The 7I47 is a 12 channel RS-422 interface for Mesa's Anything I/O series of FPGA interface cards. The 7I47 is designed for motion control applications, both for buffering FPGA outputs and for conditioning RS-422 inputs. A common usage of the 7I47 would be connecting up to 6 step+direction step drives to the 7I47's RS-422 outputs and up to 6 encoders (4 with index) to the 7I47's RS-422 inputs. The RS-422 outputs can be used as single ended outputs for driving ground or +5V referenced loads. When used as single ended outputs, the 7I47 outputs swing from 0 to 5V and will sink or source 20mA. 12 LEDS monitor encoder input status. The 7I47 can also supply 5V power to encoders. The controller connection is a 50 pin header that matches the pinout of Mesa'a Anything I/O cards. All buffered I/O is terminated with 3.5 mm pluggable screw terminals (supplied).