1757-SRM/B

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Overview of Allen-Bradley 1757-SRM-B System Redundancy Module

The Allen-Bradley 1757-SRM-B is a system redundancy module used in ControlLogix and ProcessLogix systems to provide seamless failover between primary and secondary controllers. This module ensures high availability and continuous operation in critical industrial applications by enabling hot-swappable redundancy with automatic switching during controller failure.

Key Features

  • Enables redundant ControlLogix controller configurations for high system availability
  • Supports automatic failover with failover time typically ≤ 50 milliseconds
  • Supports hot-swapping for minimal system downtime during maintenance
  • Diagnostics include LED indicators for primary and secondary controller status
  • Backplane current: 0.160 A at 24 V DC
  • Power dissipation: 11.28 W max
  • Thermal dissipation: 38.49 BTU/hr max
  • Connector: SC type fiber-optic cable for communication between redundant modules
  • Operating temperature range: 0 to 60 °C (32 to 140 °F)
  • Open-style enclosure designed to mount in ControlLogix chassis (2 slots)
  • Compatible cable types: 62.5/125-micron multi-mode fiber optic

Technical Specifications

Model 1757-SRM-B
Module Type System Redundancy Module
Backplane Current 0.160 A at 24 V DC
Power Dissipation 11.28 W max
Thermal Dissipation 38.49 BTU/hr max
Connector Type SC multi-mode fiber optic (62.5/125 μm)
Communication Channels 1 transmit and receive fiber channel
Operating Temperature 0 to 60 °C (32 to 140 °F)
Dimensions (HxWxD) 145 x 35 x 142 mm (5.71 x 2.76 x 5.51 in.)
Weight 0.452 kg (14.53 oz)
Mounting ControlLogix chassis (2 slots)

Applications

The 1757-SRM-B redundancy module is essential in industrial automation environments requiring continuous operation and fault tolerance. It is commonly used in process control, manufacturing, and other mission-critical systems where controller redundancy enhances system reliability and minimizes downtime.

1757-SRM/B

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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