Allen-Bradley 1783-BMS20CGL Stratix 5700 EtherNet/IP Managed Switch | Replacement, Equivalent & Selection Guide
The Allen-Bradley 1783-BMS20CGL is a 20-port managed EtherNet/IP switch from the Stratix 5700 series, engineered for demanding industrial automation environments. Whether you are upgrading an existing network, replacing a failed unit, or evaluating alternatives, this guide provides the technical depth and sourcing confidence you need to make the right decision.
Technical Specifications
- Part Number: 1783-BMS20CGL
- Brand / Manufacturer: Allen-Bradley (Rockwell Automation)
- Series: Stratix 5700
- Protocol: EtherNet/IP (IEEE 802.3)
- Total Ports: 20
- Port Configuration: 16 × 10/100 Base-TX copper + 4 × 100 Base-FX fiber (LC)
- Managed / Unmanaged: Managed (Layer 2)
- Switching Capacity: 4.8 Gbps
- VLAN Support: IEEE 802.1Q (up to 255 VLANs)
- QoS: IEEE 802.1p, DiffServ
- Redundancy: REP (Resilient Ethernet Protocol), RSTP (IEEE 802.1w)
- CIP Sync / PTP: IEEE 1588 v2 (hardware timestamping)
- Operating Temperature: 0 °C to +60 °C
- Power Supply: 24 VDC (18–30 VDC range)
- Power Consumption: ≤ 30 W (typical)
- Enclosure Rating: IP30 / DIN-rail mountable
- Certifications: UL, CE, cUL, ATEX Zone 2 (Class I Div 2)
- Weight: Approx. 1.7 kg
- Firmware: Cisco IOS-based (Rockwell-customized)
Compatible Replacement & Equivalent Models
When the 1783-BMS20CGL is unavailable or cost-prohibitive, the following models offer functional equivalence or direct drop-in replacement capability. Always verify firmware compatibility and port mapping before substitution.
- 1783-BMS20CGL → 1783-BMS20CA — Same 20-port configuration, copper-only variant; suitable when fiber uplinks are not required.
- 1783-BMS20CGL → 1783-BMS10CL — 10-port reduced version; use when network topology allows consolidation.
- 1783-BMS20CGL → 1783-BMS20CGP — PoE-capable variant; ideal for IP camera or wireless AP integration.
- Cisco IE 2000-16TC-G-E — OEM equivalent; shares the same Cisco IOS base; compatible with Studio 5000 Device Add-On Profiles (AOPs).
- Hirschmann MACH104-20TX-F — Third-party alternative for non-Rockwell environments; supports PROFINET and EtherNet/IP.
- Moxa EDS-518A-MM-SC — Cost-effective alternative with similar fiber/copper port mix; suitable for non-CIP Sync applications.
Note: Third-party alternatives may require additional configuration. Contact our engineering team for compatibility assessment.
Why Choose the Original Model
- Native EtherNet/IP Integration: Seamlessly integrates with Rockwell Automation Studio 5000, FactoryTalk, and RSLinx — no additional drivers required.
- CIP Sync Precision: Hardware-level IEEE 1588 v2 timestamping ensures sub-microsecond synchronization for motion control and time-sensitive applications.
- REP Redundancy: Resilient Ethernet Protocol provides sub-50 ms failover — critical for continuous process industries.
- Cisco IOS Foundation: Enterprise-grade security features (ACLs, port security, 802.1X) with industrial hardening.
- Rockwell AOP Support: Full Device Add-On Profile support for drag-and-drop configuration in Studio 5000.
- Long-Term Support: Active product lifecycle with Rockwell TechConnect support contracts available.
Typical Applications
- Automotive assembly line control networks
- Food & beverage processing with washdown-adjacent panel installations
- Oil & gas SCADA ring topologies requiring REP redundancy
- Pharmaceutical batch control systems with CIP Sync requirements
- Water/wastewater treatment plant EtherNet/IP backbones
- Discrete manufacturing cells with mixed copper/fiber infrastructure
- Machine builder OEM panels requiring compact DIN-rail switching
System Compatibility
- PLCs: Allen-Bradley ControlLogix (1756), CompactLogix (1769), GuardLogix, Micro800 series
- HMI: PanelView Plus 7, PanelView 5500, FactoryTalk View SE/ME
- Drives: PowerFlex 525, 755, 6000 series (EtherNet/IP adapter)
- Safety: GuardLogix 5580, SmartGuard 600
- Software: Studio 5000 Logix Designer v21+, FactoryTalk Network Manager, Cisco Network Assistant
- Protocols: EtherNet/IP, Modbus TCP, SNMP v1/v2c/v3, LLDP, IGMP v1/v2/v3
Selection Guide
Use the decision matrix below to identify the correct Stratix 5700 variant for your application:
- Need fiber uplinks + copper access ports? → 1783-BMS20CGL (this model) ✓
- All-copper, cost-sensitive deployment? → 1783-BMS20CA
- PoE required for IP cameras or APs? → 1783-BMS20CGP
- Smaller network (<10 nodes)? → 1783-BMS10CL or 1783-BMS06SA
- Extreme temperature environment (-40 °C)? → Stratix 5900 series
- Layer 3 routing required? → Stratix 8000 (1783-RMS series)
- Non-Rockwell PLC environment? → Consider Hirschmann MACH or Moxa EDS series
Quality Assurance & Sourcing
- Genuine Parts Only: All units sourced from authorized distributors or verified surplus channels with full traceability documentation.
- Pre-Shipment Inspection: Visual inspection, label verification, and power-on functional test performed on every unit.
- Serialization Check: Serial numbers verified against Rockwell Automation product database where applicable.
- Packaging Integrity: Original or equivalent ESD-safe packaging with anti-static bags and foam protection.
- Warranty: 12-month Konmask warranty on all shipped units; extended warranty available on request.
How to Order
- Step 1 — Confirm Part Number: Verify 1783-BMS20CGL matches your existing unit label or engineering BOM.
- Step 2 — Specify Quantity & Urgency: Standard lead time 3–7 business days; expedited same-day dispatch available for in-stock units.
- Step 3 — Request a Quote: Email [email protected] or call +0086 19859288691 with your PO or project reference.
- Step 4 — Confirm Shipping Method: DHL Express, FedEx International Priority, or sea freight for bulk orders.
- Step 5 — Receive & Verify: Inspect packaging and label upon receipt; contact us within 48 hours for any discrepancy.
Replacement & Compatibility FAQ
Q: Can I replace a 1783-BMS20CGL with a 1783-BMS20CA without reconfiguring my network?
A: In most cases yes, provided you do not use the fiber uplink ports. The copper port configuration and IOS firmware are identical. Backup and restore your running config via TFTP for a seamless swap.
Q: Is the 1783-BMS20CGL compatible with non-Rockwell PLCs?
A: Yes. The switch supports standard EtherNet/IP, Modbus TCP, and SNMP, making it compatible with Siemens, Mitsubishi, Omron, and other vendors controllers — though AOP integration is Rockwell-specific.
Q: What is the difference between 1783-BMS20CGL and 1783-BMS20CGP?
A: The CGP variant adds PoE (Power over Ethernet) on copper ports, enabling powered devices such as IP cameras and wireless access points. All other specifications are identical.
Q: Can I use a Cisco IE 2000 as a direct replacement?
A: The Cisco IE 2000-16TC-G-E shares the same IOS base and is the OEM equivalent. It is compatible with Rockwell AOPs and Studio 5000. Confirm the AOP version matches your firmware before deployment.
Q: Do you supply refurbished units?
A: We supply both new and certified-refurbished units. All refurbished units undergo full functional testing and are clearly labeled. Contact us to specify your preference.
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