Description
Allen‑Bradley 1756-RM2 Product Description
Technical Specifications
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Product Model: 1756-RM2
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Brand: Allen‑Bradley (Rockwell Automation)
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Warranty: One Year
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Input Voltage: 5.1 V DC / 24 V DC dual power input; 1.16A @ 5.1VDC, 3.4mA @ 24VDC
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Operating Temperature: 0°C to 60°C (32°F to 140°F)
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Storage Temperature: -40°C to 85°C (-40°F to 185°F)
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Response Time: Microsecond-level ultra-fast redundant system failover response
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Protection Class: IP20 industrial rack module protection rating
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Accuracy Class: Zero data loss synchronization accuracy for redundant controller pairing
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Output Frequency: 1000 Mbps high-speed fiber synchronization frequency
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Rated Current Range: Standard backplane load current with stable low-power operation
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Communication Interface: Dual fiber-optic synchronization ports, ControlLogix backplane interface
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Supported Protocols: EtherNet/IP, ControlNet industrial redundant synchronization protocols
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Overload Capacity: Built-in overcurrent protection, transient surge suppression and fault self-diagnosis
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Dimensions: Standard 1756 ControlLogix series rack-mount compact form factor
Product Overview
The 1756-RM2 is an enhanced redundancy module designed for Allen‑Bradley ControlLogix 5570 and 5580 series PLC systems, dedicated to high-reliability industrial control redundancy configuration. This fiber-based synchronization module establishes stable high-speed data interaction between primary and standby controllers, supporting seamless hot-standby failover without program interruption or data loss. It effectively resolves critical industrial pain points including controller failure downtime, asynchronous redundant data, and unstable system switching. Equipped with dual fiber channels and 1Gbps ultra-fast synchronization speed, it ensures real-time data consistency for paired redundant chassis. Featuring hot-swappable design and comprehensive LED fault diagnosis, it simplifies on-site maintenance while providing reliable electrical protection. Widely deployed in power, chemical, and critical process industries, it delivers uninterrupted system operation for automation integrators and plant maintenance teams.
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