Vehicle Power Board Expansion Connector (Cn39); Serial Port 1/ Port 2 (Rs232/422/485) (Com1) - Asus AAEON VPC-3350S User Manual

2.4.7 Ve hicle Power Board E xpansion Connector ( CN39)
P in
1
2
3
4
2.4.8 Se ri al Port 1 / Port 2 (RS232/422/485) ( COM1)
P in Sig nal
1 DCD (485-/422TX-)
2 RXD (485+/422TX+)
3 TXD (422RX+)
4 DTR (422RX-)
5 GND
N o te: When viewing board with component side up, COM1/Port 1 will be the upper
port and COM2/ Port 2 the lower port (the board sits component side down when the
system is fully assembled).
Chapter 2 – Hardware Information
Sig nal
Ground
Ground
Ground
Ground
P in Sig nal
5 DCIN
6 DCIN
7 V-out (by PER-T528)
8 V-out (by PER-T528)
P in Sig nal
6 DSR
7 RTS
8 CTS
9 RI
20