19
INSTALLATION
Precautions
To secure recording stability from an overloaded network traffic, hacking attempt or DoS
(Denial of Service) attack, only the direct cable connection between camera and NVR is
allowed.
If the IP camera provides the alarm I/O port or Audio I/O port, you can make
alarm or audio connection. For more details, refer to the user manual of the IP
camera.
The Ethernet connection is effective within 100 meter in distance. Beyond that, you
may encounter a data loss or failure to connect to the camera. If you need to make
cable connection of longer than 100 meters, use a separate PoE extender for cable
extension.
The total power consumption of the IP cameras should not exceed the rated power
capacity of the 48V PoE adaptor (Main unit; 95W external PoE hub: 72W for
NR8H/NR16H). Beyond that, the video may not be played properly or no video will be
displayed at all. If this is the case, use a separate (additional) power source for
supplying power to the cameras.
Even if total power r
equirement meets PoE device’s power capacity, a camera of more
than 15W power requirement per a port cannot be used.
Each camera’s power consumption can be checked on the network map screen, and
total power consumption should consider camera’s maximum possible consumption with
optional accessories (such as IR / heater device).
For stable operation, a dedicated communication line is established for IP cameras in
the same network. This is why network router or hub connection is not allowed.
Camera
HUB or Router
NVR