The number of access control devices that the RS485 network bus can connect to
Details of the problem:
With RS485 communication, how many devices can a bus connect at most and how many doors can be managed?
Expert answer:
Hello, thank you for using our products. Adopt the RS485 communication, in the same system can theoretically the largest number of networking for 255 units, the number of a single 485 converter connected devices associated with 485 converter chip, a 485 converter can connect normal 32 devices. Wiring is better to use shielding wire, and could not connect together and high voltage.
