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PROTECH

MODELS COVERED

INTEGRA III SYSTEM

MODEL 901

MODULAR MATRIX MIXING CARD

INSTALLATION & OPERATION MANUAL

901

The Model 901 Modular Matrix Mixing Card is

designed for use in professional audio applications. Each

unit features four (4) selectable music inputs, three (3)

paging inputs, one (1) line level output, and a switch

closure circuit for control of priority bypass relays.

Typical applications are public address systems in build-

ings such as airports, factories, hospitals, courthouses,

casinos, convention centers, libraries, hotels, racetracks,

and office buildings.

The mechanical construction of the Model 901 allows

mounting of up to ten (10) units in a standard Model 857B

Card Frame, or 9 units in a Model 858B Card Frame. Each

Model 901 card unplugs from the front of the card frame,

without the need for removing any wires from the rear of the

card frame. Spare units may be placed into service in a

matter of minutes.

Each Model 901 has four user adjustable features, in

addition to the actual wiring hierarchy. There are two level

adjustments, one for the page output level, and one for the

music output level. There is one four position DIP switch

for selecting any of four music input channels, or no music

input at all. The fourth adjustment is the push-on jumper

which allows public paging to enter a zone.

The Model 901 Modular Matrix Mixing Card is built using two

separate printed circuit board assemblies. The two boards are

connected together using a high quality, gold-plated 15 pin

connector. The main printed circuit board contains all audio

input and output connection points, the page output level

adjustment, the public add enable jumper, and all relay control

circuitry. The smaller printed circuit board is piggy-backed to

the main printed circuit board, and contains all background

music channel circuitry, including the channel selector switch

and the background music level adjusting trimpot.

All integrated circuits used in the Model 901are mounted in

plug-in IC sockets, to facilitate maintenance of the system.The

DC power supply connections are protected by self-resetting

electronic fuses. If a card should malfunction, the electronic

fuses will disconnect the card from the power supply. The

same type of fusing is provided in the priority bypass relay

control circuit.

Other INTEGRA III SYSTEM cards, such as distribution

amplifiers or compressors, may be used in the same card frame

assembly, to allow construction of complete audio systems.

Each of these products is designed to provide the user

with high quality audio, for years of uninterrupted

service.

1/02

Model 901 Shown

Protech Audio Corporation, PO Box 597, 192 Cedar River Road, Indian Lake, New York, 12842, Voice 518-648-6410 Fax 518-648-6395

www.protechaudio.com

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Resumo do Conteúdo

Página 1

PROTECHMODELS COVERED®INTEGRA III SYSTEMMODEL 901MODULAR MATRIX MIXING CARDINSTALLATION & OPERATION MANUAL901The Model 901 Modular Matr

Página 2 - ALIGNMENT

INSTALLATIONThe Model 901 Modular Matrix Mixing Card is designedto be mounted in the Model 857B Card Frame, or the Model858B Card Frame. The

Página 3 - Zone Output Hi

INTEGRA III SYSTEM®PROTECH161718192021222324252627282930123456789101112131415Zone Output LoZone Output HiGroundBypass Relay Control OutputGroundCode

Página 4 - BLOCK DIAGRAM

3412567 THIS CARD TO BE USED IN CONJUNCTION WITHPRIORITY PAGING SWITCHER CARD.STANDARD INTEGRA III SYSTEM CARD FRAMEMOUNTING.NOTE 2:NOTE 1:PUBLIC ADD

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Protech-audio 901 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Áudio Protech-audio 901. Protech Audio 901 User Manual Manual do Utilizador

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