Milan Technology MIL-SM2401MAF - Manual (Page 168)

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(High), 3 = L (Low).
Power Limit Max (mW) (<15400): Set the power limit value. The maximum
value must less 15400.
Fault Status: the PD error status message. There are three error status and
explain as following.
Null: It means there is no PD connected or the connected PD device status
is normal.
Overload: It means the current is over the PD current classification limited
(475mA @ 48V DC) that the situation happens over 50msec.
Mode Status: the PD current operation mode status.
V sample or I sample: It means " Current sample or Voltage sample”.
When PD is detected and current is supplied, the POE switch will keep
detecting and sampling some current or voltage to ensure whether the PD
still present on this port. It is an IEEE 802.3af operating procedure.
R detect: When the port doesn’t connect with any PD, the POE switch will
poll each port and detects the resistor.
Discovery R (ohms): display resistance value.
Port Current (mA): display current value.
Port Voltage (V): display voltage value.
Port Power (W): display watt value.
Class Current (mA): display power class. When you enable the “Bypass
classification” function, the class value will not show in here.
Determined Class: display power class. When you enable the “Bypass
classification” function, the class value will not show in here.