Honeywell 301C Manuel De L'utilisateur page 55

Scroll through the main Config menu screens using the left (previous)
or right (next) keypad arrows.
The third main screen in the Config menu allows the relay
configuration to be set, the AP broadcast mode and to select from four
separate manufacturers for the given controller.
When Relay Configuration is selected, two further options to configure
the relays are available: The first screen, Failsafe, appears allowing
the failsafe to be activated for all relays using the Enter keypad button.
This function inverts relay operation to be normally energized. If power
is cut, the relay will activate the connected device. (ex. a light.)
Scrolling to the right displays the "Silence" screen that enables or
disables the silence option for each relay, using the Enter keypad
button.
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