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3.34 Zone Splitters
Zone splitters allow you to divide any zone
into two separate areas. The Zone Splitter
acts as a remote speaker switch, controlled
by a DMS module within the zone, and
directs a chosen source input to either or
both sets of speakers.
To split a zone, a second set of speakers
and a Zone Splitter unit are required.
The following points must be considered
when planning and installing a Zone
Splitter system:
•
The Zone Splitter is a parallel speaker
switching device. Therefore, speakers with
8 ohm impedance MUST be used in both
areas A and B.
•
Only ONE Zone Splitter per zone may be
used.
•
When a Zone Splitter is used, both pairs of
speakers will share the same volume level
and source.
•
The switching of the speakers requires a
DMS module to be located in one of the
split zone areas.
Section 3 • System Planning
3.3 Zone Configuration
3.31 Basic Zone Complement
Each remote zone includes at least one
control code generator and a pair of
loudspeakers.
3.32 Control Code Generators
The code generator may be an RHS hand
held remote and a DMS module
combination. It can also be a stand-alone
KMS keypad. Details are in Sections 6.2
(RHS Hand-held Remote Control) and 6.3
(KMS Keypad).
Remember that the DMS module also
provides visual clues to total system
operation. Details are found in Sections
5.23 (Set-up Sequence) and 6.41
(Overview).
Most zones will use multiple control code
generators with the combination of one
DMS module and one KMS keypad being
the most common.
Mounting both the DMS module and
keypad in one double-width wall box
carries several advantages:
a) It simplifies the installation - all control
cables run to a single location.
b) It focuses the user on one location - he or
she either walks to the keypad or aims the
hand held remote at the wall-plate.
The DMS module reads infra-red signals
generated by the RHS hand-held remote
and, after translating them into a digital
code that is highly resistant to interference,
sends them to the S4.3 Controller. The KMS
simply translates key pushes into digital
code before sending them to the S4.3
Controller.
3.33 Loudspeakers
These will vary with installation
requirements and user expectations. The
S4.3 Controller’s amplifier sections are
optimized for impedance loads of 4 ohms
or higher.
Systemline Hi-Fi standard ceiling speakers
are an obvious choice; please ask for
details.
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