ACTi Z810 - Page 23

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Hardware Manual
23
The table below shows the DI/DO connection specifications:
Device
DI
(Alarm IN)
Connection design
TTL - compatible logic levels
Voltage
To trigger (low)
Logic level 0: 0V ~ 0.4V
To trigger (high)
Logic level 1: 3.1V ~ 12V
DO
(Alarm OUT)
Connection design
Transistor (Open Collector)
Voltage & Current
< 12V DC, < 30mA
The camera does not provide power for DO devices, make sure to use external power source to
power them up. Note the maximum voltage and current allowed on the table above.
After mapping the wires to the terminal block, connect the terminal block to the DIO connector of
the camera and make sure to protect the cable connection against water or other environmental
factors, such as by using a waterproof tape.
NOTE: For more information on DI/DO connections, please refer to the Knowledge Base article
All About Digital Input and Digital Output downloadable from the link below
(http://Download.acti.com?id=516).