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TCM-1011 Hardware User’s Manual
10
•
1 Digital Input
- An alarm input for connecting devices that can toggle between an open and
closed circuit, for example: PIRs, door/window contacts, glass break detectors, etc. The device will
detect the change in digital input and transmit the signal to video surveillance servers.
•Auxiliary power and GND
Pin 1
GND
Ground
Description
Pin 2
Auxiliary DC
Power input
(not to power
this camera)
Electrically connected in parallel with the con-
nector for the power supply, this pin provides
an auxiliary connector for mains power to the
unit.
This pin can also be used to power auxiliary
equipment, with a maximum current of 100mA.
Voltage: 12V DC,
Max: 1.2W
Pin 3
Digital Input
Connect to GND to activate, or leave floating
(or unconnected) to deactivate.
Must not be exposed
to voltages greater
than 30V DC.
Pin 4
Transistor
Output
Uses an open-collector NPN transistor with the
emitter connected to the GND pin. If used with
an external relay, a diode must be connected
in parallel with the load for protection against
transient voltages.
Max load = <100mA
Max voltage = 24V DC
(to the transistor)
The I/O terminal pins are numbered right to left,
Connect input/output devices to the camera as follows:
1. Attach the cables for the device securely to the supplied green connector block.
2. Once the cables are connected, push the connector block into the terminal connector (also green)
on the camera.