51AXIS 223M - Unit ConnectorsUnit ConnectorsThis section describes the following:• The I/O Terminal connector• Power connections• The RS-232 D-Sub ConnectorI/O Terminal connectorThe 10-pin I/O terminal connector provides the interface to a solid state relay output, twodigital 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 e-mail, 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 orany other external security device, and images can be uploaded whenever thedetector is activated. Maximum 18V DC is allowed on the input.• Output - This can drive a maximum load of 50V DC at 100mA directly or heavierloads 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 protectionagainst any voltage transients.Caution!Connecting AC to the inputs/outputs will damage the unit.10-pin I/OTerminal connector(including RS-485)connectorPowerblockconnectorPower adapterRS-232 connector Connect DC power (7-24V) on pins 1 and 2.Connect AC power (10-24V) on pins 2 and 3.Audio outAudio inReset/ControlButtonNetwork connector