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COM1/COM2 RS232/422/485 Select
COM 1
COM 2
10
2
9
1
JP5/JP6/JP7 (for COM1) and JP1/JP2/JP3 (for COM2) are used to configure the COM ports to
RS232, RS422 (Full Duplex) or RS485. When COM 1 RS232/422/485 is selected, JP6 and JP7
must be set in accordance to JP5. When COM 2 RS232/422/485 is selected, JP2 and JP3 must
be set in accordance to JP1. The pin functions of the COM ports will vary according to the
jumpers' setting.
Chapter 2 Hardware Installation
Chapter 2
JP5
JP7
JP6
19
JP1
JP2
JP3
9
9
17
JP5 (COM 1)/JP1 (COM 2)
2 4 6
5
3
1
2 4 6
6
4
2
1 3 5
1 3 5
1-2 On:
3-4 On:
RS232 (default)
RS422 Full Duplex
JP6/JP7 (COM 1)
2 4 6
2 4 6
1 3 5
1 3 5
1-3, 2-4 On:
3-5, 4-6 On:
RS232 (default)
RS422 Full Duplex
JP2/JP3 (COM 2)
5
3
1
5
3
6
4
2
6
4
1-3, 2-4 On:
3-5, 4-6 On:
RS232 (default)
RS422 Full Duplex
COM 1/COM 2
1 2 3 4 5
6 7 8 9
Pin
RS232
RS422 Full Duplex
1
DCD-
2
RD
TD
3
DTR-
4
GND
5
DSR-
6
RTS-
7
CTS-
8
RI-
9
2 4 6
5
3
1
5
3
1
1 3 5
6
4
2
6
4
2
5-6 On:
RS485
2 4 6
1 3 5
3-5, 4-6 On:
RS485
1
5
3
1
6
4
2
2
3-5, 4-6 On:
RS485
10
2
9
1
RS485
RXD+
DATA+
RXD-
DATA-
TXD+
N.C.
TXD-
N.C.
GND
GND
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
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