The I/O Units Connectors - Axis 221 User Manual

The I/O Units Connectors

I/O Terminal Connector
Pinout and Interface
The 10-pin I/O terminal connector provides the interface to a solid state relay output, two
digital photo-coupled inputs, RS-485, GND and auxiliary power.
The terminal connector is used in applications for e.g. motion detection, event triggering,
time lapse recording, alarm notification via email, image storage to FTP locations, etc.
• Input - used for connecting external alarm devices and triggering images for spe-
cific alarm-based events. The input is typically connected to a motion detector or
any other external security device, and images can be uploaded whenever the
detector is activated. Maximum 18V DC is allowed on the input.
• Output - can drive a maximum load of 50V DC at 100mA directly or heavier
loads by connecting additional relay circuitry. If the output is used with an exter-
nal relay, a diode must be connected in parallel with the load for protection
against any voltage transients.
Caution!
Connecting AC to the inputs/outputs will damage the unit.
10-pin I/O
terminal
connector
Power
connector
block
RS-485
connector
1 2 3 4 5 6 7 8 9 10
Power adaptor
connector
AXIS 221 - The I/O Units Connectors
RS-232
connector (D-sub)
43