General i/o terminal block – Vivotek IP3111/IP3121 User Manual
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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)
NetworKam 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.
NetworKam 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.