Serial Port Connectors - VersaLogic Python EBX-11 Reference Manual

S P C
ERIAL ORT ONNECTORS
See the Connector Location Diagrams on pages 16 for connector and cable information. The
pinouts of the DB9M connectors apply to the serial connectors on the VersaLogic breakout board
CBR-5009.
These connectors use IEC 61000-4-2-rated TVS components to help protect against ESD
damage.
Note:
On Rev. 4 boards, the COM3 and COM4 connectors have a nonstandard pinout.
The RxD+ and RxD- signals are transposed, as shown in Table 11. The standard
pinout is used on Rev. 5 boards, as shown in Table 10.
Table 10: COM3-4 Pinout – CBR-5009 Connectors J5-6 – Rev. 5 Boards
Table 11: COM3-4 Pinout – CBR-5009 Connectors J5-6 – Rev. 4 Boards
EBX-11 Reference manual
Table 9: COM1-2 Pinout – CBR-5009 Connector J3
COM1 COM2
Top DB9 Bottom DB9
J3 Pin J3 Pin
1 10
2 11
3 12
4 13
5 14
6 15
7 16
8 17
9 18
COM3 COM4
J6 Pin J5 Pin
1 1
2 2
3 3
4 4
5 5
COM3 COM4
J6 Pin J5 Pin
1 1
2 2
3 3
4 4
5 5
Interfaces and Connectors
RS-232
DCD
RXD*
TXD*
DTR
Ground
DSR
RTS
CTS
RI
RS-232 RS-422
Ground Ground
RXD RxD-
CTS RxD+
TXD TxD-
RTS TxD+
RS-232 RS-422
Ground Ground
CTS RxD+
RXD RxD-
TXD TxD-
RTS TxD+
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