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17
Chapter 2 Hardware Installation
Chapter 2
JP14 (COM 2)
COM1/COM2 RS232/Power Select
COM 2
COM 1
2
1
9
JP9 (COM 1)
JP9 (for COM 1) and JP14 (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 JP9’s and
JP14’s setting respectively.
COM 1/COM 2
1 2 3 4 5
6 7 8 9
2
1
9
Pin
RS232
RS232 with power
1
DCD-
+12V
2
RD
RD
3
TD
TD
4
DTR-
DTR-
5
GND
GND
6
DSR-
DSR-
7
RTS-
RTS-
8
CTS-
CTS-
9
RI-
+5V
JP9 (COM 1)
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
JP14 (COM 2)
2
4 6
1 3
5
2
4 6
1 3
5
2
4
6
1
3
5
1
3
5
2
4
6
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
