Axis Communications P33 Serie Guide D'installation page 12

Page 12
Unit connectors
Network connector - RJ-45 Ethernet connector. Supports Power over Ethernet. Using shielded
cables is recommended.
Audio in - 3.5mm input for a mono microphone, or a line-in mono signal (left channel is used from
a stereo signal).
Audio out - Audio output (line level) that can be connected to a public address (PA) system or an
active speaker with a built-in amplifier. A pair of headphones can also be attached. A stereo
connector must be used for the audio out.
I/O terminal connector - Used in applications for e.g. motion detection,
event triggering, time lapse recording and alarm notifications. 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 Event Type. The output will show as active (shown under Event Configu-
ration > Port Status) if the alarm device is activated.
• 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 Event Configuration > Port Status).
• Auxiliary power and GND
Function Pin
GND 1
3.3V DC 2
Power
Digital 3
Input
Digital 4
Output
AXIS P3343/P3343-V/P3344/P3344-V 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.
Pin4 Pin2
Pin3
Pin1
Specifications
Max. load = 50mA
Min. input= - 40V DC
Max. input= + 40V DC
Max. load = 100mA
Max voltage = + 40V DC