ERbic Profibus
| Terminal | D-Sub Pin | Signal |
| B (1) | 3 | RxD/TxD-P |
| A (2) | 8 | RxD/TxD-N |
| B (3) | 3 | RxD/TxD-P |
| A (4) | 8 | RxD/TxD-N |
| - | 5 | GND |
| - | 6 | VP (+5V) |
ERbic Profibus Ex i
| Terminal | D-Sub Pin | Signal |
| B (1) | 3 | RxD/TxD-P |
| A (2) | 8 | RxD/TxD-N |
| B (3) | 3 | RxD/TxD-P |
| A (4) | 8 | RxD/TxD-N |
| - | 5 | GND |
| - | 6 | VP (+5V) |
ERbic CAN Bus (HLG-Version)
| Terminal | D-Sub Pin | Signal |
| 1, 6 | 3 | CAN-GND |
| 2, 4 | 2 | CAN-L |
| 3, 5 | 7 | CAN-H |
| - | 5 | CAN-SHLD |
ERbic CAN Bus (no HLG-Version)
| Terminal | D-Sub Pin | Signal |
| 1, 9 | 9 | V+ |
| 2, 10 | 6 | V+ GND |
| 3, 8 | 3 | CAN-GND |
| 4, 6 | 2 | CAN-L |
| 5, 7 | 7 | CAN-H |
| - | 5 | CAN-SHLD |
ERbic SafetyBUS p (HLG-Version)
| Terminal | D-Sub Pin | Signal |
| 1 | 3 | CAN-GND |
| 2 | 2 | CAN-L |
| 3 | 7 | CAN-H |
| - | 5 | CAN-SHLD |