Audio Enhancement WV-SF448 - Manual (Page 13)

13
Screw tightening
• The screws and bolts must be tightened
with an appropriate tightening torque
according to the material and strength of
the installation area.
• Do not use an impact driver. Use of an
impact driver may damage the screws or
cause tightening excessively.
• Tighten screws at a right angle to the sur-
face. After tightening screws, perform checks
to ensure that the tightening is sufficient
enough so that there is no movement or
looseness.
Fall prevention measures
When the external safety wire is connected,
select a connection point resulting in that noth-
ing will hit people after the mount bracket is
damaged. Remove the slack of the safety wire
by adjusting its connection position.
Procure fixing screws separately.
The screws that secure this product are not
supplied. Prepare them according to the mate-
rial and strength of the area where the product
is to be installed.
Radio disturbance
When this product is used near TV/radio antenna,
strong electric field or magnetic field (near a
motor, a transformer or a power line), images may
be distorted and noise sound may be produced.
PoE (Power over Ethernet)
Use a PoE hub/device that is compliant with
IEEE802.3af standard.
Router
When connecting this product to the Internet,
use a broadband router with the port forward-
ing function (NAT, IP masquerade).
Refer to the Operating Instructions on the pro-
vided CD-ROM for further information about
the port forwarding function.
Time & date setting
It is necessary to set the time & date before put-
ting this product into operation. Refer to the
Operating Instructions on the provided CD-ROM
for descriptions of how to perform the settings.
Do not remove or loosen the screws on
the rear of this product.
Ensure that the screws (7 pcs.) in the rear of
the camera are firmly secured. Failure to
observe this may cause a malfunction or the
product to fall, resulting in injury or accidents.
Influence on images and their quality
This product has no wiper unit. Under the fol-
lowing conditions, image quality may deterio-
rate or images may not be viewed properly.
• Affects of dust in the air
Depending on the installation environment,
dome cover may be dirty due to dust in the
air. That may degrade the quality of imag-
es.
• Affects of strong light
When the camera is facing toward a spot
light or other bright lights and light reflecting
objects, ghost images (a phenomenon
where objects that do not actually exist
appear in images) may appear. In particular,
ghost images may be more noticeable when
the camera is facing toward an LED light.