All kinds with RS485 port device parameter settings , data communication Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines can be . A and A port of the device when the wiring is connected , B and device B connected . Some devices D + A and D, - B . • LED display of communication data • Machine PLC data reading and writing • Monitoring data read and write , and PTZ control • Centralized control of household electrical appliances • Access Control System ; card • A variety of industrial automation ; instrumentation • Parking ; bus fees • Dining Hall ; staff attendance • Highway toll station; ATM machine
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