![background image](http://html1.mh-extra.com/html/acti/e89/e89_hardware-manual_2842454032.webp)
www.acti.com
Hardware Manual
32
To connect input devices (DI), map the pins to one of the pin combinations below:
Device
Pin
Mapping Instructions
Digital Input 1
(DI1)
1
GND
Connect the wires of the first input device to
GND
(Pin 1) and
DI1
(Pin 3).
3
DI1
Digital Input 2
(DI2)
5
GND
Connect the wires of the second input device to
GND
(Pin 5) and
DI2
(Pin 7).
7
DI2
To connect output devices (DO), map the pins to one of the pin combinations below:
Device
Pin
Mapping Instructions
Digital Output 1
(DO1)
2
12V
Connect the wires of the first output device to
12V
(Pin 2) and
DO1
(Pin 4).
4
DO1
Digital Output 2
(DO2)
6
12V
Connect the wires of the second output device to
12V
(Pin 6) and
DO2
(Pin 8).
8
DO2
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, < 50mA
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 (< 50mA), 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.