J
jjimenez101
Guest
Hello all,
As I read about PC to printer interfacing, I learned that each data pin ( 8 in total) in the printer cable has its own ground for that data signal. Meaning 8 data signals and 8 grounds. Apparently, this is to reduce electrical noise.
I would assume that there should only be one ground (common ground) for this connector. Theoretically, how does this scheme reduce noise?? And why is this method not used in serial communications?
Thanks
As I read about PC to printer interfacing, I learned that each data pin ( 8 in total) in the printer cable has its own ground for that data signal. Meaning 8 data signals and 8 grounds. Apparently, this is to reduce electrical noise.
I would assume that there should only be one ground (common ground) for this connector. Theoretically, how does this scheme reduce noise?? And why is this method not used in serial communications?
Thanks