PF1 Masthead Amplifier Power Supplies Instruction

PF1 12v Masthead Amplifier Power Supply
•
PF1, 12v 100mA fully-screened with female Fconnectors.
Antiference masthead power supplies are designed to inject
12 volts DC onto a coaxial TV aerial cable, in one direction to
power a masthead amplifier or similar line powered device
with minimal insertion loss.
Safety
The PF1 PSU has a moulded UK 3-pin plug fitted with a 3
amp fuse. Do not remove the mains plug or wire these units
directly into the mains supply. These units must be fused at 3
amps.
Choose a location to fit the unit within reach of a convenient
mains socket and avoid tangling the mains and coaxial cables
entering and leaving the unit. Do not allow the power supply
to hang on its cables as this may cause damage to the
cables, connectors or PCB.
PF1
Usually the power supply will be fitted behind the main
television, near the incoming aerial downlead. However it may
be possible to fit the power supply in the roof space.
Do not allow soft furnishings such as curtains to cover the
power supply and avoid allowing the unit to lie on carpeting
where the ventilation holes may become covered. When
fitted in a roof space, do not allow insulation material to cover
the power supply. Roof spaces can become extremely hot in
summer!
Mount the power supply securely to a wall or skirting board
using the screw slots provided. Take care when drilling holes
in a wall near to a mains socket not to drill into a ring main
cable buried in the plaster.
The PF1 is designed for 12v masthead amplifiers up to a
maximum 100mA load.
All models are short circuit and overload protected and
designed for continual use. However, it is not good practice to
leave any short circuit in place for a prolonged period.
When a short circuit is present the Green “power on” LED will
be extinguished.
Model
Mains Supply
PF1
230v AC 50Hz
Power
Indicator
Green L.E.D
UK Plug
3-pin 3A Fused
Output
Voltage
12v Positive to Centre
Conductor
Maximum
Current
Insertion Loss
100mA
<1dB
Connector
F-Female
Screening
EN50083-2
Connecting up
Once fixed to the wall connect the coaxial cables using the
correct F male plug. The F-Connector on the PF1 has a
threaded female and normally a standard male F-connector is
fitted to the coaxial cable.
Connect the power supply output, marked “TV” to the coaxial
input of a TV or set-top box. Connect the cable from the
masthead amplifier / aerial to the connection marked “AER”.
This connection carries the 12 volt supply to the masthead
amplifier and passes the RF signal to the output connected to
the TV.
Once the coaxial cables are connected, plug in the power
supply at the mains and switch on. The green LED should
illuminate to indicate power. The masthead amplifier should
now be working.
Masthead
Amplifier
If the LED does not light, disconnect the coaxial cable marked
“AER”. If the LED now lights up then there is a short circuit in
the aerial cable. The most likely place for the short circuit is
at connections in the coaxial plug or at the masthead amplifier
connections. Make sure no “whiskers” of screening braid
have come into contact with the centre conductor of the cable.
If after disconnecting of the aerial cable from the masthead
amplifier, the LED still does not light, check the mains supply,
plug and fuse.
+ 12v
Signal
Antiference Masthead Amplifiers
Antiference can supply a complete range of masthead
amplifiers for all needs including the latest fully screened
models for digital reception. The range includes single and
multi-output models with fixed or variable gain.
PF1
Use PF1 fully screened power supply with fully screened
masthead amplifiers for maximum immunity to interference
and impulse noise. Ask your local distributor for more details.
Antiference reserves the right to change or alter specifications and
features without prior notice. E&OE.
Antiference ©2005. The contents of this instruction leaflet are
copyright. Copying or reproduction of any pictures or text is forbidden
without prior permission.
Antiference Ltd Fradley Distribution Park , Wood End Lane,
Fradley Park, Lichfield, Staffordshire, WS13 8NE
TEL : 01675 465487
www.antiference.co.uk
[email protected]
To TV or
SET-TOP BOX

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