On Sun, 19 May 2019 08:47:42 -0700 "John Dammeyer" <jo...@autoartisans.com> wrote:
> What's the maximum step rate you are using? Depending on the rate you can > probably use either RS485 drivers/receivers or CAN bus transceivers. The > RS485 is true differential while the CAN bus is pseudo differential relative > to ground but good to 1Mbps. > > In both cases, inside shielded twisted pair, those distances aren't a big > issue. CAN bus drivers require 120 Ohm impedance cable. RS485 can use > cheaper 100 Ohm impedance cable. Properly terminating each end with the > cable impedance (120 Ohm at each end for CAN, 100 Ohm at each end for RS485) > will result in a clean step/dir set of signals. In doubt about requirements on cable impedance. For CAN bus drivers there should 120ohm terminator resistor on both ends. RS-485 is a little bit diffent, you most certainly find if you search on internet. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
