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17
Chapter 2 Hardware Installation
Chapter 2
COM 10 RS232/422/485 Select
JP18
JP2, JP17 and JP18 are used to configure the COM port 10 to RS232, RS422 (Full Duplex) or
RS485.
The pin functions of the COM port 10 will vary according to these jumpers’ setting.
Note:
When COM 10 RS232/422/485 is selected, JP17 and JP18 must be set in accordance
to JP2.
6
4
2
5
3
1
6
4
2
5
3
1
JP2
5-6 On: RS485
6
4
2
5
3
1
1-2 On: RS232
(default)
3-4 On: RS422
Full Duplex
6
4
2
5
3
1
6
4
2
5
3
1
JP17 and JP18
1-3, 2-4 On:
RS232 (default)
3-5, 4-6 On:
RS422 Full Duplex/RS485
RS232
RXD
DCD-
TXD
DTR-
GND
DSR-
RTS-
CTS-
RI-
RS422
Full Duplex
RXD-
RXD+
TXD+
TXD-
NC.
NC.
NC.
NC.
NC.
RS485
DATA-
DATA+
NC.
NC.
NC.
NC.
NC.
NC.
COM 10
NC.
COM2
COM1
COM 10
JP17
JP2
2 1
9
10
2 1
9
10
2 1
9
10
2 1
9
10
