Allen-Bradley 1756-CNB SER. E ControlLogix Communication Module

The 1756-CNB Series E is a ControlNet bridge module designed for Allen-Bradley ControlLogix systems. It provides a high-speed interface between the ControlLogix backplane and a ControlNet network for real-time control data and messaging. Part Number: 1756-CNB Series: E Module Type: ControlLogix ControlNet Bridge Module Network Type: ControlNet (coaxial or fiber) Backplane Current Draw: 5 VDC @ 600 mA Network Data Rate: 5 Mbps (ControlNet standard) Communication: Scheduled and unscheduled data support Node Address Range: 0–99 (configurable via rotary switches) Status Indicators: Module status, network status, OK, and node address LEDs Connector Type: BNC or fiber (depending on network medium) Chassis Compatibility: Any ControlLogix chassis with power supply Mounting: Chassis slot (standard ControlLogix rail mount) Operating Temperature: 0°C to 60°C (32°F to 140°F) Storage Temperature: –40°C to 85°C (–40°F to 185°F) Humidity: 5% to 95% non-condensing Certifications: UL, CSA, CE, c-UL-us, and Class I Div 2 Hazardous Location Approved Typical Applications: Distributed I/O systems, real-time control, high-speed deterministic communication in industrial automation systems Please review pictures carefully and let us know if you have any questions!