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        Option of FCARD series access controller network
        2017-12-28 11:57
        Details of the problem:

        Hello, our company needs to install the access control system. Currently, there are popular communication modes with RS485 and TCP/IP. How should we choose, using the RS485 networking method or the TCP/IP networking method?

        Expert answer:

        Hello, the following is the difference between two communication modes

        Advantages of RS485:1. The communication length is far away (generally can reach more than 1200 meters), 2. A RS485 communication bus theory can be connected to 127 devices (reducing the number of lines laid).

        The advantages of TCP/IP: 1. High-speed communication is almost 100 times as fast as RS485.   2. The communication error rate is very small.  3, the outside interference is also very small.

        TCP/IP communication is popular on the market, because TCP/IP is relatively fast and stable, and it is recommended to use TCP/IP communication devices.

        In addition, our FC-8900A series access control products support RS485 and TCP/IP communication methods, and our FCARD3500T management system also supports RS485 and TCP/IP network mixing.

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