F_USB1: USB0/USB1 Connector
Signal Name
Pin Pin
Signal Name
Vcc 1
2 Vcc
D0- 3
4 D1-
D0+ 5
6 D1+
Ground 7
8 Ground
NC 9
10
Ground
JP1, JP2, JP3: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only.
COM2 is selectable for RS232, RS-422 and RS-485.
The following table describes the jumper settings for COM2 selection.
COM2
Function
RS-232
RS-422
RS-485
Jumper
Setting
(pin closed)
JP3:
1-2
JP2:
3-5 & 4-6
JP1:
3-5 & 4-6
JP3:
3-4
JP2:
1-3 & 2-4
JP1:
1-3 & 2-4
JP3:
5-6
JP2:
1-3 & 2-4
JP1:
1-3 & 2-4
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin #
Signal Name
RS-232
R2-422 RS-485
1 DCD TX- DATA-
2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX-
NC
5 Ground Ground Ground
6 DSR RTS-
NC
7 RTS RTS+ NC
8 CTS CTS+ NC
9 RI CTS- NC
10 NC
NC
NC
19
2807950 User's Manual
Summary of Contents for 2807950
Page 1: ...User s Manual Version 1 0 April 2008 Mini ITX Motherboard 2807950 2807950 User s Manual ...
Page 16: ...Connector Locations on 2807950 12 2807950 User s Manual ...
Page 17: ...2807950 Solder Side 13 2807950 User s Manual ...
Page 30: ...INSTALLATIONS This page is intentionally left blank 26 2807950 User s Manual ...