Installation and Connections
WebRelay Users Manual
Many of the illustrations in this manual show the WebRelay contacts wired in series with a power source,
which allows the power for the device to be switched on and off remotely. In many cases, however, it is
useful to control other functions and not just power. One way to do this is to connect relay contacts in
parallel with push-button switches within a device.
For example, suppose you have a gate controller system that has a push-button switch that opens a
gate when pressed. The button that controls the gate is located on one side of a building, but you want
to be able to open the gate elsewhere. If the building is wired for networking, it is a simple task to
accomplish this goal by connecting the WebRelay contacts in parallel with the pushbutton. An illustration
of this is shown below. Users can now operate the gate with the existing push-button, or users can
operate the gate at a remote location using a web browser or smart phone.
Another option (not shown here), is to connect another push-button switch to the input of a second
WebRelay device in a room across the building. The second device can be configured to send control
messages to the first device each time the remote push-button is pressed. As a result, there is a second
push-button that can operate the gate.
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Xytronix Research & Design, Inc.