... , RS485, with indication lamp on frontal cover Easy to edit the screen, rich functionsLCD: 7 inch 256 colors touch screen, 480*234 ... -adjustableCharacterChinese, English, Japanese, Korean, etc.FontAny font and sizeTouch panelDigital touch modeMemory screen4MB FlashROMData4KB SRAMInterface Communication portSupport RS-232/RS-485 ...