FabiaTech Corporation
Jumper setting
The serial port 2 is designed for multiple proposes. Use BIOS setting or JP1 selects the
RS-232, RS422 or RS-485, JP3 provides terminator select of RS-485 mode,and JP2 is
select master/slave device of CF socket
JP2
JP1
JP3
a. JP3 & JP1: RS485 Terminal Select and RS422 or RS485 Port Selected
JP1
RS-422
6
1
2
5
BIOS Setting
6
1
2
5
5
6
COM2
RS-232
RS-422 RS-485
1 -DCD
6 -DSR
2 RXD RX-
485-
7 -RTS TX-
3 -TXD RX+
485+
8 -CTS TX+
4 -DTR
9 -RI
5 Ground
Metal Case Ground
1
2
RS-232
Default
6
1
2
5
RS-485
15
