RS232 is more than able to perform for a short distance and low data speed requirements.
RS232 has a transmission speed of 1Mb/s up to 15M. However,
RS485 has a data transmission speed of up to 10Mb/s for a distance of 15M. At the maximum of 1200M,
RS485 transmits at 100Kb/s.
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RS-485 is a serial communications standard that provides asynchronous communication capabilities, such as hardware flow control, software flow control, and parity check. It has been widely used for decades. Because RS-485 signals are transmitted over twisted-pair cabling, the connections are less sensitive for noise.