Bang Olufsen Local Control System-A Operation Manual

LOCAL CONTROL SYSTEM

Master Control Link

Handbook

THIS MANUAL IS DESIGNED AS
AN AID FOR AUTHORIZED CUSTOM
INSTALLERS

NOTE: BUILDING AND ELECTRICAL CODES VARY
FROM LOCALITY TO LOCALITY, MAKE SURE
THAT THE INSTALLATION IS IN COMPLIANCE W [TH
APPLICABLE CODES, BANG & OLUFSEN SHALL NOT BE
BE LEGALLY RESPONSIBLE FOR INJURY OR DAMAG
CAUSED BY IMPROPER INSTALLATION,

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PREFACE

This handbook deals with Bang & Olufsen's Local Control System and AV
system, paying special attention to the installation requirements applying to
them. Consequently, this handbook is especially addressed to dealers and installers.

Any product, for example a stereo system, a PC, a natural gas system, etc . that
has to be incorporated into a network needs to have certain
requirements satisfied by the surrroundings in connection with its installation,
These requirements must ensure the optimal operation of the system after
installation.

The same apllies to Bang & Olufsen's Local Control System and AV system.
Although the requirements are not many, it is essential that they be known
since compliance with the basic requirements often determines whether or
not the system is able to operate once the installation has been completed.

This handbook gives a brief and precise introduction to the basic roles for the
product programme in 92/93 and for-future programmes. The rules must be
observed in connection with the installation of a Local Control System and/or
an AV system.

The handbook has been designed partially as a reference book but

the

entire

handbook should be read in order to obtain the total overview. Only

then will it serve its purpose as a reference book

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CONTENTS

2 READING INSTRUCTIONS

How should I read the handbook?

3 GENERAL DESCRIPTION OF LOCAL CONTROL SYSTEM AND AV SYSTEM

What is a Local Control System/AV system, and what can they do for me?

4 TECHNICAL DESCRIPTION

Description of various cables which are typically used in AV &. Local Control
Systems

6 PRODUCT DESCRIPTION

Description of X-tra kit

9 SETUPS

Description of recommended Local Control System/AV system setups, special
setups and option programming

13 SETUPS WITH LIGHT CONTROL

Description of how Light Control can be included in the recommended
setups

14 DIMENSIONING OF LOCAL CONTROL SYSTEM/AV` SYSTEM

Description of how many X-tra kits and how much cable may be used

16 INSTALLATION TYPES

Description of various installation types

18 INSTALLATION TIPS

Practical advice for use in connection• with installation

21 TROUBLE SHOOTING GUIDE

What could be wrong when the system will not operate

27 GLOSSARY

Description of specific words and abbreviations

29 ACCESSORIES LIST

1

READING INSTRUCTIONS

The hardware (plugs, cables, X-tra kits, etc.) used for connecting Bang &
OIufsen's products into a system is always the same, no matter if it is a
Beocenter 9500 and an MX 5500 that have to be connected or if it is a
Beomaster 7000 and an MX 5500, for example.

The handbook employs various symbols to illustrate audio products, video
products and speakers. Unless otherwise stated in the text, these symbols
merely have to be understood as covering one of these product areas and
not as the specific product which the illustration may depict.

Since the handbook is focusing particularly on the basic rules in connection
with the installation of the systems, variables which are specific to particular
products have been omitted to the greatest possible extent, This means that
the handbook will always be relevant in connection with installation of local
Control Systems and AV systems; both with regard to products launched
prior to the publication of the handbook and products that will be launched
later.

The basic rules applying to the AV and Local Control Systems will always he

the same.

If information specific toe particular product is required, please see Bang &
Olufsen's Product Configuration Guide. •

2

MASTER CONTROL LINK 3

GENERAL DESCRIPTION

What is an AV system?

When a Bang & Olufsen audio system and video system are interconnected,
they make up an AV system.

An AV system offers a number of possibilities which are not accessible if the
products are placed as independent products. For example, in an AV system
the sound can be moved from the TV to the audio system speakers; a
function that proves its excellence when the sound and the picture have to
merge into a higher synthesis. The sound from the audio system can similarly
be moved to the TV speakers. This function comes in handy if you wish to
record sound from the audio system on the video tape recorder, for example.

The interconnection of the audio and video systems is furthermore a
condition for distributing and operating video sources (antenna, cable,
decoders and video tape) to and from other rooms in the house.

What is a Local Control System?

Local Control System is a common denominator for those elements which
enable the distribution of sound and picture to different rooms in the house.
In other words, the Local Control System enables operation and enjoyment
of a centrally placed audio/video system from different rooms in the house.
Some of the basic elements included therein are:

The obligatory 7-conductor MCL cable and X-tra kits (transceivers, MCL 2A
relay boxes and MCL 2AV panels).

So, with a centrally placed audio system and a Local Control System it is
possible to listen to and operate e.g. a radio, CD player, tape recorder, etc.
from other rooms.

If the centrally placed audio system is connected with a video system, thereby
forming an AV system, a host of new possibilities are made available. This
further allows the distribution of video sources to other rooms. In addition to
listening to and operating the audio system from different rooms, it is also
possible to watch, listen to and operate the video system from other rooms.
For example, you can listen to the TV news through the speakers in the
kitchen; or you can watch and operate cable TV and the video tape recorder
via the TV in the bedroom. Encoded cable TV programmes can also be watched in
the local room, provided that a decoder is connected in the central room.
Another possibility is to listen to the radio via the TV in the bedroom, for
example.

AuxLinkcable

4

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TECHNICAL DESCRIPTION

The following section contains a brief description of the cabling typically
used in connection with an AV and Local Control System installation.

Pictures (cable, video tape recorder and ordinary TV broadcasts) are
distributed through a 75 ohm coaxial cable.

All plugs and sockets are illustrated from the solder side.

white = Datalink
blue = input, left channel
green = input, right channel
shield = signal ground
red = output, right channel
yellow= output, left channel
black = data ground

MCL cable between audio system
and 7-pin terminal strip:

green = signal, right channel
brown= ground, right channel
pink = DC supply
yellow= signal, left channel
grey = ground, left channel
white = Datalink
shield = data shield

white

blue

green
shield

red

yellow

black

7220163

7220163

7

6

3

154

2

7

6

3

1

5

4

2

terminal strip

grey

yellow

pink

brown

green

white

shield

LEFT

RHIGT

7220288

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MCL cable between audio system
and 8-pin wall socket:

brown = ground, right channel
green = signal, right channel
pink = DC supply
yellow= signal, left channel
grey = ground, left channel
white = Datalink
shield = data shield

8-pin DIN cable, Power Link cable,
for connection of the Master and
MCL 2P or Beolab amplifier:

green = signal, right channel
brown = signal, left channel
grey = power up/down pink
= overload
yellow= loudspeaker relay
shield = ground
white = Datalink

6 MASTER CONTROL LINK

PRODUCT DESCRIPTION

Below you will find a description of the individual elements included in the
Local Control system as well as their scope of application

Content

Application

Miscellaneous

X-TRA SPEAKER KIT

The X-tra speaker kit contains an MCL 2A relay box, a transceiver. a Beolink
1000 wall fixture and fittings for installation.

The X-tra speaker kit is used in those rooms where you wish to have sound
via passive speakers. The Beolink 1000 wall fixture is intended as a storage
place for the remote control terminal.

In addition to the content of the X-tra kit and the passive spacers, some
MCL cable and perhaps some plugs and connection boxes are required (
See the section on installation for further information, if required.)

When using the X-tra speaker kit they volume adjustment is common with
that in the Central room and any other X-tra speaker kits.