... ;50Pin extended interface, to the height of 128 points;RS232 and RS485 communication without the jumper, and also supports GSM ... wireless communications and other typical applications;16,32 fonts communication protocol and testing software, customers can add a special character ... button, switchPlayerLED Player 3.2Software for LS-D3(LAN,USB,RS232) led display controller Edit static text, single-line text ...