DDF4820HDV-DN-IM/-SM
www.dallmeier.com
21
6 Installation and Commissioning
The installation and commissioning of the units may only be carried out by qualified per
-
sonnel.
WARNING
Falling devices/objects or collapsing ceiling
Danger of death or serious injury to the head
Observe the manufacturer’s instructions about the maximum adequate
carrying capacity of the supporting structure and the suspended ceiling
or ceiling tiles.
Use screws suitable for the ceiling/wall material.
Use the correct type of anchor for your ceiling/wall type:
• Plastic screw anchors for solid wall material (concrete/brick)
• Toggle bolt style anchors for drywall / hollow wall type (plaster)
Electric shock hazard
Danger of death or serious injury
Always disconnect the PoE switch or the separate power supply unit
from the mains socket (pull out the power plug) before connecting or
disconnecting the devices.
Notice
Damage to the units resulting from improper power supply
The devices can be powered via PoE (Power over Ethernet, Class 0) or
supplied with a separate 12 V DC power supply unit.
However, always beware not to use both power sources simultaneously.
Damage to the lens units
Do not attempt to manually adjust the focal length (zoom) and the focus on
the lens units.
The devices are equipped with a motor-driven varifocal lens.
The focal length (zoom) and the focus are adjusted over the network in the
“WebConfig” user interface (see chapter “
In order to comply with UL’s requirements, always use a UL-certified, Limited Power
Source (LPS) Class 2 power supply unit when operating the devices with a separate
power supply unit.
