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14
Chapter 2 Hardware Installation
Chapter 2
COM1/COM2 RS232/Power Select
JP2 (for COM 1) and JP5 (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 JP2’s and
JP5’s setting respectively.
2
JP2 JP5
COM 1/COM 2
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
JP2 (for COM 1)
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
JP5 (for COM 2)
1-3 (RI-), 2-4 (DCD-) On:
RS232 (default)
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
6 4 2
5 3 1
COM 1
COM 2
