Is there a limit to how many access control devices are connected to RS485?
2017-02-19 15:22
Details of the problem:

If you choose RS485 networking to manage access control devices, how many access control devices can be managed by the same system at most?

Expert answer:

Hello, thank you for using our company’s products, the maximum number of connected by RS485 network management is 255, and the farthest wiring distance is 1200 meters, note that when wiring, the RS485 data line is best to use shielded wire, and it cannot be wired with strong electricity.

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