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WIRING DEVICES
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Installation (TV sockets)
Product performance, systems compatibility
Isolated Outlets are intended for use where
safety isolation (rated at 2000V ac) is required to
provide protection against faults occurring within
any mains powered product used on different
parts of the distribution system. They are not
suitable for use in systems where DC signals
are passed through the socket, (e.g. where
masthead/headend equipment is controlled by
receiver/decoder equipment).
Diplexer Outlets are used in distribution
systems where both TV and FM band signals
are combined on a single aerial downlead. The
filtering in the diplexer separates the appropriate
signals and feeds them through to the relevant
output connection port.
Cable Routing and Use of Cable Clamp
Sharp bends in the cable must be avoided
during installation. The single TV/FM socket is
fitted with a cable clamp that can be fixed on
either side of the termination position to facilitate
this.
When tightening the screening braid clamps
ensure that the cable is firmly gripped and that
the inner insulation is not squashed flat beyond
a slight oval shape.
Safety Information
TV outlets or modules must not be installed
in the same enclosure as equipment rated in
excess of 50V, (e.g. mains rated 13A sockets or
switches).
Method of installation of TV and FM aerial connection by using MK co-
axial socket outlet and only one downlead.
Conventional distribution system for TV and FM signals using a single
aerial downlead.
The signals from the TV and FM aerials and the satellite dish are
combined together using two products. The first combines the TV
and FM signals and the second adds the Sky signal to the TV/FM
signal and provides a DC control path to power the LNB unit on
the satellite dish. (These products are not supplied by MK).
The single aerial down lead feeds into the triplexer (black lines in
wiring diagram).
The separated satellite signal is then fed to the decoder. The
decoded satellite signal is then fed into the VCR along with the
TV signal from the Triplexer. The output signal from the VCR then
feeds into the TV and also back to the single outlet and onto the
distribution amplifier (black lines in wiring diagram).
The single cable back-feed then feeds back to the input of a multi
way distribution amplifier, (typically located in the loft or garage)
(red lines in wiring diagram).
Each individual output from the distribution amplifier is then fed
to the individual rooms in the house to a standard TV (single
or diplexer) outlet to which the TV/VCR and/or Hi-Fi can be
connected (blue lines in wiring diagram).
1
2
3
4
FM
TV
SAT 1
DAB
TV
TV
TV
TV
VID
SKY/DIG
VID
TV DIST
HI-FI
SAT 2
1
4
4
4
2
3
Digital TV and Telephone Outlets
(Logic Plus and Modular Datacoms)
Wiring Devices Technical