Com1/Com2 Rs232/Power Select - DFI CS330 User Manual

COM1/COM2 RS232 Power Select
JP4 (COM 1)
COM 1
9 1
2
JP4 (for COM 1) and JP7 (for COM 2) are used to configure Serial COM ports to pure RS232
or RS232 with power. The pin functions of COM 1 and COM 2 will vary according to JP4's and
JP7's setting respectively.
Chapter 2 Hardware Installation
COM 2
JP7 (COM 2)
Chapter 2
2 4 6
1 3 5
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
6 5
4 3
2 1
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
1 2 3 4 5
6 7 8 9
Pin
1
2
3
4
5
6
7
8
9
17
JP4 (COM 1)
2 4 6
1 3 5
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
JP7 (COM 2)
6 5
3
4
2
1
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
COM 1/COM 2
9 1
2
RS232 RS232 with power
DCD- +12V
RD RD
TD TD
DTR- DTR-
GND GND
DSR- DSR-
RTS- RTS-
CTS- CTS-
RI- +5V
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