Instruction Manual
153
•
Owner:
Displays the current owner of the RMON history entry.
Deleting an RMON History Entry
•
On the
RMON History
page, click on the
Delete
button to delete the current
RMON history entry.
Applying the RMON History Index
1.
On the
RMON History Table
page, select a RMON history index from the drop-
down list.
•
RMON History: Allows you to select a RMON history index from the drop-
down list.
2.
Click on the
Apply
button.
Power over Ethernet
The switch can be used to easily build a powered centrally-controlled IP phone
system, IP camera system and AP group for the enterprise. For instance, cameras
/ APs can be easily installed around the corner in the company for surveillance
demands or build a wireless roaming environment in the office. Without a power-
socket limitation, the switch makes the installation of cameras or WLAN APs
easier and more efficient.
System Configuration
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 with a
PSU is capable of supplying less power than the total potential power consumption of
all the PoE ports in the system. In order to maintain the function of the majority of the
ports, 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 and maximum allowable power per port.
