Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Termination resistor value depends of characteristic impedance of cable that you drive. You probaby use some twisted pair cable, wich characteristic impedance is something about 100 Ohm( you must chek on the website of cable manifacturer) . Termination resistor must be with the same value like cable impedance if loading is minimal.