Com1/ Com2 Rs232/422/485 Select; Com1/Com2 Rs232 Power Select - DFI CR101-D User Manual

COM1/COM2 RS232/RS422/RS485 Select
JP4
COM 1
JP4 (for COM1) and JP13 (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's setting.
JP4/JP13
2 4 6 2 4 6
1 3 5
1 3 5
3-4 On: RS422
1-2 On: RS232
Full Duplex
(default)
COM 1
1 2 3 4 5 1 2 3 4 5
6 7 8 9
6 7 8 9
RS422
RS232
Full Duplex
Chapter 2 Hardware Installation
Chapter 2
JP13
COM 2
2 4
6
1 3 5
5-6 On: RS485
1 2 3 4 5
6 7 8 9
RS485
15

COM1/COM2 RS232 Power Select

JP1
2 4 6 2 4 6
1 3 5 1 3 5
1-3, 2-4 On: RS232 3-5 (+12V), 4-6 (+5V)
(default) On: RS232 with power
2 4 6
JP14
1 3 5
1-3, 2-4 On: RS232
(default)
2 4 6
1 3 5
3-5 (+12V), 4-6 (+5V)
On: RS232 with power
www.dfi .com