Genuine Allen-Bradley 1756-CN2/C ControlNet Communication Bridge Module | ControlLogix Series – Verified Source
The Allen-Bradley 1756-CN2/C is a ControlNet Communication Bridge Module designed for the Rockwell Automation ControlLogix platform. Konmask.com sources this module through verified industrial supply channels, ensuring authenticity, firmware integrity, and full traceability for mission-critical automation environments.
Technical Specifications
- Manufacturer: Allen-Bradley / Rockwell Automation
- Part Number: 1756-CN2/C
- Series / Revision: Series C
- Module Type: ControlNet Communication Bridge
- Platform: ControlLogix (1756 Chassis)
- Network: ControlNet (IEC 61158 / EN 50170)
- Data Rate: 5 Mbps
- Backplane Current Draw: 1.0 A @ 5 VDC
- Operating Temperature: 0 °C to 60 °C (32 °F to 140 °F)
- Storage Temperature: -40 °C to 85 °C
- Relative Humidity: 5% to 95% non-condensing
- Certifications: UL, CE, cUL
- Weight: Approx. 100 g
- Dimensions: Standard 1756 single-slot form factor
Our 4-Step Quality Verification Process
Every 1756-CN2/C unit shipped from Konmask.com passes through our rigorous 4-step verification protocol before dispatch:
- Step 1 — Source Authentication: Module is traced to authorized distributors or OEM-certified supply chains. Serial numbers and date codes are cross-referenced against Rockwell Automation records.
- Step 2 — Physical Inspection: Housing, label printing, connector pins, and PCB markings are inspected against genuine reference units. Counterfeit indicators are checked per industry standards.
- Step 3 — Functional Bench Test: Module is powered up in a live ControlLogix chassis. ControlNet network communication, backplane recognition, and firmware version are verified.
- Step 4 — Documentation Package: Each unit ships with a test report, sourcing declaration, and packaging integrity seal. Full traceability documentation available upon request.
Key Features & Benefits
- Bridges ControlLogix backplane to ControlNet network — enabling deterministic, real-time I/O and peer-to-peer messaging
- Supports scheduled and unscheduled messaging for flexible network architecture
- Redundant media capability — supports dual coax or fiber ControlNet topologies
- Hot-swap capable within ControlLogix chassis — minimizes downtime during maintenance
- Compatible with RSNetWorx for ControlNet configuration software
- Firmware upgradeable via ControlFlash utility
- LED diagnostics for rapid fault isolation on the plant floor
Typical Applications
- Automotive assembly line control and synchronization
- Oil & gas process control and SCADA integration
- Water treatment and utilities automation
- Pharmaceutical batch processing (21 CFR Part 11 environments)
- Food & beverage packaging line control
- Power generation and distribution switchgear control
- Mining and material handling conveyor systems
Compatible System Components
- Chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
- Power Supplies: 1756-PA72, 1756-PB72, 1756-PA75, 1756-PB75
- Controllers: 1756-L61, 1756-L62, 1756-L63, 1756-L71, 1756-L72, 1756-L73, 1756-L74, 1756-L75
- ControlNet Media: 1786-RPA, 1786-RPFRL (coax tap), 1786-TPS (fiber)
- Configuration Software: RSNetWorx for ControlNet v5.0+, Studio 5000 Logix Designer
- Related Modules: 1756-CN2R (redundant media), 1756-CNB, 1756-CNBR
Global Sourcing & Shipping Capabilities
- Stock Location: Shenzhen, China — with bonded warehouse access for cross-border efficiency
- Lead Time: In-stock units ship within 1–3 business days; sourced units within 7–14 business days
- Shipping Methods: DHL Express, FedEx International Priority, UPS Worldwide, sea freight for bulk orders
- Export Compliance: All shipments comply with Chinese export regulations and destination country import requirements
- Customs Documentation: Commercial invoice, packing list, certificate of origin, and HS code declaration provided
- Regions Served: Asia-Pacific, Middle East, Europe, North America, South America, Africa
- Bulk & OEM Orders: Volume pricing and dedicated account management available — contact us for a quote
Certifications & Compliance Statement
- UL Listed: UL 508 (Industrial Control Equipment)
- CE Marked: EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU
- cUL: Canadian Standards compliance
- RoHS: Compliant with EU Directive 2011/65/EU (Restriction of Hazardous Substances)
- ControlNet International: Conformance tested per CI specification
- Konmask Sourcing Declaration: All units are sourced from traceable supply chains. Konmask.com does not sell refurbished units as new. Condition is clearly stated on each listing.
How to Order
- Confirm Part Number & Revision: Verify that 1756-CN2/C (Series C) matches your existing system revision. Contact us if you need Series A or B compatibility guidance.
- Request a Quote: For orders of 2+ units, email [email protected] for volume pricing.
- Place Your Order: Add to cart and complete checkout. We accept T/T bank transfer, PayPal, and major credit cards.
- Receive Tracking & Documentation: Shipping confirmation with tracking number and documentation package sent within 24 hours of dispatch.
- Post-Delivery Support: Our technical team is available for installation guidance and compatibility questions after delivery.
Authenticity & Trust FAQ
Q: Is this a genuine Rockwell Automation / Allen-Bradley product?
A: Yes. All 1756-CN2/C units listed on Konmask.com are genuine OEM products. We do not sell clones, replicas, or unauthorized reproductions.
Q: How can I verify authenticity upon receipt?
A: Check the serial number on the module label against Rockwell Automation’s Product Compatibility and Download Center (PCDC). Our test report included in the shipment provides the firmware version and bench-test results.
Q: What is your return policy if the module is DOA?
A: We offer a 30-day DOA (Dead on Arrival) replacement guarantee. Contact [email protected] within 30 days of receipt with photos and test evidence.
Q: Can you provide a certificate of conformance?
A: Yes. A sourcing declaration and test certificate are available upon request for all orders. Enterprise customers may request full supply chain traceability documentation.
Q: Do you offer warranty?
A: All modules carry a 12-month Konmask warranty against manufacturing defects, in addition to any applicable Rockwell Automation warranty.
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