RS485 access controller We learn about RS485 supports star shape and string shape?

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RS485 access controller

2017-10-26 11:58

Details of the problem:

We have to help the customer to install 72 units of access controller, which support RS485 communication. We learn about RS485 supports star shape and string shape, and which one should we use?

Expert answer:

We advise that you should use string shape, as the following figure:

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