MERIDIAN AUDIO G12 Remote Sensor data

G12 Remote Infra-Red Sensor

Matte black tubular sensor
Designed for flush-mounting

in a vertical surface or may
be surface-mounted

Cable plugs directly into the
sensor input on a G-Series
component

Compact and unobtrusive

Meridian’s G Series line of high performance

digital & analogue consumer audio components
feature a stylish cabinet design in traditional
black or a sleek silver finish.

Designed to be either free-standing or rack­mounted, G Series components build on their
predecessors, the multi-award-winning 500 and
our flagship 800 Series, and include entirely new
circuitry developed specifically for the G Series.

Multi-layer boards reduce system noise and
improve performance. In products which include
video capabilities, broadcast-quality, wide­bandwidth video components are employed for
maximum image integrity.

G Series units are easy to use. Where appropri­ate, a knob is included to control volume. The
positive-action front-panel keys are software­defined: their legends are presented in the
vacuum fluorescent display and change
intelligently according to context.

Full installation configuration of many G Series
components is achieved by running a special
setup program on a Windows computer,
connected to the G Series unit via a serial link,
or direct from the front panel.

G Series products also include serial ports for
remote operation and configuration, along with
infra-red sensor input and trigger capabilities,
plus Meridian communications ports. A compre­hensive back-lit learning/programmable remote
is included with products other than amplifiers.

The G12 remote infra-red sensor is designed to
be used in conjunction with Meridian G Series
systems, in circumstances where the actual com­ponents are not visible or where other circum­stances prevent them receiving a signal from the
remote control using their built-in sensors.

The G12 consists of a precision-machined
cylindrical body and optional nut, with a non­removable, rotatable infra-red-transparent cover
on the front of the barrel which determines
the orientation of actual sensor element on the
circuit board within the barrel.

A two-core screened cable provides power to
the sensor as well as returning the signal to the
connected device. The cable is terminated with
a 3.5mm stereo jack plug which is plugged into
the IR IN socket of a G Series product.

Typically, the remote sensor will either be
mounted flush through a vertical surface or
surface-mounted.

For mounting in a vertical surface, the G12 is
treated in a similar fashion to a ‘door-scope’
security device. A 0.63 (41/64th) inch (16 mm)
hole is drilled in the surface, the sensor barrel is
inserted from the room side, and the retain­ing nut, if required, is screwed on to the barrel
from the rear to hold the unit in place. Finally,
the front cover is rotated so that the lines are
horizontal for maximum sensitivity.

For surface mounting, the body of the device
(which is flattened on opposing sides for this

G12 Remote Infra-Red Sensor

purpose) is fixed with double-sided tape or other
adhesive to the top or bottom of a suitable
horizontal surface such as a shelf, or against a
vertical surface. In this case, the retaining nut
is discarded. Before attaching the cover, one of
the edges of the front disc (or both if necessary)
should be snapped off to enable the entire as­sembly to sit flat on the surface.

The front disc rotates so that it can be posi­tioned correctly (with the lines or flats horizon­tal). Note that this also rotates the circuit board
and cable assembly.

A cable length of 6ft (1.83 m) is provided,
terminated with a 3.5mm three-pole (‘stereo’)
mini-jack. This is inserted into the IR IN port on
the component. Alternatively, the cable can be
shortened or extended as necessary. The wiring
for the plug is as follows:

Tip: +12v DC (red)
Ring: Sensor out (blue)
Sleeve: Ground (screen)

The G12 can be used with other Meridian prod­uct series in conjunction with a suitable adaptor.

Wiring diagram for an adaptor to enable the
G12 to be used with other Meridian series, such
as the 800 Series and legacy products. DIN plug
viewed from the front. Green represents the
cable screen braiding.

Above: Architectural drawing of the G12 sub-assemblies. All dimensions are in millimetres. Below:
front view of the G12 assembly. The actual sensor is covered and protected by an infra-red-transpar­ent rotatable plastic cover which also holds the internal circuit board in place. If the sensor is to be
surface-mounted, one or both edges of the cover can be snapped off along the line to allow the
sensor assembly to lie flush against the surface. Opposite sides of the body are flattened for this
purpose. For maximum sensitivity, the final alignment of the cover should be as shown below, with
the grooves (and thus the internal circuit board) horizontal. Do not attempt to remove the cover.

Information contained in this data sheet is
correct as far as possible, but Meridian Audio
accepts no liability for errors or omissions.
Trademarks are the property of their respective
owners. Meridian Audio reserves the right to
amend product specifications at any time.

Further technical details, images, product
reviews and company history are available from
Meridian Audio or from our web site, www.
meridian-audio.com

©Text & images 2004 Meridian Audio Ltd.

Meridian Audio Limited

Latham Road, Beaufort Park
Huntingdon, Cambridgeshire PE29 6YE
United Kingdom
Tel [phone]
Fax [phone]

Meridian America Inc

8055 Troon Circle, Suite C
Austell, Atlanta GA 30168-7849
USA
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Fax [phone]

Email: [e-mail]
Web: www.meridian-audio.com

G12DS v1.7 • 20060720 RE • P80303