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The diagram shows Sentinel controllers connected in a network. For clarity only three controllers are shown. However up to sixteen Sentinels may be connected in the manner shown.

Notice that the TERM connectors on the first and last Sentinel controllers have shorting jumpers inserted. These shorting jumpers must be in place for correct opperation of the network.

As the system will not be connected to a host PC any one of the Sentinel controllers can be set as the master controller with all the rest being set as slave controllers.

The network address of the controller determines if it will be the master or a slave, for information on how to set the network address see here.

For a wiring diagram showing a typical 2 door application see here.