Power connections – Axis Communications 221 User Manual
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AXIS 221 - Unit Connectors
Power connections
Power can be supplied to the camera by the following methods:
• the supplied power adapter, PS-K, 9W. The center pin is positive (+).
• PoE (Power over Ethernet) with power classification Class 2, via the network
cable. This will automatically be detected if available via the network.
• the power connector block on the rear panel.
Power Connector Block
The power connector block supports both AC and DC input power.
The DC supply is 7-24V. Connect the negative pole to the GND pin and the positive pole to
the DC+ pin.
The AC supply is 10-24V. Connect the AC poles to the AC pins.
Schematic Diagram - Power Terminal Block and Power Connectors
3
2
o
o
Mode
Power
Supply
3.3V
z
z
z
z
z
z
z
z
z
z
o
o
Internal
~
Switch
o
z
GND
AC
1
AC/DC+
GND/DC-
=
+
-
Axis Power Supply
PS-K 9V max 9W or
according to parts list
Power connector block pin assignment table.
Pin
Function
GND
Ground/DC-
AC/DC+
AC and DC+, power input for mains power to unit
AC
AC power input for mains power to unit
AC
AC
DC+
GND