Owner manual
Table Of Contents
PC/104 CPU Module PFM-540I Rev.B
Chapter 2 Quick Installation Guide 2 - 16
7 RTS 8 CTS
9 RI/5V 10 N.C
2.20 COM3 Connector (CN11)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C
2.21 Power Connector (CN12)
Pin Signal
1 +5V
2 GND
3 GND
4 +12V
2.22 COM 2 Connector (CN13)
Pin Signal Pin Signal
1
DCD(485/422_TX-)
2
RXD(422_RX+)
3
TXD(485/422_TX+)
4
DTR(422_RX-)
5
GND
6
DSR
7
RTS
8
CTS