Interlogix NS2503-24P/2C User Manual - Manual (Page 137)

NS2503-24P/2C User Manual
137
NS2503-24P/2C 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 previously be planned 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.
The Over Temperature Protection of the PoE Switch offers a safety and stable PoE operating by limiting the output power
according to detected temperature to prevent destructive breakdown due to un-expected overheating.
As following provides PoE (Power over Ethernet) Configuration and PoE output status of PoE Switch, screen in Figure 4-16-1
appears.
Figure 4-16-1: PoE Configuration Interface Screenshot