Com1/Com2 Rs232/Power Select - DFI-ITOX SB331-IPM User Manual

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2
Hardware Installation

COM1/COM2 RS232/Power Select

JP1 and JP2 are used to configure COM 1 and COM 2 to pure RS232 or RS232
with power.
The pin function of COM 1 and COM 2 will vary according to JP1's and JP2's set-
ting respectively.
30
JP1
JP2
JP1 / JP2
2
4
6
1
3
5
1-3 (RI), 2-4 (DCD) On:
RS232 (default)
2
4
6
1
3
5
3-5 (+5V), 4-6 (+12V) On:
RS232 with power

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