INTERBUS (IEC 61158-2) is a serial ring fieldbus for factory automation using a 9-pin D-sub connector in a ring topology where data travels out from the master and returns on a separate path.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | DO+ | Data out positive | BUS |
| 2 | DO- | Data out negative | BUS |
| 3 | DI+ | Data in positive | BUS |
| 4 | DI- | Data in negative | BUS |
| 5 | NC | Not connected | I/O |
| 6 | GND | Ground | GND |
| 7 | VCC | Supply voltage | PWR |
| 8 | RB+ | Remote bus positive | BUS |
| 9 | RB- | Remote bus negative | BUS |
INTERBUS (IEC 61158-2) is a serial ring fieldbus for factory automation using a 9-pin D-sub connector in a ring topology where data travels out from the master and returns on a separate path.