I was just being a smart ....
I have gone 30 feet with no problems. The MAX chips are good if you need to invert the signal and you can not do it at the source and to raise the signal levels to +-12v as is standard for RS232. Making longer distances possible. Have reached around 80 feet this way. If the location is not noisy and the cable is good (CAT5 does not get it) the distance could be more.
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