Overview
The Allen-Bradley 1768-CNBR is a ControlNet redundant bridging module designed for CompactLogix automation systems. It enables high-speed, deterministic communication across ControlNet networks while supporting redundant media paths to enhance system reliability, stability, and fault tolerance in industrial control environments.
General Information
Part Number: 1768-CNBR
Brand: Allen-Bradley (Rockwell Automation)
Country of Origin: USA
Series: CompactLogix 1768 Series
Type: ControlNet Redundant Bridging Module
Installation: Rack-mounted within CompactLogix controller chassis
Function: Network bridging and redundant ControlNet communication support
Application: Industrial automation, distributed control systems, process and factory networking
Power Specifications
Supply Method: Powered via CompactLogix backplane
Input Voltage: 5 V DC (internal system backplane)
Power Consumption: Low power consumption optimized for PLC rack integration
Protection: Electrical isolation and built-in backplane protection
Status Indication: LED indicators for power, network activity, and fault status
Communication & Interface
Network Protocol: ControlNet
Media Support: Dual redundant ControlNet media channels
Connectors: BNC coaxial connectors (dual channel)
Data Handling: Deterministic real-time industrial communication
Function: Bridge between CompactLogix controller and ControlNet network devices
Diagnostics: Network status monitoring, fault detection, and link supervision
Configuration: Integrated via Rockwell Studio 5000 software environment
Environmental
Operating Temperature: 0 to 60 °C
Storage Temperature: -40 to 85 °C
Relative Humidity: 5% to 95% non-condensing
Shock & Vibration: Industrial-grade resistance for control cabinet environments
Protection Rating: Suitable for industrial enclosure installation
Dimensions & Weight
Dimensions (L × W × H): 132 × 56.7 × 105.1 mm
Weight: 0.293 kg
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