www.acti.com
Installation Guide
14
To connect input devices (DI), map the pins to one of the pin combinations below:
Device
Pin
Mapping Instructions
Digital Input 2
(DI2)
2
DI2
Connect the wires of the one input device to
DI2
(Pin 2)
and
GND
(Pin 4).
4
GND
Digital Input 1
(DI1)
6
DI1
Connect the wires of another input device to
DI1
(Pin 6)
and
GND
(Pin 8).
8
GND
The table below shows the DI/DO connection specifications:
Device
DI
Connection design
TTL - compatible logic levels
Voltage
To trigger (low)
Logic level 0: 0V ~ 0.4V
Normal (high)
Logic level 1: 3.1V ~ 30V
Current
10mA ~ 100mA
DO
Connection design
Transistor (Open Collector)
Voltage & Current
< 24V DC, < 100mA
Typical Connection
Based on these specifications, if the DI device has a voltage of 0V ~ 30V or the DO device has a
voltage of < 24V (<100mA), then the camera can supply internal power to these devices and
there is no need to connect the DI/DO device to an external power source.
In this case, wire connection to Pins 1 to 4. Use the
GND
and
DI2
pins to connect a DI device and
use the
12V
and
DO2
pins to connect a DO device. See wiring scheme below:
Consequently, to connect a second DI or DO device, wire the connection to Pins 5 to 8.
