Allen-Bradley 1756-CN2RXT Redundant Coaxial Communication
Manufacturer: Allen Bradley
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Part Number: 1756-CN2RXT
Condition：New with Original Package
Product Type: ControlNet Communication Module
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Allen-Bradley 1756-CN2RXT ControlLogix Redundant ControlNet Module Extended Temperature
Product Description
The Allen-Bradley 1756-CN2RXT is a high-performance ControlNet™ communication bridge engineered for the most demanding industrial environments. As part of the ControlLogix® Extreme Environment (XT) series, this module is specifically designed to operate in expanded temperature ranges and harsh atmospheric conditions. It provides a deterministic, 5 Mbps communication link between controllers, I/O, and other devices, ensuring repeatable and predictable data delivery essential for complex process control.
The "RXT" designation signifies two critical capabilities: first, full redundancy support via dual BNC coaxial media ports (Channels A and B) for high-availability systems; and second, the "XT" rating, which allows the module to function reliably in temperatures ranging from -25°C to +70°C. Additionally, the 1756-CN2RXT includes a USB 1.1 port for convenient network access and a digital display for real-time node diagnostics and status monitoring.
Technical Specifications
The following specifications detail the electrical and environmental parameters for the 1756-CN2RXT:
| Parameter | Specification Details |
| Model Number | 1756-CN2RXT |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Type | ControlNet Bridge Module (Redundant/XT) |
| Operating Temperature | -25 °C to +70 °C (-13 °F to +158 °F) |
| Logix Connections | Up to 128 Connections |
| ControlNet Nodes | Max 99 Nodes |
| Data Transfer Rate | 5 Mbps |
| Communication Ports | 2 BNC (Coaxial Redundancy), 1 USB (Access Point) |
| Backplane Current (5.1V) | 1100 mA |
| Backplane Current (24V) | 3 mA |
| Power Dissipation | 5.6 Watts |
| Thermal Dissipation | 19.1 BTU/hr |
| Isolation Voltage | 30V (Continuous), Basic Insulation Type |
| Mounting | Chassis (Any Slot) |
| Module Width | 1 Slot |