A-B 1756-CN2R Communication module

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A-B 1756-CN2R

The Allen-Bradley 1756-CN2R is a communication module designed for ControlLogix controllers. It is mainly used to establish the ControlNet network in the ControlLogix system to achieve communication and data exchange between multiple devices. The module has the characteristics of high reliability, high bandwidth and flexible configuration, and is widely used in industrial automation field.

Product parameters and specifications
Interface type:
Two ControlNet BNC ports: Used to connect the ControlNet network
1 USB 1.1 port: for communication and configuration with other devices
Transmission rate:
ControlNet: 5 Mbps


USB: 12 Mbps
Isolation voltage: 30V DC
Operating temperature: T4 IEC temperature code and T4A North American temperature code


Power supply: 5.1V DC or 24V DC
Power consumption: 6.6W
Other features:
Supports redundant configuration

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