ENDAT-D2550 USERS MANUAL
UNICORN COMPUTER CORP.
12
JP10: LCD Backlight Voltage (for +5V) (1x2 with 2.0mm)
Voltage
JP10 (LVDS1)
+5V
JUSBP7: USB Port Select (2x3 with 2.0mm)
J11 USB 7 Header
Mini PCIE Slot*
JUSB7
1-3,2-4
3-5,4-6
Notice: JUSBP7 sets USN PORT7 as PCIe slot or USB Header.
Part 2: Onboard Connectors and Headers
D-SUB Type Connector for COM1,2,3 port (RS-232)
Pin No.
Function
Pin No.
Function
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
GND
D-SUB Type Connector for COM2 port (RS-485
2 Wire)
Pin No.
Function
Pin No.
Function
1
Data –
6
NA
2
Data +
7
NA
3
NA
8
NA
4
NA
9
NA
5
NA
D-SUB Type Connector for COM2 port (RS-422
4 Wire)
Pin No.
Function
Pin No.
Function
1
–TXD
6
NA
2
+RXD
7
NA
3
+TXD
8
NA
4
–RXD
9
NA
5
NA
