
70
4
Jumper Settings
COM 3 to COM 6 RS232/Power Select
JP3, JP4, JP6 and JP7 are used to confi gure COM 3 to COM 6 to to pure RS232
or RS232 with power.
The pin function of COM 3 to COM 6 will vary according to JP3’s, JP4’s, JP6’s and
JP7’s setting respectively.
JP3 / JP4 / JP6 / JP7
COM 3 / COM 4 / COM 6 / COM 7
JP6JP3
1-3, 2-4 On:
RS232 (default)
64
2
531
3-5(+12V), 4-6(+5V) On:
RS232 with power
64
2
531
DCD
TXD
RXD
DTR
GND
12345
DSR
+5V
TD
RD
DTR-
GND
12345
6789
JP4
JP7
COM 3
(JP3)
COM 4
(JP6)
COM 5
(JP4)
COM 6
(JP87)
689
7
CTS
RTS
RI
RTS-
+12V
DSR-
CTS-
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