IEI Integration NOVA-PV-D4251_D5251 v1.10 - Manual (Page 68)

NOVA-PV-D5251/D4251 5.25" SBC
Page 52
Pin Description Pin Description
35 TRANSMIT DATA (TXD4) 36 CLEAR TO SEND (CTS4#)
37 DATA TERMINAL READY (DTR4#) 38 RING INDICATOR (RI4#)
39 GND 40 GND
Table 3-26: Serial Port Connector Pinouts
3.2.25 Serial Port Connector (RS-232/422/485)
CN Label: COM6
CN Type: 14-pin header (2x7)
CN Location: See Figure 3-27
CN Pinouts: See Table 3-27
Used for RS-232/422/485 communications.
Figure 3-27: Serial Port Connector Location
Pin DESCRIPTION Pin DESCRIPTION
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#)