Vecow EMBC-2000 User Manual page 20

Pin No.
15
13
11
9
7
5
3
1
2.2.8 CN6 To CN9 : COM 1 To COM 4 Serial Port
The serial port 1 to 4 can be configured for RS-232, RS-422, or RS-485 with auto
flow control communication. The default definition of COM 1 to COM 4 is RS-232.
If you want to change to RS-422 or RS-485, you can find the setting in BIOS.
COM 1 (CN6) (Isolated)
COM 2 (CN7) (Isolated)
COM 3 (CN8)
COM 4 (CN9)
©Vecow EMBC-2000 User Manual
Signal Name
GND
REFCLK+
REFCLK-
GND
CLKREQ#
Reserved
Reserved
WAKE#
BIOS Setting
Mechanical Key
Pin No.
16
14
12
10
8
6
4
2
Function
RS-232
RS-422 (5-wire)
RS-422 (9-wire)
RS-485
RS-485 w/z auto-flow control
GETTING TO KNOW YOUR EMBC-2000
Signal Name
UIM_VPP
UIM_RESET
UIM_CLK
UIM_DATA
UIM_PWR
1.5V
GND
3.3Vaux
CN8
CN6
14
CN9
CN7