IEI Technology NOVA-PV-D5251, User Manual

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NOVA-PV-D5251/D4251 5.25" SBC
Page 51
This connector provides RS-232 connections for four serial ports.
Figure 3-26: COM Connector Locations
Pin Description Pin Description
1
DATA CARRIER DETECT (DCD1#) 2 DATA SET READY (DSR1#)
3
RECEIVE DATA (RXD1) 4 REQUEST TO SEND (RTS1#)
5
TRANSMIT DATA (TXD1) 6 CLEAR TO SEND (CTS1#)
7
DATA TERMINAL READY (DTR1#) 8 RING INDICATOR (RI1#)
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#)