Axis Communications P33 Serie Installationsanleitung Seite 19

AXIS P33/P33-V Network Camera Series Installation Guide
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
Fixed Dome Network Camera.
3.3V
max. 50mA
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.
D
G
S
1
E.g. push button
2
3
4
Page 19
Pin4 Pin2
Pin3 Pin1
Specifications
Max. load = 50mA
Min. input= - 40V DC
Max. input= + 40V DC
Max. load = 100mA
Max voltage = + 40V DC