axis international marketing 2130R PTZ Appendix E The I/O Terminal Block Connector, Input, Output

34 The I/O Terminal Block Connector AXIS 2130/2130R User’s Manual

Appendix E - The I/O Terminal Block Connector

A 4-pole connector is provided for external I/O connections to the AXIS 2130/2130R. The connector provides the interface to a single output and a single input. A diagram for the connector, complete with a pinout table is provided below.

Pins	Function
OUT A	The two external device output terminals (A and B) are automatically switched to the
OUT B	connected or disconnected postion - there is no distinction between + and -. The terminals
	use optocouplers and are electrically insulated from the other internal circuitry.	A
	The maximum load should not exceed 100mA and the maximum voltage should be no
	higher than 50V DC. Note: Connecting AC to the output will damage the unit.
IN+	The external device input terminals consist of a + terminal and a - teminal. The - terminal is	B
IN -	grounded on the inside of the main unit. Interupts are generated by connecting cables to	+
	the terminals and shorting (ON) or breaking (OFF) the circuit. Sensors and switches should
	be connected to these terminals with electrically isolated GND and power supplies.
		_

Input

Used for connecting external alarm devices and triggering images for specific alarm-based events, the input is typically connected to a motion detector - or any other external security device - for saving images on each occasion the detector is activated.

Output

The output can drive a maximum load of 50V DC at 100mA directly, and by connecting additional relay circuitry, it can drive even heavier loads. If the output is used with an external relay, a diode must be connected in parallel with the load for protection against any voltage transients.