Vivotek VS2402 Specifications download pdf (Page 13)

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device is too far to allow accurate function, an external power source may be used to

amplify the RS485 signal.

Digital I/O control

Video Server provides four pairs of digital inputs and two sets of relay switches. Pin 13 to

pin 20 can be connected to external sensors and the state of voltage will be monitored

according to the programmed conditions on the configuration page or the external script

file. Both relay switches can be used to turn on or off external devices. When the system

starts up, COMMON of both relay switches will be short with NC. A simple diagram of

example is shown below.

Power adapter

Plug the power jack of the included power adapter to Video Server. Connecting the power

adapter should be the last operation while physically installing Video Server.

Administrators may feed an external power source through pin 11 and pin 12 of the

general I/O terminal block to replace the power adapter.

The power adapter of Video Server and the external power supply are prohibited to

exist together. Only one source can feed power to Video Server. Improper usage will

result in serious damage.

If DI1 in configuration is set as rising to

drive DO1 to high that denotes COMMON o

DO1 short with NO, then the bulb will light

when DI1 signal changes from 0V to 12V.

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Vivotek VS2402 Specifications Page 13