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CS331-C246/Q370
► Jumper Settings
COM1/COM2 RS232/422/485 Select
JP2
JP1 (COM 1)
(COM 1)
I C
COM 1
9
JP1/JP2/JP3 (for COM 1) and JP6/JP8/JP10 (for COM 2) are used to configure the COM ports
to RS232, RS422 (Full Duplex) or RS485. When COM 1 RS232/422/485 is selected, JP1 and
JP2 must be set in accordance to JP3. When COM 2 RS232/422/485 is selected, JP6 and JP8
must be set in accordance to JP10. The pin functions of the COM ports will vary according to
the jumpers' setting.
Chapter 2 - Hardware Installation
JP3
(COM 1)
JP10 (COM 2)
JP6 (COM 2)
JP8 (COM 2)
COM 2
1
2
▼ JP3 (COM1)/JP10 (COM2)
2 4 6
1 3 5
1-3, 4-6 On:
RS232 (default)
2 4 6
1 3 5
1-3, 2-4 On:
RS232 (default)
2 4 6
1 3 5
1-3, 2-4 On:
RS232 (default)
1 2 3 4 5
6 7 8 9
1
9
2
16
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2 4 6
2 4 6
1 3 5
1 3 5
3-5, 4-6 On:
3-5, 2-4 On:
RS422 Full Duplex
RS485
▼ JP1/JP2 (COM 1)
2 4 6
2 4 6
1 3 5
1 3 5
3-5, 4-6 On:
3-5, 4-6 On:
RS422 Full Duplex
RS485
▼ JP6/JP8 (COM 2)
2 4 6
2 4 6
1 3 5
1 3 5
3-5, 4-6 On:
3-5, 4-6 On:
RS422 Full Duplex
RS485
▼ COM 1/COM 2
Pin
RS232
RS422 Full Duplex
DCD-
RX+
1
SIN-
RX-
2
SO-
TX+
3
DTR-
TX-
4
GND
GND
5
DSR-
NC
6
RTS-
NC
7
CTS-
NC
8
RI-
NC
9
RS485
DATA+
DATA-
NC
NC
GND
NC
NC
NC
NC
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