Vivotek IP3121 Specifications download pdf (Page 10)

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T: 886-2-22404099

F: 886-2-22404097

General I/O terminal block

1 Å DI+ INPUT (Max. 50mA, 12VDC)

2 Å DI- INPUT

3 Å SW_COMMON OUTPUT (short with NC at initial state)

4 Å SW_NOPEN OUTPUT (Max. 1A, 24VDC or 0.5A, 125VAC)

5 Å RS485 B (inverting)

6 Å RS485 A (non-inverting)

Network Camera provides a very flexible general I/O interface to combine with the user’s security

devices such as sensors, alarms, lighting or door locks. The general I/O terminal block has six pins for

device control. These pins can be divided into two categories based on their functions, including RS485

and digital inputs and outputs.

If the device connected to COM has an RS485 interface, wire two control lines to pin 5 and pin 6. After

switching to RS485 on the configuration page, the PT control commands will be directed through pin 5

and pin 6. If the distance from the controlled device is too far to allow accurate function, an external

power source may be used to pull high the RS485 signal.

Network Camera provides one digital input and one relay switch. Pin 1 and pin 2 can be connected to

external sensor and the state of voltage will be monitored according to the programmed scripts in

configuration. The relay switch can be used to turn on or off external devices.

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Vivotek IP3121 Specifications Page 10