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AXIS 210/211 - The I/O Terminal Connector
The I/O Terminal Connector

Pinout and Interface

The 4-pin I/O terminal connector provides the interface to:
• 1 transistor output
• 1 digital input
• auxiliary power and GND
The terminal connector is used in applications for e.g. motion detection, event triggering,
time lapse recording, alarm notification via e-mail, image storage to FTP locations, etc.
•Input - for connecting e.g. a push button. If the push button is pressed, the state
changes and the input becomes active (shown under Event Configuration > Port
Status).
•Output - connects e.g. an alarm device that can be activated by Output buttons
on the Live View page, or by an Event Type. The output will show as active
(Event Configuration > Port Status) if the alarm device is activated.
Connect input/output devices to the terminal connector as follows:
1. Loosen the corresponding screw on top of the pin (see above for the correct pin to
Pin Function Description
4Transistor Output With a maximum load of 100mA and a maximum voltage of 24V DC, this output
has an open-collector NPN transistor with the emitter connected to pin 1 (GND).
If used with an external relay, a diode must be connected in parallel with the load,
for protection against voltage transients.
3Digital Input Connect to GND to activate, or leave floating (or unconnected) to deactivate.
2Auxiliary DC Power Input 7-20 VDC/max 5W. Electrically connected in parallel with the PS-K power
connector, this pin provides an auxiliary connector for mains power to the unit. If
the unit is powered via this pin, a fuse should be used (rating: 1A Slow).
This pin can also be used to power auxiliary equipment, max 100mA, but note that
this is not possible when the AXIS 211 is powered by PoE.
1GND
Pin 4
Pin 3
Pin 2
Pin 1
Pin 4
Pin 3
Pin 2
Pin 1