Allen-Bradley 1783-BMS20CL Stratix 5700 Managed Ethernet Switch

Product Overview

The Allen-Bradley 1783-BMS20CL serves as a high-density, Layer 2 managed switch within the Stratix 5700 ecosystem. This 20-port industrial switch bridges the gap between machine-level devices and the enterprise network by utilizing Cisco IOS technology. It provides advanced switching, security, and diagnostic capabilities tailored specifically for EtherNet/IP applications. We offer this unit as 100% Brand New and Factory Original, ensuring your industrial network benefits from peak hardware integrity and the full manufacturer lifecycle.

Technical Specifications

The 1783-BMS20CL utilizes a robust hardware architecture to support extensive localized I/O and high-bandwidth uplinks.

Engineering Advantages

• Optimized High-Density Connectivity: The 16 copper Fast Ethernet ports allow for the consolidation of entire machine cells into a single switch. This reduces the need for multiple daisy-chained switches, simplifying network topology and reducing latency for time-critical motion control.

• Resilient Combo Port Flexibility: Two Gigabit combo ports support either standard copper RJ45 connections or SFP-based fiber optics. This flexibility enables high-speed backbone links across long distances while maintaining immunity to electromagnetic interference (EMI).

• Extreme Thermal Performance: The switch operates reliably in temperatures ranging from -40°C to 60°C. This wide operating range eliminates the need for expensive cabinet cooling or heating units in unconditioned outdoor or factory environments.

• Simplified Hardware Diagnostics: An integrated alarm relay provides immediate hardware-level notification for power loss or port failure. Engineers can wire this relay directly to a PLC input to trigger HMI alarms, ensuring instant visibility into network health.

FAQs

• What type of wiring is required for the DC power connection?

  Use 0.5…0.8 $mm^2$ (20…18 AWG) copper wire rated at 75°C (167°F) or higher. Ensure the insulation does not exceed 1.2 mm and strip the wire to exactly 6.3 mm (0.25 in.) to maintain secure terminal contact.

• Does this switch support Device Level Ring (DLR)?

  The "CL" (Lite) version of the Stratix 5700 typically supports basic management features. Always verify your specific firmware revision in Studio 5000 to confirm if DLR "Supervisor" or "Beacon" mode is active for your redundancy requirements.

• How should I ground the 1783-BMS20CL to prevent electrical noise?

  Connect a minimum 4.0 $mm^2$ (12 AWG) stranded copper wire to the ground lug. This path ensures proper dissipation of surge energy and protects internal logic from static discharge and grounding loops.

• Can I use third-party SFP modules in the combo ports?

  While the switch follows standard SFP protocols, we recommend Allen-Bradley 1783-SFP modules. Using original modules ensures full compatibility with the Cisco-based diagnostic tools and prevents port-rejection errors during bootup.