| Model | 1756-CNB |
| Manufacturer | Allen-Bradley |
| Series | ControlLogix |
| Product Type | ControlNet Bridge Module |
| Communication Network | ControlNet |
| ControlNet Port | 1 BNC Port |
| NAP Port | 1 RJ45 NAP Port |
| Transmission Rate | 5 Mbps |
| Maximum Connections | 64 |
| Logix Communication Connections | 40 to 48 |
| Maximum Nodes | 99 |
| Current Draw | 970 mA at 5.1V DC; 1.7 mA at 24V DC |
| Power Dissipation | 5.1 W |
| Mounting | ControlLogix Chassis, Any Slot |
| Operating Temperature | 0 to 60 °C |