Documents of ePSC
https://www.exinterface.com/d/man/epsc/ePSC_schematic.pdf
https://www.exinterface.com/d/man/epsc/ePSC_Code.pdf
https://www.exinterface.com/d/man/epsc/ePSC_Code_eng.pdf
https://www.exinterface.com/d/man/epsc/ePSC_RS232_schematic.pdf
https://www.exinterface.com/d/man/epsc/ePSC2_UserGuide_Eng.pdf
https://www.exinterface.com/d/man/epsc/ePSC2_UserGuide_Kor.pdf
https://www.exinterface.com/d/man/epsc/ePSC2_UserGuide_Eng.pdf
https://www.exinterface.com/d/man/epsc/ePSC2_UserGuide_Kor.pdf