Axis Communications P3346-V manual Relays and LEDs. Connected devices can be activated by

AXIS P33/P33-V Network Camera Series Installation Guide				Page 19
I/O terminal connector - Used in applications for e.g. motion detection,
event triggering, time lapse recording and alarm notifications. In addition to
an auxiliary power and a GND pin, it provides the interface to:
		Pin2
• 1 transistor output - For connecting external devices such as	Pin4
		Pin3		Pin1

relays and LEDs. Connected devices can be activated by the

VAPIX® Application Programming Interface (API), by the output buttons on the Live View page or by an Action Rule. The output will show as active (shown under System Options > Ports & Devices) if the alarm device isactivated.

•1 digital input - An alarm input for connecting devices that can toggle between an open and closed circuit, for example: PIRs, door/window contacts, and glass break detectors. When a signal is received the state changes and the input becomes active (shown under System Options > Ports & Devices).

Function	Pin	Notes	Specifications
GND	1	Ground
3.3V DC	2	Can be used to power auxiliary equipment.	Max. load = 50mA
Power		Note: This pin can only be used as power out.
Digital	3	Connect to GND to activate, or leave floating (or	Min. input= - 40V DC
Input		unconnected) to deactivate.	Max. input= + 40V DC
Digital	4	Uses an open-drain NFET transistor with the source	Max. load = 100mA
Output		connected to GND. If used with an external relay, a	Max voltage = + 40V DC
		diode must be connected in parallel with the load,
		for protection against voltage transients.

The following connection diagram gives an example of how to connect an auxiliary device to the Fixed Dome Network Camera.

ENGLISH

	1
3.3V
max. 50mA	2

3

D4

G

E.g. push button

S