Communication Module Allen-Bradley 1756-CNBR
Bulk Orders & Fast Shipping
Instant 10% Discount On Winter Banks Credit/Debit Cards EMI and CreditCard
Fast & Reliable Worldwide Shipping – Ready to Dispatch from Stock
- Fast shipping
- Return Policy
- Lowest Price
- Help Center 24/7
-
Vendor:
Allen-Bradley
-
Type:
Communication Module
- Tags Communication module
About the Product
Technical Specifications for 1756-CNBR
Basic Information
Manufacturer: Rockwell Automation
Brand: Allen-Bradley
Part Number: 1756-CNBR
Module Type: ControlNet Communication Module
Weight:0.293kg
Connectivity Details
No. of Ports: Two (2) ControlNet Ports
Logix Communication Connections: 40-48
Max Connections Supported: 64
Max Number of Nodes: 99
ControlNet Rate of Communication: 5 Mbps
Electrical Specifications
Power Dissipation (Max): 5.5 Watts
Backplane Current (5.1 Volts DC): 970 milliamps
Backplane Current (24 Volts DC): 1.7 milliamps
Current Draw at 5.1 Volts DC: 970 milliamperes
Current Draw at 24 Volts DC: 1.7 milliamperes
Isolation Voltage: 30 Volts Continuous
Physical Characteristics
Dimensions: 5.51 x 4.41 x 5.71 inches
Weight: 0.64 lbs (0.293 kg)
Enclosure: Open Type
Slot Width: 1
Additional Information
Location: Chassis
Communication Cable: 1786-RG6 Quad Shield RG6 Coaxial Cable
Operating Temperature: 32-140 °F (0-60 °C)
Quick Quotes & Info
- Quick Quotes: Receive pricing and availability fast from our dedicated customer service team.
- Delivery: Expedited, freight, and international shipping available worldwide.
- Warranty: NexAuto offers a 12-month warranty on all parts purchased from us, in addition to any manufacturer coverage.
- Returns: 30-day return policy for defective or mismatched parts, ensuring peace of mind.
- Payment: Flexible options including major credit cards, PayPal, and bank transfers.
- Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.

Industrial Electrical Solutions
Comprehensive Automation Equipment for Every Facility
PLCs, HMIs, Servo Drives, Sensors, and Cables for reliable operations.
BENTLEY NEVADA
Condition Monitoring Solutions
Proximity probes, sensors, and monitoring systems to protect critical machinery.
ALLEN-BRADLEY
Industrial Automation Components
High-quality PLCs, HMIs, and I/O modules for reliable control systems.
HONEYWELL
Controllers, I/O & Interface Modules
New parts to support DCS platforms and PLC installations.
Blog posts
-
Bently Nevada 3300 XL Probes for Machinery Monitoring
Bently Nevada 3300 XL 11 mm proximity probes deliver precise vibration and position monitoring for...
-
Can the Bently Nevada 1900/65A Reduce Your Downtime Costs?
The Bently Nevada 1900/65A General Purpose Monitor is a critical tool for industrial predictive maintenance,...
-
Need Reliable Industrial Communication Cables?
Allen-Bradley 2090-Series serial communication cables provide the reliable, high-performance backbone essential for industrial automation networks....

















