Axis P1311 Installation Manual page 15

AXIS P1311 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 Event Type. The output will show
as active (shown under Events > 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, glass break detec-
tors, etc. When a signal is received the state changes and the input becomes active
(shown under Events > Port Status).
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 P1311.
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
(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
Pin 4
1
E.g. push button
2
3
4
Page 15
Pin 2
Pin 1
Pin 3
Specifications
Max load = 50mA
Min. input = -40V DC
Max. input= +40V DC
Max. load =100 mA
Max. voltage = + 40V DC