English: Data Rate / Line Length chart from RS-422 Annex A (This chart is not in RS-485)
This chart is not an absolute limit, but a conservative guide based on empirical data of 24AWG telephone cable. Cable length may be extended from this chart.
Chart created with Excel from following data:
Cable Length in Meters Data Signaling Rate in kBits/Sec
10000 1200
90000 1200
10000000 14
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.