IEI Technology NOVA-GM45A, User Manual, Page: 55 / 153

NOVA-GM45A Motherboard
Page 43
Pin Description Pin Description
9 GND 10 GND
11 DATA CARRIER DETECT (DCD2) 12 DATA SET READY (DSR2)
13 RECEIVE DATA (RXD2) 14 REQUEST TO SEND (RTS2)
15 TRANSMIT DATA (TXD2) 16 CLEAR TO SEND (CTS2)
17 DATA TERMINAL READY (DTR2) 18 RING INDICATOR (RI2)
19 GND 20 GND
21 DATA CARRIER DETECT (DCD3) 22 DATA SET READY (DSR3)
23 RECEIVE DATA (RXD3) 24 REQUEST TO SEND (RTS3)
25 TRANSMIT DATA (TXD3) 26 CLEAR TO SEND (CTS3)
27 DATA TERMINAL READY (DTR3) 28 RING INDICATOR (RI3)
29 GND 30 GND
31 DATA CARRIER DETECT (DCD4) 32 DATA SET READY (DSR4)
33 RECEIVE DATA (RXD4) 34 REQUEST TO SEND (RTS4)
35 TRANSMIT DATA (TXD4) 36 CLEAR TO SEND (CTS4)
37 DATA TERMINAL READY (DTR4) 38 RING INDICATOR (RI4)
39 GND 40 GND
Table 3-23: Serial Port Connector Pinouts
3.2.23 Serial Port Connector
CN Label: COM5_6
CN Type: 14-pin header (2x7)
CN Location: See Figure 3-24
CN Pinouts: See Table 3-24
Used for RS-232/422/485 communications.