F_Usb1: Usb0/Usb1 Connector; Jp1, Jp2, Jp3: Rs232/422/485 (Com2) Selection - IBASE Technology MI910E User Manual

F_USB1: USB0/USB1 Connector

Signal Name

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
Jumper
Setting
(pin closed)
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin #
RS-232
1 DCD
2 RX
3 TX
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
9
10 NC
MI910 User's Manual
INSTALLATIONS
Pin Pin
Vcc 1 2
D0- 3 4
D0+ 5 6
Ground 7 8
NC 9 10
RS-232 RS-422
JP3: JP3:
1-2 3-4
JP2: JP2:
3-5 & 4-6 1-3 & 2-4
JP1: JP1:
3-5 & 4-6 1-3 & 2-4
Signal Name
R2-422 RS-485
TX- DATA-
TX+ DATA+
RX+ NC
RX- NC
Ground Ground
RTS- NC
RTS+ NC
CTS+ NC
RI CTS- NC
NC NC
Signal Name
Vcc
D1-
D1+
Ground
Ground
RS-485
JP3:
5-6
JP2:
1-3 & 2-4
JP1:
1-3 & 2-4
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