Com1/Com2 Rs232/422/485 Select - DFI CS330 User Manual

COM1/COM2 RS232/422/485 Select

JP2 JP1 (COM 1)
(COM 1)
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, JP2 and
JP3 must be set in accordance to JP1. 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)
JP6 (COM 2)
JP8 (COM 2)
JP10 (COM 2)
1
2
COM 2
Chapter 2
2 4 6
1 3 5
1-2 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
Pin RS232
1
DCD-
2
RD
TD
3
DTR-
4
GND
5
DSR-
6
RTS-
7
CTS-
8
RI-
9
16
JP1 (COM1)/JP10 (COM2)
2 4 6
2 4 6
1 3 5
1 3 5
3-4 On:
5-6 On:
RS422 Full Duplex
RS485
JP2/JP3 (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
1
9
2
RS422 Full Duplex 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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