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41
AXIS P3301/-V/AXIS P3304/-V - The I/O Terminal Connector
The I/O Terminal Connector
Pinout and Interface
The 4-pin I/O terminal connector provides the interface to:
• 1 transistor output
• 1 digital input
• auxiliary power
•GND
The terminal connector is used in applications for motion detection, event triggering, time lapse recording, alarm notification
via email, and image storage to FTP locations.
• Input - for connecting a push button, for example. If the push button is pressed, the state changes and the input becomes
active (shown under Events > Port Status).
• Output - connects an alarm device that can be activated by Output buttons on the Live View page, or by an Event Type.
The output shows as active (Events > Port Status) if the alarm device is activated.
I/O terminal connector
Connect input/output devices to the camera as follows:
1. Attach the cables for the device securely to the supplied green connector block.
2. Once the cables are connected, connect the connector block to the green terminal connector on the camera.
Function Pin Notes
GND 1 Ground
3.3V DC Power 2 Can be used to power auxiliary equipment.
Note: This pin can only
be used as power out.
Digital Input 3 Connect to GND to activate, or leave floating (or unconnected) to deactivate.
Digital Output 4 Uses an open-drain NFET transistor with the source connected to GND. If used with an external relay, a
diode must be connected in parallel with the load, for protection against voltage transients.
I/O terminal
connector
Connector block
12
3
4
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