ACTi B27 Manual download pdf (Page 16)

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.

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:

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 32 33

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ACTi B27 Manual Page 16