Com1/Com2 Rs232/Rs422/Rs485 Select (Mb330-Crm); Com1/Com2 Rs232/Power Select (Mb330-Crm) - DFI WM343-MB User Manual

COM1/COM2 RS232/RS422/RS485 Select (MB330-CRM)

JP2
COM 1
Line-out
JP2 (for COM1) and JP7 (for COM2) are used to configure the COM ports to RS232, RS422
(Full Duplex) or RS485.
The pin function of the COM ports will vary according to the jumper settings.
JP2/JP7
2 4 6
1 3 5
1-2 On: RS232 3-4 On: RS422
(default) Full Duplex
COM 1 / COM 2
1 2 3 4 5 1 2 3 4 5
6 7 8 9 6 7 8 9
RS232
Full Duplex
Chapter 4 Jumper Settings
JP7
COM 2
2 4 6 2 4 6
1 3 5
1 3 5
5-6 On: RS485
1 2 3 4 5
6 7 8 9
RS422 RS485
Chapter 4

COM1/COM2 RS232/Power Select (MB330-CRM)

Line-out
JP3
1 2
1-3 (RI), 2-4 (DCD) On:
3
4
RS232 (default)
5
6
1 2
3-5 (+5V), 4-6 (+12V) On:
3
4
RS232 with power
5 6
19
JP6
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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