Allen-Bradley 1756-RM2XT ControlLogix Redundancy Module
$123.00
$320.00
Description
Allen-Bradley 1756-RM2XT ControlLogix Redundancy Module
Configured for controller synchronization and failover execution in ControlLogix redundant chassis systems, the Allen-Bradley 1756-RM2XT (1756-RM2XT Redundancy Module) provides direct physical and data communication execution. The module links paired controllers through a fiber optic redundancy connection and manages chassis synchronization status.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-RM2XT |
| Brand | Allen-Bradley |
| Origin | United States |
| Module Type | ControlLogix Enhanced Redundancy Module |
| Controller Redundancy | Supports two identical controllers in redundant chassis configuration |
| Communication Link | 1 Gbps fiber optic link |
| Connector Type | LC fiber optic |
| Redundancy Cable Compatibility | 1756-RMC1, 1756-RMC3, 1756-RMC10 |
| Channels | 1 redundancy communication channel |
| Transmission Length | 4 km |
| Wavelength | 1300 nm |
| Current Draw | 4 mA @ 1.2 VDC, 1.2 A @ 5.1 VDC, 120 mA @ 24 VDC |
| Power Dissipation | 9 W |
| Thermal Dissipation | 31 BTU/hr |
| Weight | 0.64 lb |
| Dimensions | 5.51 x 4.41 x 5.71 in |
| Operating Temp | -40 deg C to +70 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Humidity | 5-95% non-condensing |
| Enclosure | Open-style, no enclosure |
| Compatible Chassis | 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 |
| Power Consumption | 9 W |
ControlLogix Redundancy Communication and Network Execution
The 1756-RM2XT operates as a ControlLogix redundancy interface module using fiber optic communication between redundant chassis. The module maintains controller synchronization data, redundancy status information, and failover coordination through the redundancy link.
The Allen-Bradley ControlLogix platform uses deterministic backplane bus communication for controller and I/O coordination. The module supports redundancy configurations requiring synchronized controller states and firmware-compatible module operation. Fiber optic communication provides electrical isolation between redundant chassis connections.
Firmware and Backplane Compatibility
The 1756-RM2XT integrates with ControlLogix redundancy architectures through compatible chassis, power supplies, and controller firmware combinations. System configuration requires matching redundancy modules, controllers, and firmware revisions within the same redundant pair.
The module provides PRI, COM, and OK LED indicators for redundancy status monitoring. Diagnostics include communication link state monitoring and synchronization condition indication.
Frequently Asked Questions
Q: What type of communication connection is used between redundant chassis?
A: The 1756-RM2XT uses an LC fiber optic connection for redundancy communication between paired ControlLogix chassis.
Q: What power loading does the module place on the chassis backplane?
A: The module requires 1.2 A at 5.1 VDC, 120 mA at 24 VDC, and 4 mA at 1.2 VDC according to the specified electrical ratings.
Q: Can the 1756-RM2XT operate outside standard temperature ranges?
A: The RM2XT version is specified for extended temperature operation from -40 deg C to +70 deg C.
Field Installation Guidelines
Install the 1756-RM2XT in a compatible ControlLogix chassis slot according to the system redundancy configuration requirements. Verify controller firmware compatibility and install matching redundancy modules in both redundant chassis.
Route fiber optic cables separately from high-voltage power conductors and maintain proper bend radius according to cable specifications. Inspect LC connectors for contamination before connection and ensure protective caps are installed during storage.
For cabinet installation, maintain grounding continuity between chassis components and use appropriate cable segregation practices. Verify LED status indicators after power-up to confirm redundancy communication and synchronization states.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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