GE IFS D1300 RS-485 (2-Wire) Tri-State Point-to-Point Transceivers

in industrial and instrumentation patience systems often have to transmit data over very long distances in extremely harsh environments the rs-485 bus standard is one of the most widely used physical air bus standards for these applications but there are four common problems you'll need to overcome in your network design so let's look at the first problem how long can you make your cable and what data rate can you use rx 485 can communicate over long distances by using the frame shell communication lines this requires a dedicated pair of signal lines a and B to exchange the information where the voltage on one line equals the inverse of the voltage on the other line IRS foreign v receiver connected onto the bus will output a 1 when line a is 200 millivolts greater than B similarly the receiver will output a zero when line B is 200 millivolts greater than a by using differential communic