
System Layout
21
MVP-5100
3.1.12
COM Port Connectors
The MVP-5100 provides four COM ports through D-sub 9-pin con-
nectors. The COM1 & COM2 ports support RS-232/422/485
modes by BIOS setting, while COM3 and COM4 support only RS-
232.
Figure 3-10: COM Port Pin Definition
Table 3-11: D-Sub 9-pin Signal Function of COM Ports
Pin
Signal Name
RS-232
RS-422
RS-485
1
DCD#
TXD422-
485DATA-
2
RXD
3
TXD
N/S
4
DTR#
RXD422-
N/S
5
GND
N/S
N/S
6
DSR#
N/S
N/S
7
RTS#
N/S
N/S
8
CTS#
N/S
N/S
9
RI#
N/S
N/S
1
5
6
9
Содержание MVP-5100
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