The computer Z RS-23 serial interface current loop circuit diagram

  
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This circuitry is used for the joggle between computer Z RS-23 serial connecting current ring and current ring circuitry, it can transform the voltage semaphore of transmission into the current semaphore with 20 mA, the biggest speed can reach 1200 bits. Light-coupled device IC3, T1 make up receiving port connecting interface circuit, T2, T3 constitute tran..
The computer Z RS-23 serial interface current loop circuit diagram - schematic




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