5 Mega-pixel Vandalproof IR PoE IP Camera
ICA-E5550V
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2) DI/DO Connection Specification
Device
Connection Design
TTL - compatible logic levels
To trigger
Logic level 0: 0V ~ 0.4V
Voltage
Normal
Logic level 1: 3.1V ~ 30V
DI
Current
10mA ~ 100mA
Connection Design
Transistor (Open Collector)
DO
Voltage & Current
< 24V DC, < 50mA
3) 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 connection to Pins 1 to 4. 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:
4) 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).
