JVC VN-C11 Security Camera User Manual


 
7
Operating Precautions
VN-C11 designed for indoor use. For outdoor use, prepare a proper housing to cover and protect
the camera.
The product should not be installed or used in the following locations.
Locations subject to rain or water.
Locations with hot air or oil vapors such as in kitchens, etc.
Locations where the allowed ambient temperature (0 °C to 40 °C) is exceeded.
Locations exposed to X-ray radiation or where strong electrical or magnetic waves are gener-
ated.
Locations where corrosive gas is generated.
Locations with vibrations.
Locations with excessive dust.
If VN-C11 and the cables connected to VN-C11 are installed at a location where strong electrical
or magnetic waves are generated, near a radio, TV set, transformer, motor etc., the quality of
image and color may be affected.
If a high-intensity object (such as a lamp) is shot, the image on the screen may have vertical lines
(smear) or blur (blooming) at its periphery. This is a characteristic of the CCD, and is not a defect.
Clean the unit with the power turned off. Use a soft cloth like cotton flannel to wipe out dirt. Do not
use paint thinner or benzine as a cleaning agent as this may cause melting or tarnishing of the
unit surface. If dirt is persistent, use a cloth soaked with water-diluted mild detergent and then
wipe it with a dry cloth.
Because the cable holders of the terminals could come loose, perform cable connection carefully
and securely.
Insufficient dissipation of heat from the unit may cause damage. Use the unit at a well-ventilated
location. In particular, do not block the unit’s cooling-fan ventilation opening.
In a narrowband environment, for example, of dial-up connection, smooth running of MPEG4
images cannot be obtained. This is due to the product design, therefore not a defect.
When this product is installed in an NAT environment, MPEG4 images cannot be viewed. This is
due to the product design, therefore not a defect. (This product uses a network protocol called
RTP for transmitting MPEG4 images. Generally, an NAT router cannot carry out NAT translation
of RTP packets properly.)
Certain hubs and switches equipped with SNMP functions have a broadcast or multicast control
function. If the function is enabled, multicast images created by this product may not be viewed
properly.
To save electricity, turn off the power to the system when not in use.
As local recording images are saved to the volatile memory of the product, the images are
deleted if the power is turned off.
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