Bell System bellagio Installation & Operation Manual page 18

BG bellagio Digital Entry System
Entrance Panel
The panel should be mounted at an optimum height of 1600mm, measured between the
ground and the centre of the camera window. However building regulations may require
that the panel is mounted with the top row of buttons at 1200mm above ground.
On construction sites the panel and surround must be protected from corrosive substances
such as 'brick acid'. The panel should be cleaned only with a damp cloth containing dilute
detergent.
Bellagio with Fob Installing the Back Box Close up of Washers
The Bellagio panel is constructed to be water tolerant and it is important to install the panel
carefully to avoid compromising the seals.
Neoprene backed washers are provided to seal the main mounting holes. A 20mm
conduit entry allows the back-box to be sealed from water ingress at the cable entry by
use of either a conduit seal or a cable gland – see diagrams below.
Sealing cord is pressed into a channel to provide the panel seal. Take care not to damage
or remove this cord.
Careful consideration should be given to the location of the entrance panel to ensure the
best possible lighting conditions for the camera. In general strong back lighting of the
subject (by the sun and sky) should be avoided, as the contrast between foreground and
background may be too great for the camera. The field of view should contain as little of
the sky as possible, particularly if south facing. If a backlit situation is unavoidable,
additional lighting may be necessary to illuminate the caller and avoid a dark outline image
(silhouette). A light coloured or reflective surface around the panel will redirect backlight to
illuminate the caller.
PD–280 Issue 1 Installation and Operating Manual Page 18 of 40