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Includes a PDF Electric and Supply warranty.

Other Available Revisions for the 1756-RMXT 1756-RMXT/A

Common misspellings:
  • l756-RMXT
  • 1756RMXT

Technical Specifications for 1756-RMXT

ManufacturerAllen-Bradley / Rockwell Automation
Part Number1756-RMXT
Product TypeRedundant Module
Operating Temperature-25 to 70 degrees Celsius
Connector TypeLC-Type (Fiber-Optic
Cable Type8.5/125 Micron Single-Mode Fiber-Optic Cable
Channels1 (Transmit and Receive Fiber)
Length4 km (4000 m, 4,374.45 yd)
TransmissionLess Than or Equal to 100 Mbps

The 1756-RMXT is an Allen Bradley Fiber Optic Cable with Extended Temperature and a length of 4 kilometers. The 1756-RMXT has a wavelength of 1300 Newton Meters and the transmission speed is less than 1000 Megabytes per second. The 1756-RMXT comes with one single channel and has an endurance of operating temperature at 32 to 140 degrees Fahrenheit, which is equivalent to 0 to 60 degrees Celsius. The 1756-RMXT has an open enclosure with a wire size of 20 AWG. The shipping dimensions for the 1756-RMXT are 5.51 x 4.41 x 5.71 inches and can be located on any slot of the chassis.

The 1756-RMXT works in pairs with one 1756-RMXT module on each chassis and functions to control the operating states and the state transitions. It comes with redundant fiber ports for cross loading, and hence offers no single point of failure of a fiber cable. The high redundancy enables the cable to support as many as seven enhanced communication modules for any type or combination on each of the chassis. For the best scan performance experience, it is advisable that the 1756-RMXT is used with the 1756-L7X controllers fitted on both chassis. In addition, while using the 1756-RMXT use the redundant module configuration tool to carry out commissioning for redundancy. The 1756-RMXT comes with a required firmware revision of 3.004.

The 1756-RMXT ControlLogix-XT redundancy module has been designed by Allen-Bradley and it is regularly used in redundancy systems. To use this redundancy module, it is recommended that it be used in applications that have an engineering workstation. Some of the tasks that can be performed by this module are the auto-synchronization of parameters, diagnostics, determining the qualification and compatibility status of partnered modules, and the identification of non-compliant modules so that they can be removed. Before attempting to install the Allen-Bradley 1756-RMXT ControlLogix-XT redundancy module, the users need to verify that the modules for each redundant chassis are identical and compatible. The redundancy firmware revision needs to be fully compatible with the redundant chassis module that is going to be installed for this application.

The Allen-Bradley 1756-RMXT ControlLogix-XT redundancy module has been designed to operate at higher temperatures  than regular redundancy modules can handle. The operating temperature range for this module is -25 to 70 degrees Celsius. This temperature must not be exceeded unless there is proper ventilation equipment near the module. The Allen-Bradley 1756-RMXT ControlLogix-XT redundancy module comes with an LC type of fiber-optic connector and a single-mode fiber-optic cable. It can be connected to up to 4 kilometers of cable without affecting operations. The transmission of data for this model is less than or equal to 100 megabytes per second and it has a wavelength of 1300 NM. This module does not come with an SFP transceiver. Another important physical feature of the module is that it comes with several status indicators. 

The Allen-Bradley 1756-RMXT ControlLogix-XT redundancy module has been designed specially to resist high temperatures during operations. It can operate at up to 70 degrees Celsius.

F.A.Q for 1756-RMXT

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