Black-box IC476A-F-R2 Manuale Utente Scaricare il pdf (Pagina 13)

12

ASYNC 232↔422/485 CONVERTER

S1-4: Echo Mode

S1-5: Carrier-Control Method

NOTE

Carrier is ON when RTS is asserted positive, and OFF only when RTS is

driven to a negative voltage.

S1-6: Receive Impedance (Termination)

S1-7 and S1-8: 2-wire/4-wire Modes

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