Axis Communications P33 Serie Guide D'installation page 18

Page 18
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
The following connection diagram gives an example of how to connect an auxiliary device to the
Fixed Dome Network Camera.
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
AXIS P33 Network Camera Series Installation Guide
1
2
3
4
Pin4
Pin3
Specifications
Max. load = 50mA
Min. input= - 40V DC
Max. input= + 40V DC
Max. load = 100mA
Max voltage = + 40V DC
E.g. push button
Pin2
Pin1