Axis Communications V59 Serie Guia De Instalacion página 18

AXIS V59 Series
I/O connectors
Use the I/O connector with external devices in combination with, for example, tampering alarms,
motion detection, event triggering, and alarm notifications. In addition to the 0 V DC reference
point and power (DC output), the I/O connector provides the interface to:
Digital output - For connecting external devices such as relays and LEDs. Connected devices can
be activated by the VAPIX® Application Programming Interface or in the product's webpage.
Digital input - For connecting devices that can toggle between an open and closed circuit, for
example PIR sensors, door/window contacts, and glass break detectors.
4-pin terminal block
Function Pin
1
0 V DC (-)
2
DC output
3–
Configurable
4
(Input or
Output)
Notes
DC ground
Can be used to power auxiliary equipment.
Note: This pin can only be used as power out.
Digital input – Connect to pin 1 to activate, or
leave floating (unconnected) to deactivate.
Digital output – Connected to pin 1 when
activated, floating (unconnected) when
deactivated. If used with an inductive load, e.g. a
relay, a diode must be connected in parallel with
the load, for protection against voltage transients.
18
Specifications
0 V DC
12 V DC
Max load = 50 mA
0 to max 30 V DC
0 to max 30 V DC,
open drain, 100 mA