Com1/Com2 Rs232/Rs422/Rs485 Select - DFI OT951-D Series User Manual

COM1/COM2 RS232/RS422/RS485 Select

JP7
JP8
JP7 (for COM1) and JP8 (for COM2) are used to confi gure 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.
2 4 6
1 3 5
1-2 On: RS232
(default)
9
1
2
RS232
JP7/JP8
2 4 6
1 3 5
3-4 On: RS422
Full Duplex
COM 1 / COM 2
9 1
2
RS422
Full Duplex
Hardware Installation
COM 1
COM 2
2 4 6
1 3 5
5-6 On: RS485
1
9
2
RS485
2
23