How far is the RS485 transmission distance?
A maximum distance of one thousand 200 meters, then at 100kbs. At the highest speed, the distance will be shortened.
485 the standard theory of the maximum transmission distance of 1200 meters, the actual field generally use the RVVP-3*0.3-0.5 cable, the general design of 400 meters away, a 20 channel device, baud rate 9600, if 1 can further select baud rate high enough to shorten the distance
RS485 maximum no relay transmission distance is 1200 meters. Practice has proved that the special cable with impedance matching and low attenuation can reach 1800 meters! Over 1200 meters, repeaters can be added (up to 8) so that the transmission distance is close to 10Km.
The higher the data rate, the smaller the distance and, in addition, the quality of the transmission line.
