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50 feet is quoted as a maximum cable length for RS232 but that limit has been extended in practical applications to far longer distances. The practical limit depends on the data rate, the type of cable and the environment in which it is installed.

RS232 is being replaced by other communication interfaces so although it can be extended further than the strict limit quoted by the standard, long cables will normally use other methods.

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Q: The maximum cable length for a serial cable according to RS-232 standards is 50 feet?
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