Specifications

Revision 2.4 WebRelay-Quad™ Users Manual
1.3 Connectors & Indicators
WebRelay-Quad™ has a removable terminal connector and an Ethernet connector. The terminal
connector is used to provide power to the internal web server, and is used to connect external
electrical loads to the relay contacts.
There are seven LED indicators on WebRelay-Quad™. The Power LED (green) indicates that the
unit is powered. Four LEDs (green) labeled Relay 1-4 which indicate that the corresponding relay
coil is energized. When the relay coils are energized, the NO (Normally Open) contacts are closed
and the NC (Normally Closed) contacts are open. The load device that is connected to the relay
contacts may be on or off when the coil is energized depending on how it is wired. The LINK
(green) LED indicates that WebRelay-Quad™ is properly connected to an Ethernet network. The
ACK LED (amber) flashes when there is network activity. Note that the LINK and ACT LEDs are
located on the Ethernet connector.
Xytronix Research & Design, Inc. page 8
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