AVT Remote
Channel
TV TUNE
MUTE
AVT100 REMOTE
PRESET
Video Audio
0 12 3
4 5 6 7
8 9 ENTER SAVE
Area for remote signal reception
NThe AVT 100 must be plugged in before you operate the
remote control. Setup operations cannot be performed
from the remote.
Locking IR remote access
The AVT 100 Remote Control can be set to lock out users from
using it to control the AVT 100. This remote access can be
turned on and off via SIS commands or the Windows-based
control software. When remote access is set to Off, all AVT 100
controls remain available through other means (SIS commands,
Windows-based control software, and the front panel).
Installing batteries in the AVT 100 Remote
Install two AAA batteries in the AVT 100 Remote Control as
shown below.
Installing batteries in the AVT 100 Remote
3-6 3-7

AVT 100 • Operation
Operation, cont’d
AVT 100 • Operation 3-9
Buttons on the AVT 100 IR Remote Control
The following functions are available through the buttons on
the AVT 100 Remote Control.
CHANNEL
CHANNEL TUNE
MUTE
AVT 100 REMOTE
PRESET
VIDEO AUDIO
0123
4567
8 9 ENTER SAVE
1
8
6
5
4
7
3
2
Buttons on the AVT 100 Remote Control
1
Channel selection (0 through 9) — In tune mode, press these
number buttons to specify a channel number, then press Enter
to select it.
In preset mode, pressing these buttons also selects the channel
whose number(s) you pressed. The buttons do not select preset
numbers.
2
Channel up/down — Press the up and down arrows on this
rocker button to increment and decrement the channel or preset
number.
In tune mode, pressing either part of this button displays the
adjacent channel number. If an Auto-Scan has been performed,
pressing the Channel button causes the display to cycle between
the channels that were set by the scan for the mode (TV or
cable) in which the scan was done. (In this case, the adjacent
channel may not be available for display.)
In Preset mode, the next or previous preset channel is displayed,
depending on which part of the button you pressed. The
AVT 100 briefly displays the preset number preceded by a “P,”
then it displays the channel number associated with that preset.
If no presets have been defined when the Channel button is
pressed, the display shows “P00,” then the channel number to
which the AVT 100 was set before entering preset mode.
NThe Channel up/down button applies to antenna (TV)
and cable modes. Use the DIP switch on the rear panel
to switch between these modes.
3
Video Mute — Press this button to toggle video muting on and
off. When muting is on, video output is mute.
4
Audio Mute — Press this button to toggle audio muting on and
off. When muting is on, audio output is mute.
5
Tune — Press this button to switch to tune mode. In tune mode,
the Channel buttons switch between channel numbers.
6
Preset — Press this button to switch to preset mode. In preset
mode, the Channel buttons switch between preset channels.
7
Save — After keying in a preset number, press this button to
save the currently selected channel as a preset.
8
Enter — After keying in a channel number, press this button to
switch to that channel.
Selecting a channel (tuning) using the IR remote
To select or change a channel using the AVT 100 IR Remote
Control,
1. Using the IR remote channel selection number buttons in
the same way you would use the number keys on a
calculator, enter the number of the desired channel.
Example: To change to channel 105, press the buttons
numbered 1, then 0, then 5.
2. Press the Enter button to activate the channel change. If
the number you entered is a valid channel, the AVT 100
switches to it, and the number remains displayed on the
AVT 100 front panel.
If you enter an invalid (out of range) channel number, after
3 seconds the front panel display returns to the channel
number that was displayed previously and does not
change the channel.
3-8

AVT 100 • Operation
Operation, cont’d
AVT 100
4
Chapter Four
Software Configuration and
Control
Using Simple Instruction Set (SIS™) Commands
Windows®-Based Control Software
3-10
Saving a preset using the IR remote
To assign a channel number to one of the 198 available presets,
1. Switch to the channel that you want to assign. (See
“Selecting a channel (tuning) using the IR remote,” on the
previous page.)
2. Enter the preset number to which you want to assign the
current channel.
3. Press Save. The AVT 100 saves the preset, and displays
“P” and the preset number as confirmation. After
3 seconds, the display returns to the channel number that
you just saved.
NIf an invalid preset number is entered, no preset is saved.

AVT 100 • Software Configuration and Control
Software Configuration and Control
AVT 100 • Software Configuration and Control 4-3
The AVT 100 sends the copyright message when it first powers
on. Vx.xx is the firmware version number.
Error responses
If the AVT 100 is unable to execute a command it receives
because the command is invalid or contains invalid parameters,
the AVT returns an error response to the host. Error response
codes and their descriptions are as follows:
E01 – Invalid input channel number (out of range)
E10 – Invalid command
E11 – Invalid preset
E13 – Invalid value (out of range)
Using the command/response tables
The command/response tables on the following pages list valid
command ASCII and hexadecimal codes, the AVT 100’s
responses to the host, and a description of the command’s
function or the results of executing the command.
The ASCII to HEX conversion table below is for use with the
command/response tables.
ASCII to HEX Conversion Table
•
The AVT 100 demodulator 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 port. See chapter 2,
“Installation and Connection,” for information on connections.
The control device (host) can use the Extron Simple Instruction
Set (SIS™) commands or the Windows-based control software.
Using Simple Instruction Set (SIS™) Commands
Host-to-AVT communications
SIS commands consist of one or more characters per field. No
special characters are required to begin or end a command
sequence. You can enter these commands from your PC using a
communication software program such as HyperTerminal.
When the AVT 100 determines that a command is valid, it
executes the command and sends a response to the host device.
Most responses from the AVT 100 to the host (PC) 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.
AVT 100-initiated messages
When a local event such as a front panel selection takes place,
the AVT 100 responds by sending a message to the host,
indicating what selection was entered. No response is required
from the host. One of the following AVT 100-initiated messages
is displayed, depending on your version.
These messages are displayed only at power-up.
For the
X4
and
X1
values shown below, see “Symbol
definitions” on page 4-4.
NTSC version:
(C) Copyright 2006, Extron Electronics, AVT 100 – NTSC
Version, Vx.xx
Dip
X4
TVC
X1
PAL version:
(C) Copyright 2005, Extron Electronics, AVT 100 – PAL Version,
Vx.xx
Dip
X4
TVC
X1
4-2

Software Configuration and Control, cont’d
AVT 100 • Software Configuration and Control AVT 100 • Software Configuration and Control 4-5
Command/response table for SIS commands
Command ASCII Response Additional
(host to AVT) (AVT to host)
information
Memory preset
Save preset (active channel)
X3
, Spr
X3
X3
= Presets 01-99.
Recall preset
X3
. Rpr
X3
chn
X1
Save preset (user-specified channel)
X1
*
X3
, pre
X3
chn
X1
X1
channel values:
NTSC antenna: 002-069
NTSC CATV: 002-125
PAL antenna (TV) and CATV:
048-855
View all presets
Esc
.pre01chnxxx through pre99chnxxx
Video mute
Mute on 1B/b Vmt
X2
Mutes video output.
For
X2
: 0 = off; 1 = on.
Mute off 0B/b Vmt
X2
Unmutes video output.
View video mute status B/b Vmt
X2
Shows muting status.
Audio mute
Mute on 1Z/z Amt
X2
Mutes audio output.
Mute off 0Z/z Amt
X2
Unmutes audio output.
View the audio mute status Z/z Amt
X2
Shows muting status.
4-4
Symbol definitions
= CR/LF (carriage return/line feed) (hex 0D 0A)
= Soft carriage return (no line feed)
•= Space
Esc
= Escape key
X1
= Channel number
NTSC antenna: 002 – 069
NTSC cable: 002 – 125
NTSC Japan antenna: 001-062
NTSC Japan cable: 001-063
PAL antenna and cable: 48 – 855
X2
= Muting/Executive mode
0 = Off
1 = On
X3
= Presets 1 – 99 (The preset number cannot be more than two digits.)
X4
= Antenna or cable DIP switch setting
0 = Antenna (TV)
1 = CATV (cable)
X5
= PAL standard selection
0 = B/G (default)
1 = D/K
2 = I
X6
= Part number
X7
= Audio adjustment level: -63 through +12
X8
= Gain level: 0 – 12
X9
= Attenuation level: 0 – 63
If a command is not case-sensitive, this is indicated by showing the
command letter in uppercase, followed by a slash (/), then the same
letter in lowercase.
Examples: B/b, Z/z

Software Configuration and Control, cont’d
AVT 100 • Software Configuration and Control AVT 100 • Software Configuration and Control 4-7
Command/response table for SIS commands (continued) Command ASCII Response Additional information
(host to AVT 100) (AVT 100 to host)
Executive mode Disable 0X/x Exe0 Enables control via the front panel
by disabling executive mode.
Enable 1X/x Exe1 Locks out control from the
front panel.
View Status X/x Exe
X2
Shows whether executive mode is on
or off.
Query firmware version Query firmware version Q/q x.xx Shows current firmware
version. x.xx is the format of the version number.
Request Part Number Request AVT 100 part number N/n
X6
X6
values:
NTSC = 60-647-01. PAL = 60-647-02.
Reset to default settings (Zap command) Zap settings/memories
Esc
zXXX ZapXXX The default settings are:
Tune mode All presets removed Auto-Scan channels cleared
4-6
Command/response table for SIS commands (continued) Command ASCII Response Additional
(host to AVT) (AVT to host) information
PAL standard selection (PAL version only) Select standard
X5
S/s Sys
X5
Select PAL standard.
X5
values are:
0 = B/G (default). 1 = D/K. 2 = I.
View status S/s Sys
X5
Show the current PAL standard.
Request information Request channel number I/i TVC
X1
X1
= channel number.
Audio gain and attenuation (NTSC model only) Set specific gain
X8
G Aud
X7
Set the gain to
X7
dB.
Range for gain (
X8
) is 0 to +12.
Set specific attenuation
X9
g Aud
X7
Set the attenuation to
X7
dB.
Range for attenuation (
X9
) is 0 to +63.
Increment gain or attenuation +G/g Aud
X7
Set audio level to
X7
dB by increasing
gain or attenuation. Default audio level is 0dB.
Decrement gain or attenuation – G/g Aud
X7
Set audio level to
X7
dB by decreasing
gain or attenuation.
View gain or attenuation G/g
X7
View current audio level in dB.