Panasonic KX-HCM280, Service Manual

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Pin Function
1 GND
2 DC Power Output Terminal
-
10.5-13.5V DC
-
Maximum of 100 mA load drive is possible.
3 External Sensor Input
-
External Sensor Input receives the signal produced by the alarm sensors, e.g., door sensor, infrared ray sensor. Those
signals can activate Image Transfer in the Alarm mode feature on Operating Instructions.
-
Please use it by opening or GND short-circuit.
4 External Device Control Output
-
External Device Control Output sends the electric current to activate the external devices, e.g., light, buzzer.
-
External Output Control window can set the External Device Control Output.
-
It is an open collector circuit, and the maximum drawing-in current is 100 mA. Prevent the maximum voltage from
exceeding DC Power Output voltage of pin 2.
Circuit Diagram Example
IP2: Polyswitch
IP2 protects the camera against the short circuit between 1pin (GND) and 2pin (DC power out) of
CN2.
Caution:
- The External I/O is not capable of connecting directly to devices
that require amounts of current. In some cases, a custom interface
circuit (Customer Provided) may have to be used. Serious damage
to the network camera may result if a device is connected to the
External I/O that exceeds its electrical capability.
- The Low voltage/current circuits and High voltage/current circuits
are in the network camera circuit. The qualified electrician should
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