5
Ports and Connectors
EC200/210/220/221-LR6881
COM 3 to COM 6 RS232/RS422/RS485 Select
JP1
COM 3
(JP1)
JP1 (for COM 3), JP2 (for COM 4), JP5 (for COM 5) and JP8 (for COM 6) 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
1
1-2 On: RS232
(default)
1 2 3 4 5
6
100
JP2
JP5
COM 4
COM 5
(JP2)
(JP5)
JP1 / JP2 / JP5 / JP8
4
6
3
5
COM 3 / COM 4 / COM 5 / COM 6
7
8 9
JP8
COM 6
(JP8)
2
4
6
1
3
5
3-4 On: RS422
Full Duplex
1 2 3 4 5
6
7
8 9
2
4
6
1
3
5
5-6 On: RS485
1 2 3 4 5
6
8 9
7