Beckhoff EtherCAT junctions connect EtherCAT segments using RJ45 connectors allowing ring or tree topology with sub-100us cycle times.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | TX+ | EtherCAT transmit positive | BUS |
| 2 | TX- | EtherCAT transmit negative | BUS |
| 3 | RX+ | EtherCAT receive positive | BUS |
| 6 | RX- | EtherCAT receive negative | BUS |