Vecow EVS-2000 LIQ, Руководство пользователя

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18 GETTING TO KNOW YOUR EVS-2000 LIQ
©Vecow EVS-2000 LIQ User Manual
2.3.3 COM Ports
DP DP
V+ V
DC-IN 9-50V
IGN On / Off
DP
DP
COM 1 COM 2 COM 3
Isolated DIO
D I PIN 1 ~ 8 DO PIN 11 ~ 18
20 11
10 1
Isolated DIO
D I PIN 1 ~ 8 DO PIN 11 ~ 18
20 11
10 1
Serial port 1~4 (COM 1~4) can be configured for RS-232, RS-422, or RS-485
with auto flow control communication. The default definition of COM 1 to COM4
is RS-232; but if you want to change to RS-422 or RS-485, you can find the
setting in BIOS.
BIOS Setting Function
COM 1
COM 2
COM 3
COM 4
RS-232
RS-422 (5-wire)
RS-422 (9-wire)
RS-485
RS-485 w/z auto-flow control
The rear i/Io D-SUB connector pin assignments are listed in the following table :
Serial Port Pin No. RS-232
RS-422
(5-wire)
RS-422
(9-wire)
RS-485
(3-wire)
1 to 4
1 DCD TXD- TXD- DATA-
2 RXD TXD+ TXD+ DATA+
3 TXD RXD+ RXD+
-----------
4 DTR RXD- RXD-
-----------
5 GND GND GND GND
6 DSR
-----------
RTS-
-----------
7 RTS
-----------
RTS+
-----------
8 CTS
-----------
CTS+
-----------
9 RI
-----------
CTS-
-----------
COM1 TO COM4 MB connector table :
COM Port MB Connector COM Port MB Connector
COM 1 COM 1 COM 2 COM 2
COM 3 COM 3 COM 4 COM 4