... port COM (RS232, RS422, RS485) and a USB download mouth FCC SA-7B Main technical parameters ModelSA-7BDisplay space ... RS422,RS485) and COM 2(RS232,RS422,RS485)USB download port USB DevicehaveU disc port USB HostNoethernet portNoSDNointernal memory128M ... 'aImgSrc': aBigImageSrc } ); } )(); SA - 7B;The man-machine interface ;Touch screen controller;The man-machine interface ;man-machine interface ...