Description
The Allen-Bradley 1783-BMS10CL is a managed industrial Ethernet switch from the Stratix 5700 family, manufactured by Rockwell Automation. It is a 10-port Layer 2 managed switch running the Lite firmware feature set on Cisco IOS-XE, designed to provide organized, deterministic EtherNet/IP communication for standalone machine cells, discrete manufacturing lines, and process skids where gigabit throughput is not required but network resilience and manageability are essential.
The switch provides eight 10/100 Mbps RJ45 copper ports plus two 10/100 Mbps combo ports (RJ45 or Mini-GBIC/SFP fiber), accepting a wide 12–48V DC input range with dual removable terminal-block power connections for redundancy. Housed in a compact IP30 open-style metal enclosure measuring 91.4 × 129.5 × 116.7 mm and weighing 1.25 kg, the 1783-BMS10CL mounts directly onto a 35mm DIN rail and draws a maximum of 17W. It supports Device Level Ring (DLR), STP/RSTP/MST, IGMP snooping, VLAN, QoS, port mirroring, and DHCP persistence—delivering enterprise-grade Cisco manageability in an industrially hardened form factor. Note that the 1783-BMS10CL was officially discontinued effective September 1, 2024; Rockwell Automation’s recommended engineering replacement is the 1783-CMS10B.
Application Scenarios
Consider a packaging machine cell where a CompactLogix controller, a PanelView Plus HMI, two Kinetix servo drives, and a remote I/O rack must exchange EtherNet/IP implicit I/O data continuously. A single cable cut—from a technician’s tool cart or a forklift—should never stop production. The Allen-Bradley 1783-BMS10CL makes that possible by supporting Device Level Ring topology: the devices connect in a ring rather than a linear daisy chain, and when a cable fails, the ring heals in milliseconds. The Lite firmware’s DLR support, combined with IGMP snooping that prevents multicast I/O traffic from flooding the network, means the servo drives receive their coordination data without CPU overload.
In a water and wastewater treatment plant, the 1783-BMS10CL serves a different but equally valuable role. Here, the two combo ports accept 100Base-FX SFP optical transceivers, creating a long-distance, noise-immune fiber link between the control room and a remote pump station across the plant grounds. The fiber path is immune to the electromagnetic surges generated by large motor starters and VFDs—the very noise that corrupts copper links in such environments. Meanwhile, the integrated alarm relay (rated 1A at 30V DC) is wired directly to a PLC input, so the control system receives instant notification if the switch loses its primary power feed. For the plant’s instrumentation technician, this means a network fault generates a control-system alarm with a timestamp, not a vague complaint from an operator that “the screens are slow.”
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | Allen-Bradley 1783-BMS10CL (Stratix 5700, Lite firmware) |
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Product Category | Managed Industrial Ethernet Switch (Layer 2, Lite firmware) |
| Total Ports | 10 — 8 × 10/100 Mbps RJ45 copper + 2 × 10/100 Mbps combo (RJ45 or Mini-GBIC/SFP) |
| Switching Capacity | 20 Gbps non-blocking backplane — handles concurrent traffic without contention |
| Firmware Feature Set | Lite (Layer 2 only) — no Layer 3 routing, no 802.1X, no ACL/encryption (unlike -CA Full version) |
| Supported Protocols / Features | EtherNet/IP, Device Level Ring (DLR), STP/RSTP/MST, IGMP Snooping & Query, VLAN, QoS, Port Mirroring, DHCP Server with per-port persistence, SNMP, Syslog, Port Threshold (storm control), Cable Diagnostics |
| Power Input | 12–48V DC, Class 2/SELV, 0.5A (max input current varies by voltage); dual removable terminal blocks for redundancy |
| Power Consumption / Dissipation | 12.5W at 24V DC, 40°C; 17W maximum |
| Configuration Storage | 1784-SD1 memory card — complete configuration backup and restore (card not included) |
| Configuration Interfaces | Web UI, CLI (Cisco IOS), Studio 5000 Logix Designer AOP, Cisco Network Assistant |
| Isolation Voltage | 50V DC continuous (basic insulation) between DC power ports, Ethernet ports, and alarm ports |
| Alarm Relay | 1 relay: 30V DC @ 1A, 48V DC @ 0.5A — reports power loss and critical hardware faults to PLC |
| Dimensions (W×H×D) | 91.4 × 129.5 × 116.7 mm (3.6 × 5.1 × 4.6 in.) |
| Weight | 1.25 kg (2.75 lb) |
| Mounting | 35mm DIN rail (top hat rail), panel mount optional |
| Protection Rating | IP30 open-style enclosure — finger-safe, for cabinet installation |
| Operating Temperature | -40°C to +60°C (-40°F to 140°F) — wide industrial temperature range |
| Humidity | 5–95% non-condensing |
| Vibration / Shock | 2G @ 10–500 Hz; 30G operating / 55G non-operating (IEC 60068-2-27) |
| EMC / Immunity | ESD 15 kV air / 8 kV contact; EFT ±2 kV (100 kHz) / ±4 kV (5 kHz); Surge ±2 kV line-earth; CISPR 11 Class A emissions; Conducted RF 10V (150 kHz–80 MHz) |
| Ethernet Cable Requirement | RJ45 per IEC 60603-7, Cat 5e minimum (TIA 568-B.1) or Cat 5 (ISO/IEC 24702); max 100m per copper segment |
| Wire Size | DC power: 0.5 mm² solid/stranded copper, 75°C rated; Alarm: 0.5 mm² twisted-pair; Ground: min. 4 mm² stranded copper |
| Terminal Torque | Ground: 0.96 N·m max; Power & alarm: 0.23 N·m; strip length 6.3 ± 0.5 mm |
| Certifications | UL Listed, CE, c-UL, RoHS; Standards: IEEE 802.3, 802.1D, 802.1Q, EN 61131-2 |
| Lifecycle Status | Discontinued effective September 1, 2024; engineering replacement: 1783-CMS10B |
| Warranty | 1 year standard |
