Hardware manual – ACTi KCM-7911 User Manual
Page 25
Hardware Manual
Consequently, to connect a second DI or DO device, wire the connection to Pins 5 to 8.
High Voltage DO Device Connection
Even though the camera provides 12V power, this may not be enough for some high voltage
DO devices, such as a ceiling light or a motor that opens or closes a gate. In this case, there is
a need to connect an external relay. See wiring scheme below:
Note that when choosing an appropriate relay, please refer to its specifications and make sure
they match the above design. The triggering circuit voltage has to be around 12V DC and the
switch-controlled circuit voltage has to match the external power supply (e.g. 110V AC or 220V
AC).
The illustration below is a graphic example of connecting a relay to a high voltage DO device.
Relay
(DO1 Device)
)
Camera
Illuminator
110V-220V AC
External Power
Source