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Hardware Manual

The table below shows the DI/DO connection specifications:

Device

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

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, wire the connection as below. Use the DIO GND and DI pins to connect a DI device

and use the DIO PW and DO pins to connect a DO device. See wiring scheme below:

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ACTi D61A Handbuch Seite 15