FabiaTech Corporation
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b. J3: Compact Flash Master/Slave Selection
The Compact Flash socket (on the bottom side) is optional and supports 3.3V
Compact Flash and Micro Drives. J3 is used to select master/slave device of this
socket. Be sure to ward off the same master/slave setting with which connects
to IDE1 connector, if you use IDE1 and compact flash simultaneously.
c. JP2 and JP3: COM2- R232/422/485 Selection
The DB9 (COM2) is standard serial port connector. The following tables show the
signal connections of DB9. Serial port 2 is designed for multiple proposes. Use JP2
selects the RS-232, RS-422 or RS-485
c-1. JU6 and JU7:COM1 and COM2 Power Source Selection
The COM1/COM2 Serial ports provide power source will driver the “RI” signal pin,
and JU7 (COM1) and JU6 (COM2) were located on the power output position.
DB-9
RS-232
RS-422 RS-485
1 -DCD2 TX-
485-
6 -DSR2
2 RXD2
RX+
7 -RTS2
3 -TXD2 TX+
485+
8 -CTS2
4 -DTR2 RX-
9 -RI2/+5V/+12V
5 Ground
Metal Case Ground
Master
J3
Slave
1 2 3
1 2 3
JU6
COM Pin9: RI
Factory Preset
1 2 3
1 2 3
COM2
PIN9:+12v
JU7
COM1
Pin9: RI1
Factory Preset
1 2 3
1 2 3
COM1
PIN9:+5v
JP3
RS-232
Factory Preset
RS-485
RS-422
3
1
10
12
5
2
6
1
5
2
6
1
5
2
6
1
1
10 1
JP2
3
1
10
12
JP JP
JP
JP
Note: COM1/2-Pin9/RI1/2 Signal by JU6/JU7
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