User manual

3.2 Connecting the Camera to the Network and to the Power
Supply
3.2.1 Notes on Cable Lengths and Power Supply
•The power supply of the camera can only be established using the
10BaseT/NET connector of the camera with the (pre-installed) network cable.
In order to supply power via the network cabling we recommend the
MOBOTIX PoE products (MxPoE, see also section 2.17,
Camera Accessories ):
• for one camera using the Network Power Adapter (MX-NPA-3-RJ)
• for up to four cameras using the Network Power Box (MX-NPR-4)
• for up to 8 or 20 cameras using the Network Power Rack (MX-NPR-8/20)
•The maximum length of the network cable for remotely supplying power is
100m (300ft).
• Make sure that you only use switches or routers that support the 10/100
Mbps Ethernet interface of the camera. Check the LED activity of the corre-
sponding port at the switch or router. When operating many cameras,
please also see section 4.11,
Operating Many Cameras , in the Software Man-
ual
, for additional hints.
• It is highly recommended to use uninterruptible power supplies (UPS),
which also protect the cameras and the network components against electri-
cal surges.
• Advantages of MOBOTIX PoE Products:
• Zero maintenance and durable without fans.
• Higher reliability of the system as a whole, since standard routers/
switches without PoE can be used (lower risk of failure).
• Easy installation on DIN rails (
MX-NPR-4 ) or in 19" racks ( MX-NPR-8/20 ).
• If you are using IEEE 802.3af Power-over-Ethernet network components
for supplying power to MOBOTIX cameras, make sure that these compo-
nents do not have a fan. Since the power consumption of MOBOTIX cameras
is very low compared to other products, the reliability of the entire system is
increased, thus extending the life of these components.
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
www.mobotix.com • [e-mail]
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D12 Camera Manual Part 1
Uninterruptible power
supply (UPS) should be
installed
MOBOTIX PoE products
have zero maintenance
and are durable as the
systems do not require
fans
Use the MOBOTIX MX-
NPR-4 for smaller instal-
lations
Use the 19" MOBOTIX
Netpower rack-mount
units to supply power to 8
or 20 cameras (MX-NPR-8
or 20)
Make sure not to exceed
the maximum cable
lengths
Maximum Cable Lengths (ISDN)
Connection to ISDN outlet: max. 5-10m (16 to 33ft)
Connection to NT (without term. resistors): max. 5-10m (16 to 33ft)
Connection to NT (with termination resistors): 120m (130yd)
Caution
Missing termination resistors and wrong cable lengths are the
most common installation errors!
Always observe the instructions regarding maximum cable lengths
and proper ISDN termination!