Jp1: Lcd Panel Power Selection; Jp2: Atx/At Mode Select; Jp3, Jp4, Jp5: Rs232/422/485 (Com2) Selection - Intel MI810 User Manual

INSTALLATIONS

JP1: LCD Panel Power Selection

JP2: ATX/AT Mode Select

JP3, JP4, JP5: RS232/422/485 (COM2) Selection

COM1/3/4 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.
Function
(pin closed)
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin #
11
13
15
17
19
12
14
16
18
20
10
JP1
JP2
COM2
RS-232
JP5:
1-2
Jumper
JP4:
Setting
3-5 & 4-6
JP3:
3-5 & 4-6
Signal Name
RS-232
DCD
RX
TX
DTR
Ground
DSR
RTS
CTS
RI
NC
MI810 User's Manual
LCD Panel Power
3.3V
5V
ATX / AT
ATX mode
AT mode
RS-422
JP5:
3-4
JP4:
1-3 & 2-4
JP3:
1-3 & 2-4
R2-422 RS-485
TX- DATA-
TX+ DATA+
RX+ NC
RX- NC
Ground Ground
RTS- NC
RTS+ NC
CTS+ NC
CTS- NC
NC NC
RS-485
JP5:
5-6
JP4:
1-3 & 2-4
JP3:
1-3 & 2-4