HP 2520G-POE - Manual (Page 17)

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Introducing the Switch
Back of the Switch
Back of the Switch
Power Connector
The Switch 2520G-24-PoE does not have a power switch; it is powered on
when connected to an active AC power source. The switch automatically
adjusts to any voltage between 100-127 and 200-240 volts and either 50 or
60 Hz. There are no voltage range settings required.
The Switch 2520G-8-PoE also does not have a power switch. It is powered on
when the external AC/DC power adapter is connected to the switch and to a
power source. The external AC/DC power adapter supplies 48 volts DC to the
switch and automatically adjusts to any AC voltage between 100-240 volts and
either 50 or 60 Hz. No voltage range settings are required.
DC power connector
HP ProCurve 2520G-8-PoE Switch (J9298A)
AC power connector
HP ProCurve 2520G-24-PoE Switch (J9299A)