Com1/Com2 Rs232/Power Select - DFI CS331-C246 User Manual

CS331-C246/Q370
► Jumper Settings
COM1/COM2 RS232 Power Select
JP4 (COM 1)
I C
COM 1
9 1 COM 2
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
JP7 (COM 2)
17
▼ JP4 (COM 1)
2 4 6
1 3 5
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
▼ JP7 (COM 2)
2 4 6
1 3 5
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
Pin RS232
1 DCD-
1 2 3 4 5
2
SIN-
3
6 7 8 9
DTR-
4
5 GND
DSR-
6
9 1
RTS-
7
2
CTS-
8
9
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2 4 6
1 3 5
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
2 4 6
1 3 5
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
▼ COM 1/COM 2
RS232 with power
+12V
SIN-
SO- SO-
DTR-
GND
DSR-
RTS-
CTS-
RI- +5V