PLANET ISW-504PS - Manual (Page 73)

User’s Manual
4.9 PoE Configuration
Providing up to 4 PoE, in-line power interface, the Industrial PoE Switch can easily build a power central-controlled IP
phone system, IP Camera system, AP group for the enterprise. For instance, 4 camera / AP can be easily installed around
the corner in the company for surveillance demands or build a wireless roaming environment in the office. Without the
power-socket limitation, the Industrial PoE Switch makes the installation of cameras or WLAN AP more easily and
efficiently.
4.9.1 Power over Ethernet Powered Device
3~5 watts
Voice over IP phones
Enterprise can install POE VoIP Phone, ATA and other Ethernet/non-Ethernet
end-devices to the central where UPS is installed for un-interrupt power system
and power control system.
6~12 watts
Wireless LAN Access Points
Museum, Sightseeing, Airport, Hotel, Campus, Factory, Warehouse can install
the Access Point any where with no hesitation
10~12 watts
IP Surveillance
Enterprise, Museum, Campus, Hospital, Bank, can install IP Camera without
limits of install location – no need electrician to install AC sockets.
3~12 watts
PoE Splitter
PoE Splitter split the PoE 48V DC over the Ethernet cable into 5/9/12V DC
power output. It frees the device deployment from restrictions due to power
outlet locations, which eliminate the costs for additional AC wiring and reduces
the installation time.
4.9.2 Power Management:
In a Power over Ethernet system, operating power is applied from a power source (PSU-power supply unit) over the LAN
infrastructure to powered devices (PDs), which are connected to ports. Under some conditions, the total output power
required by PDs can exceed the maximum available power provided by the PSU. The system may a prior be planed with a
PSU capable of supplying less power than the total potential power consumption of all the PoE ports in the system. In order
to maintain the majority of ports active, power management is implemented.
The PSU input power consumption is monitored by measuring voltage and current .The input power consumption is equal
to the system’s aggregated power consumption .The power management concept allows all ports to be active and
activates additional ports, as long as the aggregated power of the system is lower than the power level at which additional
PDs cannot be connected .When this value is exceeded, ports will be deactivated, according to user-defined priorities. The
power budget is managed according to the following user-definable parameters: maximum available power, ports priority,
maximum allowable power per port.
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