Kontron Mungo540, User Manual

Page: 34 / 92

26 Mungo540 User’s Manual
J15: COM1, COM2, COM3, COM4: Serial Ports
COM1, COM2, COM3, COM4 both 10-pin header connectors, are the
onboard serial ports of the Mungo540. The following table shows the pin
assignments of this connector.
Pin # Signal Name
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal
ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
.
COM1
COM2
9 RI, Ring indicator
10 NC
COM3, COM4: Serial Ports
COM3 and COM4 both 10-pin header connectors, are the onboard serial
ports of the Mungo540. The following table shows the pin assignments of this
connector.
Pin # Signal
Name
Pin # Signal
Name
1 -HDCD3 6 -HDSR4
2 HSIN3 7 -HRTS3
3 HSOUT3 8 -HCTS3
4 -HDTR3 9 HRI3
COM3
5 Ground 10 NC
Pin # Signal
Name
Pin # Signal
Name
1 -HDCD4 6 -HDSR4
2 HSIN4 7 -HRTS4
3 HSOUT4 8 -HCTS4
4 -HDTR4 9 HRI4
.
COM4
5 Ground 10 NC