Audio-developments AD144 Instrukcja Użytkownika Pobierz pdf (Strona 42)

To operate the majority of external devices, it will be necessary to ‘close’ a circuit, but,

for some, it will be necessary to ‘open’ the control circuit. The relays are situated at

the top of the module’s printed circuit board, and associated with each one is a DIL

switch that enables it to close a circuit (normally open - N/O) or open a circuit

(normally closed - N/C). The module leaves the factory with switches in the N/O

position. When any of the pins 3-7 relays must have the same settings, ie N/O or

N/C.

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Audio-developments AD144 Instrukcja Użytkownika Strona 42