Axis Communications axis fixed dome network camera user manual Unit Connectors, I/O Terminal Block

AXIS 225FD - Unit Connectors

Unit Connectors

This section describes the following:The I/O terminal block

•LED indicators

•Power connection

I/O Terminal Block

The 7-pin I/O terminal connector provides the interface to a solid state relay output, two digital inputs, RS-485/422 and GND.

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 specific 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. Con- nect to GND to activate.

Power connector block
C		o	r	AC		D
A	+			G	N
1
7
I/O terminal
block

Control button

Network

connector

•Output - This can drive a maximum load of 50VDC or 35VAC at 100mA directly or heavier loads by connect- ing additional relay circuitry. If the output is used with an external relay, a diode must be connected in parallel with the load for protection against any volt- age transients.

I/O terminal connector block pinout:

LED indicators

1 2 3 4

Conduit hole and plug

Pin	Function	Description
1	Output A	On the external device output terminals (A and B), there is no distinction between positive and nega-
		tive (+ and -). The terminals use a photocoupler and are electrically isolated from the other internal
2	Output B
		circuitry.
		The maximum load should not exceed 100mA and the maximum voltage should be not more than
		50VDC or 35VAC.
3	Digital Input 1	Connect to GND to activate, or leave floating (or unconnected) to deactivate.
4	Digital Input 2
5	RS-485/422-A	A half-duplex RS-485 interface for controlling auxiliary equipment.
	(non-inverting)
6	RS-485/422-B
	(inverting)
7	GND	Ground.

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