11
MVP-3245 User Manual
Chapter 2
H
ardware
F
unction
2.2.2
Communication Connector (COM1
~
COM2)
The MVP-3245 has two standard RS-232 serial communication connectors, labeled
as COM1 and COM2.
Please refer to the following pin table:
Follow these steps to configure the BIOS:
1.
After booting, enter the BIOS operation page;
2.
Select Advanced -> IT8768E Super I/O Configuration;
3.
Select Serial Port 3 Configuration -> COM3 Mode;
4.
Choose COM3 mode: RS-232 Mode / RS-422 Mode / RS-485 Mode;
5.
COM4 can be configured similarly.
Pin
Description
1
422TX-/485D-/DCD
2
422TX+/485D+/RX
3
422RX+/TX
4
422RX-/DTR
5
GND
6
DSR
7
RST
8
CTS
9
RI
Note!
COM1 and COM2 of the MVP-3245 enclosure correspond to COM3 and
COM4 of the BIOS layer, respectively.
To set COM1 of the MVP-3245, you should set COM3 of the BIOS inter-
face; similarly, to set COM2, you should set COM4 of the BIOS inter-
face.
Содержание MVP-3245 Series
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