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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
3
IN2
Photo-Relay INPUT (+)
Active High voltage 9~40VDC
Dropout voltage 0 VDC.
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)
8
TX-
RS-485 (-) or (B)
Compliant to RS-485.