IEI Integration KINO-9453 v2.10 - Manual (Page 68)

KINO-9453 Mini-ITX Motherboard
Page 51
4.3.6 Serial Port Connectors
CN Label: COM1/2
CN Type: DB-9
CN Location: See Figure 4-14
CN Pinouts: See Table 4-20 and Figure 4-20
The serial ports can be connected to a serial communications device directly.
Figure 4-20: External Serial Port Connector
PIN Description
1 DATA CARRIER DETECT (DCD)
2 RECEIVE DATA (RXD)
3 TRANSMIT DATA (TXD)
4 DATA TERMINAL READY (DTR)
5 GROUND (GND)
6 DATA SET READY (DSR)
7 REQUEST TO SEND (RTS)
8 CLEAR TO SEND (CTS)
9 RING INDICATOR (RI)
Table 4-20: External Serial Port Pinouts