AXIOMTEK MANO110 Series, User Manual

Page: 29 / 69

MANO110 Series Mini ITX Board U
ser’s Manual
Hardwarre Description
23

2.4.13 COM2, COM3 and COM4 Connectors
(CN30,CN2 4 ,CN25,)
Please refer to the RS-232 pin assignment as listed below:
Pin Signal Pin Signal
COM2/3/4
1 Data Carrier Detect (DCD) 2
Data Set Ready
(DSR)
3 Receive Data (RXD) 4
Request to Send
(RTS)
5 Transmit Data (TXD) 6
Clear to Send
(CTS)
7 Data Terminal Ready (DTR) 8 Ring Indicator (RI)
9 Ground (GND) 10 Key

2.4.14 SMBUS Connector (CN26)
Connector SMBUS1 is for SMBUS interface support.
Pin Signal
SMBUS(CN26)
1 CLOCK
2 DATA
3 GND