DFI-ITOX EL332-IP User Manual page 30

2
Hardware Installation
Pin Functions
The pin function of the COM ports will vary according to the jumper's setting.
1 2 3 4 5
6 7 8 9
RS232
9
RS232
30
COM 1 / COM 2
1 2 3 4 5
6 7 8 9
RS422
Half Duplex
COM 3 / COM 4
1 9
2
RS422
Half Duplex
1 2 3 4 5
6 7 8 9
RS485
1
9
2
RS485
1
2