User Manual

PC/104 Module PFM-CVS Rev. B
Chapter 2 Quick Installation Guide 2-28
2.28 COM4 RS-232 Connector (COM4)
Pin Pin Name Signal Type Signal Leve l
1 DCD4 IN
2 DSR4 IN
3 RXD4 IN
4 RTS4 OUT ±9V
5 TXD4 OUT ±9V
6 CTS4 IN
7 DTR4 OUT ±9V
8 RI4 IN
9 GND GND
2.29 USB2.0 Connector (USB1)
Pin Pin Name Signal Type Signal Level
1 USB_VCC0 PWR +5V
2 USBP0- OUT
3 USBP0+ OUT