Genuine Allen-Bradley 1757-SRM redundancy module for ControlLogix/ProcessLogix systems. Fiber-optic synchronization, 2-slot design, hot standby support, 12-month warranty.

Product Description

The 1757-SRM is a high-performance Synchronization Redundancy Module from Allen-Bradley (Rockwell Automation), designed for ControlLogix and ProcessLogix platforms. It enables controller redundancy by synchronizing primary and secondary PLC chassis via a high-speed fiber-optic link, ensuring automatic failover and uninterrupted operation in mission-critical industrial applications.

Key Features

1. Redundancy Function: Enables active/standby controller redundancy for high-availability systems
2. Fiber-Optic Sync: High-speed 1300 nm multimode fiber link (SC connector) for real-time data synchronization
3. Dual-Slot Design: Occupies 2 slots in standard ControlLogix chassis
4. Automatic Failover: Seamless switchover to secondary controller upon primary failure
5. LED Indicators: Power, Sync, and Fault LEDs for quick status monitoring
6. Hot-Swap Support: Allows replacement without system shutdown

7. Industrial-Grade: Designed for harsh environments with high noise immunity

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Part Number: 1757-SRM
• Product Type: Synchronization Redundancy Module
• Compatibility: ControlLogix 1756-L6x, ProcessLogix systems
• Interface: SC fiber-optic connector (Tx/Rx)
• Fiber Type: 62.5/125 μm multimode fiber
• Wavelength: 1300 nm
• Slot Width: 2 slots
• Backplane Current: 0.16 A @ 24V DC
• Power Dissipation: 11.28 W (max)
• Operating Temperature: 0°C ~ 60°C
• Storage Temperature: -40°C ~ 85°C
• Weight: 0.45 kg (1.0 lbs)
• Certifications: UL, CSA, CE, ATEX

• Warranty: 12 Months

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Application Scope

1. Critical Process Control: Petrochemical, power generation, water treatment
2. High-Availability Systems: Manufacturing lines, data centers, infrastructure
3. ControlLogix Redundancy: Pairing primary/secondary PLC chassis
4. Legacy System Upgrade: Replacing outdated redundancy modules

5. Fault-Tolerant Automation: Applications requiring zero downtime

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Our Advantages

1. 100% Genuine: Original Allen-Bradley modules with full factory warranty
2. In Stock: Adequate inventory for urgent orders
3. Pre-Shipment Testing: Strict quality control and functional testing
4. Technical Support: Professional guidance for installation and configuration
5. Global Delivery: Fast shipping worldwide with competitive pricing