Cingular IV - Manual (Page 26)

external illuminator must provide its own power supply. The minus side of this power
supply is connected to the ‘return’ signal on the camera.
Battery
IR Illuminator
Observer Camera
-
- +
+ External Illuminator
Return
The external illuminator signal can be used to directly switch on an external infrared
illumination source for nighttime images. Nighttime images illuminated with an infrared
source will require a special lens. Alternately, this signal can be used in conjunction with
a solid-state relay to turn on any other source of illumination. The external trigger and
external lighting control can be used simultaneously for nighttime monitoring of access
points.
Installation
When installing the Observer camera, consider the following:
• Make sure that the area of interest has GSM coverage
• Install the camera far enough above ground so it will not be vandalized
• Different focal length lenses are available to provide an adequate view from any
distance. All lenses are a fixed focus type.
• High contrast scenes are difficult to accurately expose. Aim the camera so it
does not see a dark object against a bright background. Avoid including the sky
if possible.
• The use of a long serial cable will allow the viewing of Observer images during
installation. Go to the Observer’s ‘Home’ page and click “Take A Picture”.
• Alternately the external trigger feature can be used to initiate a conversion during
installation and to place an image on a server. The installer then needs to access
that image, or to speak with someone who can, to verify the proper aiming of the
camera.
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