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The Power over LAN Active Splitter means that
current Network Video Products can receive power over
the network by splitting Ethernet and Power coming over
the network cable from the Power over LAN Midspan.
Another benefi t of Axis Power over LAN solution is
the UPS function. Many companies have their network
switches connected to a UPS (Uninterrupted Power
Supply) device. Since the Power over Ethernet hubs
are connected to the network switches, the cameras
and video servers continue to function in the case of a
power shortage. Power over LAN is also referred to as
Power over Ethernet.
Transmission type Typical download
speed
Time to transmit
a 25 kbyte image
(in seconds)
Max frame rate if
every image is 25
kbyte (in fps)
Transmission
to a house
or a building
PSTN 45 kbit/s 6 10 frames/minute
ISDN 120 kbit/s 2 0.5
IDSL 150 kbit/s 2 0.6
ADSL - Low end 768 kbit/s 0.3 3
ADSL - High end 5 Mbit/s 0.05 20
HDSL 1.5 Mbit/s 0.2 6
VDSL 20 Mbit/s 0.01 80
Cable modem 750 kbit/s 0.3 3
T1 1.5 Mbit/s 0.2 6
Transmission
within a house or
a building
10 BaseT 5 Mbit/s 0.05 20
100 BaseT 50 Mbit/s 0.005 200
1000 BaseT 500 Mbit/s 0.0005 2000
Wireless radio
transmission
GSM 9 kbit/s 30 2 frames/minute
802.11 1 Mbit/s 0.2 4
Bluetooth 500 kbit/s 0.5 2
This table shows the normal capacity of different transmission types. Note that the data is approximate and can therefore only serve as a rough guide.
NETWORK BASICS
Power over LAN Midspan.
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