Com1/Com2 Rs232/Power Select - DFI RM641 User Manual

COM1/COM2 RS232/Power Select

I C
Battery
9 9
JP4
2 4 6
2 4 6
1 3 5
1 3 5
1-3 (RI), 2-4 (DCD) On: 3-5 (+5V), 4-6 (+12V) On:
RS232 (default) RS232 with power
JP8 (for COM 1) and JP4 (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 JP8's and
JP4's setting respectively.
Chapter 4 Jumper Settings
Chapter 4
6 5
JP8
4 3
2 1
1-3 (RI), 2-4 (DCD) On:
RS232 (default)
6 5
4 3
2 1
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
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