Hardware Manual
31
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.
In this case, use the Black (GND) and the Orange (DI1) cables to connect a DI device and use
the Red (12V) and the Yellow (DO1) cables to connect a DO device. See wiring scheme below:
Consequently, to connect a second DI or DO device, use the Black (GND) and Green (DI2)
cables to connect the second DI device, and the Red (12V) and Blue (DO2) cables for the second
DO device.