| rowspan="2" style="text-align: center;" | 3
| style="text-align: center;" | on
| Connect 120R Termination 120 Ohm termination for Trasmitter Pairtransmitter pair
|-
| style="text-align: center;" | off
| Disconnect any Termination termination for Trasmitter Pairtransmitter pair
|-
| rowspan="2" style="text-align: center;" | 4
| style="text-align: center;" | on
| Connect 120R Termination 120 Ohm termination for Receiver Pairreceiver pair
|-
| style="text-align: center;" | off
| Disconnect any Termination termination for Receiver Pairreceiver pair
|}
| rowspan="2" style="text-align: center;" | 5
| style="text-align: center;" | on
| Connect 120R Termination 120 Ohm termination for Trasmitter Pairtransmitter pair
|-
| style="text-align: center;" | off
| Disconnect any Termination termination for Trasmitter Pairtransmitter pair
|-
| rowspan="2" style="text-align: center;" | 6
| style="text-align: center;" | on
| Connect 120R Termination 120 Ohm termination for Receiver Pairreceiver pair
|-
| style="text-align: center;" | off
| Disconnect any Termination termination for Receiver Pairreceiver pair
|}
===RS485 configuration===
{| class="wikitable" style="text-align: center;"