Airlink101 AICN1777W Gpio Terminal Application, Connector Pin Assignment, Interface Schematic

A.2 GPIO Terminal Application

Typically used in association with programming scripts for developing applications for motion detection, event triggering, alarm notification via e-mail, and a variety of external control functions. The 6-pin I/O Terminal Block is located on the rear panel and provides the interface to: a photo-coupled switch output, a photo-coupled input, and RS-485 interface. The RS-485 is typically used for pan/tilt control.

￿Connector Pin Assignment

PIN	FUNCTION	SPECIFICATION
IN+	Photo-Relay INPUT (+)	Active High voltage 9~40VDC
		Dropout voltage 0 VDC.
IN-	Photo-Relay INPUT (-)
OUT+	Photo-Relay OUTPUT (Normal Open)	Close circuit current maximum 70mA AC or 100mA
		DC.
OUT-	Photo-Relay OUTPUT (Common)
		Output resistance 30 Ohm.
		Open circuit voltage maximum 240V AC or 350V
		DC.
TX+	RS-485 (+) or (A)	Compliant to RS-485.
TX-	RS-485 (-) or (B)

￿Interface Schematic

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