Allen-Bradley 1783-BMS20CGN Stratix 5700 Managed Ethernet Switch

Product Introduction

As industrial networks evolve from simple point-to-point connections to complex, data-driven ecosystems, the need for robust, managed switching infrastructure has never been greater. The Allen-Bradley 1783-BMS20CGN, part of the Stratix 5700 series, meets this demand by delivering a 20-port managed Ethernet switch designed for the toughest manufacturing environments. With support for dual power inputs, input and output alarms, and up to four fiber-ready SFP slots, this switch provides the flexibility and reliability required for modern automation systems.

Technical Specifications Breakdown

The 1783-BMS20CGN offers a total of 20 ports: 16 Fast Ethernet (FE) copper ports, 2 Gigabit Ethernet (GE) combo ports (copper or SFP), and 2 dedicated fiber SFP slots. It operates on a supply voltage of 12-24 VDC and consumes up to 30 Watts of power. The switch supports Network Address Translation (NAT), Device Level Ring (DLR), and CIP Sync, enabling seamless integration into Rockwell Automation's Integrated Architecture. Its operating temperature range of -40 to 60°C (-40 to 140°F) makes it suitable for unenclosed or harsh industrial settings.

Industry Applications

In discrete manufacturing, the 1783-BMS20CGN enables reliable communication between PLCs, HMIs, and drives on a production line. Its DLR support allows for fast network recovery in ring topologies, minimizing downtime. In process industries, the switch's wide temperature tolerance and dual power inputs ensure continuous operation in outdoor or uncontrolled environments such as oil and gas facilities or water treatment plants. The inclusion of predefined Logix tags and FactoryTalk View faceplates simplifies diagnostics and alarming, giving plant staff actionable insights.

Installation & Setup Guidance

Mount the 1783-BMS20CGN on a standard DIN rail. Ensure a minimum clearance of 2 inches around the top, bottom, and sides for adequate airflow. Connect a 12-24 VDC power supply to the dual input terminals, observing polarity. Use shielded Category 5e Ethernet cables for RJ45 ports to maintain signal integrity in noisy environments. For fiber connections, install compatible SFP modules such as the 1783-SFP100FX or 1783-SFP1GSX. The switch's open-style enclosure requires installation within a protective cabinet to prevent dust and physical damage.

Compatibility & Integration

The 1783-BMS20CGN integrates natively with Rockwell Automation's ControlLogix, CompactLogix, and MicroLogix controllers via Add-On Profiles, enabling quick configuration in Studio 5000. It supports CIP Sync for precise time synchronization across the network and NAT for simplified IP address management. The switch also works with standard industrial protocols and is compatible with Allen-Bradley's FactoryTalk View for status monitoring and alarming.

Selection Guide & Purchasing Advice

Before purchasing the 1783-BMS20CGN, verify your port count requirements: 16 FE ports, 2 GE combo ports, and 2 fiber slots. Confirm that your power supply provides 12-24 VDC and can deliver up to 3.0 A. For fiber connectivity, select appropriate SFP modules from the supported list. BluePLC Industrial offers this switch with fast shipping and expert support to help you deploy a reliable industrial network. Contact BluePLC Industrial for current lifecycle status and availability.