Interfaces and Connectors
VL-EPICs-36 Reference Manual
38
S
ERIAL
P
ORT
C
ONNECTORS
The pinouts of the DB9M connectors apply to the serial connectors on the VersaLogic breakout
board VL-CBR-5009. These connectors use IEC 61000-4-2-rated TVS components to help
protect against ESD damage.
Table 16: COM1-2 Pinout – VL-CBR-5009 Connector J3
COM1
COM2
Top DB9
J3 Pin
Bottom DB9
J3 Pin
RS-232
1
10
DCD
2
11
RXD*
3
12
TXD*
4
13
DTR
5
14
Ground
6
15
DSR
7
16
RTS
8
17
CTS
9
18
RI
Table 17: COM3-4 Pinout – VL-CBR-5009 Connectors J5-6
COM3
COM4
J6 Pin
J5 Pin
RS-232
RS-422
RS-485
1
1
Ground
Ground
Ground
2
2
RXD
RxD-
RxD-
3
3
CTS
RxD+
RxD+
4
4
TXD
TxD-
TxD-
5
5
RTS
TxD+
TxD+