Axis P3344-VE Installation Manual page 20

Page 20
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:
• 1 transistor output - For connecting external devices such as
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
GND 1
3.3V DC 2
Power
Digital 3
Input
Digital 4
Output
The following connection diagram gives an example of how to connect an auxiliary device to the
AXIS P3343-VE/P3344-VE/P3346-VE/P3367-VE.
AXIS P33-VE Series Network Camera Installation Guide
Notes
Ground
Can be used to power auxiliary equipment.
Note: This pin can only be used as power out.
Connect to GND to activate, or leave floating (or
unconnected) to deactivate.
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.
3.3V
max. 50mA
D
G
S
1
E.g. push button
2
3
4
Pin4 Pin2
Pin3 Pin1
Specifications
Max. load = 50mA
Min. input= - 40V DC
Max. input= + 40V DC
Max. load = 100mA
Max voltage = + 40V DC