Installation and Connections WebRelay Users Manual
2.5.6 WebRelay Used for Reboot (wired to reset)
The illustration below shows how WebRelay can be wired to the reset circuit of a computer motherboard.
In this scenario, the computer is never powered down, only reset when necessary by temporarily closing
the relay contacts. This approach is more gentle on the computer it controls than the approach of
switching the power. The Common and Normally Open contacts of WebRelay are wired to the reset
circuit of the computer. If the computer has an existing push-button switch for reset, the relay contacts
may be wired in parallel with the push-button switch. This allows both local and remote reset.
2.5.7 WebRelay Used for Reboot (wired in parallel with power switch)
Many computers have momentary power buttons that are wired to the motherboard similar to the way
the reset button is wired.
The previous example, which describes connecting WebRelay to the reset circuit, can be used to
illustrate connection. Instead of connecting the WebRelay contacts to the motherboard reset, connect
the contacts to the power control pins on the motherboard. This allows the computer to be powered
down without cutting off the AC power.
Page 26 Xytronix Research & Design, Inc.
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