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SKU:1756-CN2RXT
Allen-Bradley 1756-CN2RXT ControlNet Redundant Bridge Module
Manufacturer: Allen-Bradley
Product No.: 1756-CN2RXT
Product Type: Redundant Bridge Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 293g
Shipping port: Xiamen
Warranty: 12 months
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Description
Engineered by Allen-Bradley, a Rockwell Automation brand, the 1756-CN2RXT excels in tough settings. This ControlLogix-XT module ensures fast, reliable ControlNet bridging with top priority for I/O tasks. It thrives in corrosive, extreme heat or cold spaces while delivering 128 Logix links and solid redundancy.
Overview of Allen-Bradley 1756-CN2RXT Redundant Media Bridge
- Part of the ControlLogix series, it links controllers and I/O with zero messaging delay.
- Operates in -25…70 °C (-13…158 °F) for harsh, corrosive zones.
- Gives 1756-CN2RXT users 131 max links, reserving 3 for nonstop redundant control safety.
- Serves up to 99 nodes on a 5 Mbps ControlNet link reliably.
Technical Specifications – Brand: Allen-Bradley | Model: 1756-CN2RXT
- Voltage: 5.1 V DC; Current: 1.3 A; Power: 6.6 W.
- Communication rate: 5 Mbps; Logix links: 128; Max links: 131.
- Supports 99 nodes; Slot width: 1; Fits any chassis slot location.
- Weight: 0.64 lbs (0.293 kg); UPC: 10612598554833.
- Isolation: 30V continuous, basic insulation ensures safe signal paths.
- Ports: One USB 1.1 full-speed (12 Mbps) and two ControlNet BNC ports.
- Uses 1786-RG6 quad-shield RG6 coax cable for steady data flow.
Installation Guidelines
- Fit 1756-CN2RXT into any slot of 1756-A4LXT, 1756-A5XT, 1756-A7XT, 1756-A7LXT chassis.
- Mount module away from strong EMI sources to keep signals clear and accurate.
- Connect BNC ports using proper RG6 coax to reach full 5 Mbps speed.
- Check power input matches 5.1 V DC spec to avoid startup or link faults.
Package Contents
- One 1756-CN2RXT ControlNet redundant bridge module ready for setup.
- No extra accessories listed; ensure you have RG6 cables and chassis beforehand.
- Ships via FedEx, UPS, or DHL for swift, tracked delivery worldwide.
Frequently Asked Questions
-
Q: Can 1756-CN2RXT work in sub-zero industrial sites?
A: Yes, it runs safely from -25 °C onward in harsh, wet, or corrosive zones. -
Q: How many ControlNet nodes can this module handle at once?
A: It supports up to 99 nodes with 131 total communication links. -
Q: Does 1756-CN2RXT need special cables for ControlNet ports?
A: Yes, use 1786-RG6 quad-shield RG6 coax for stable 5 Mbps links.
Additional Specifications
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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