MSI KM4M User Guide - Page 22

MS-6734 M-ATX Mainboard Serial Port Connector: COM 1 The mainboard offers one 9-pin male DIN connector as serial port COM 1. The port is a 16550A high speed communication port that sends/receives 16 bytes FIFOs. You can attach a serial mouse or other serial devices directly to the connector. 1 2 3 4 5 PIN 1 2 3 4 6 7 8 9 5 9-Pin Male DIN Connector 6 7 8 9 Pin Definition SIGNAL DESCRIPTION DCD SIN SOUT DTR GND DSR RTS CTS RI Data Carry Detect Serial In or Receive Data Serial Out or Transmit Data Data Terminal Ready) Ground Data Set Ready Request To Send Clear To Send Ring Indicate VGA Connector The mainboard provides a DB 15-pin female connector to connect a VGA monitor. 5 1 15 11 VGA Connector (DB 15-pin) Pin Signal Description Pin 1 RED 2 3 BLUE 4 5 GND 6 7 GND 8 9 +5V 10 11 N/C 12 13 Horizontal Sync 14 15 SCL Signal Description GREEN N/C GND GND GND SDA Vertical Sync IEEE1394 Port (Optional) The back panel provides one standard IEEE 1394 port. The standard IEEE1394 port connects to IEEE1394 devices without external power. The IEEE1394 high-speed serial bus complements USB by providing enhanced PC connectivity for a wide range of devices, including consumer electronics audio/video (A/V) appliances, storage peripherals, other PCs, and portable devices. 2-12 IEEE1394 Port