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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 8-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
1
Ground
(common)
GND
2
IN1
Photo-Relay INPUT (+)
Active High voltage 9~40VDC
Dropout voltage 0 VDC.
3
IN2
4
OUT+
Photo-Relay OUTPUT
(Normal Open)
Close circuit current maximum
70mA AC or 100mA DC.
Output resistance 30 Ohm.
Open circuit voltage maximum
240V AC or 350V DC.
5
Ground
(common)
GND
6
DC 12V
DC +12V output
Power distribution: 250mA max.
7
TX+
RS-485 (+) or (A)
Compliant to RS-485.
8
TX-
RS-485 (-) or (B)
AC Power
AC24V Power Input
AC24V Power Input