IEI Integration KINO-QM770 - Manual (Page 67)

KINO-QM770 Mini-ITX SBC
Page 51
3.3.6 Serial Port Connector (COM1)
CN Label: COM1
CN Type: DB-9
CN Location: See Figure 3-29
CN Pinouts: See Table 3-35
The serial port connects to a RS-232 serial communications device.
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DATA CARRIER DETECT (DCD1) 6 DATA SET READY (DSR1)
2 RECEIVE DATA (RXD1) 7 REQUEST TO SEND (RTS1)
3 TRANSMIT DATA (TXD1) 8 CLEAR TO SEND (CTS1)
4 DATA TERMINAL READY (DTR1) 9 RING INDICATOR (RI1)
5 GND
Table 3-35: Serial Port Pinouts
Figure 3-35: Serial Port Pinouts