Com1/Com2 Rs232/Power Select - DFI SD330 User Manual

COM1/COM2 RS232/422/485 Select
2 4 6
2 4 6
1 3 5
1 3 5
1-3 , 2-4 On: 3-5 , 4-6 On:
RS232 (default)
RS422 Full Duplex/RS485
JP8
JP10
(COM 1)
(COM 1)
JP8/10 (for COM1) and JP12/13 (for COM 2) are used to configure Serial COM ports to RS232,
RS422 (Full Duplex) or RS485. The pin functions of Serial COM port 1 and port 2 will vary ac-
cording to jumper setting.
Chapter 2 Hardware Installation
Chapter 2
1
JP13 JP12
(COM 2) (COM 2)
2 4 6
2 4 6
1 3 5
1 3 5
1-3 , 2-4 On: 3-5 , 4-6 On:
RS232 (default) RS422 Full Duplex/RS485

COM1/COM2 RS232/Power Select

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.
16
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
1
JP14
(COM 2)
6 5 6 5
4
4 3 3
1
2 1 2
1-3 (RI), 2-4 (DCD) On: 3-5 (+5V), 4-6 (+12V) On:
RS232 with power
RS232 (default)
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