1. Expanding i/o capacity of PC in automation system. It eliminates use of special plug in cards and any hard-to-find software drivers for those cards.

 

2. Expanding i/o capacity of small scale microprocessor based system without upgrading the microprocessor or adding extra complex address decoding circuit.

 

3. Data Acquisition: Collecting and converting data from readers and sensors in local area to serial format for transmit to remote site for processing.

 

4. Remote control and surveillance: Extending door and window alarm signals to remote central control server.