American Megatrends PMB-901LF User Manual page 17

COM3: COM3 Connector, fixed as RS-232
The pin assignments are as follows:
PIN ASSIGNMENT
1 COM3_DCD#
2 COM3_RX
3 COM3_TX
4 COM3_DTR#
5 GND
COM4: COM4 Connector, fixed as RS-232
The pin assignments are as follows:
PIN ASSIGNMENT
1 COM4_DCD#
2 COM4_RX
3 COM4_TX
4 COM4_DTR#
5 GND
PMB-901LF USER
PIN ASSIGNMENT
6 COM3_DSR#
7 COM3_RTS#
8 COM3_CTS#
9 COM3_RI#
10 NC
PIN ASSIGNMENT
6 COM4_DSR#
7 COM4_RTS#
8 COM4_CTS#
9 COM4_RI#
10 NC
'
S MANUAL
Chapter 2 Hardware Configuration
10 5
6 1
COM3/
COM4
Page: 2-7