Moxa ES-1026 24-Port Industrial Ethernet Switch

Technical Dossier

Product Details And Specifications

MOXA ES-1000 Series Technical Notes

The MOXA ES-1000 series represents one of the most widely deployed families of unmanaged industrial Ethernet switches in global heavy industry. Installed across petrochemical complexes, nuclear power facilities, offshore oil platforms, and continuous-process refineries, the ES-1000 series established MOXA's position as a tier-one supplier for deterministic, ruggedized network infrastructure. These switches operate across extended temperature ranges (-10°C to 60°C standard; -40°C to 75°C for EX variants), comply with IEC 61850-3 substation automation requirements, and are certified for use in Class I Division 2 hazardous locations. The ES-1026, a 24-port Fast Ethernet unmanaged switch, remains one of the highest-volume SKUs in this series, found in legacy DCS backbone networks where port density and passive cooling are primary design constraints.

The Evolution of ES-1000 Architecture

The ES-1000 series was introduced in the early 2000s as MOXA's response to demand for DIN-rail-mountable, fanless Ethernet switches capable of surviving industrial EMI environments. The original architecture used store-and-forward switching with a non-blocking backplane rated at 4.8 Gbps for 24-port configurations. Early revisions (ES-1024, ES-1026) were strictly unmanaged, offering no SNMP, VLAN, or QoS capability — a deliberate design choice for deterministic latency in SCADA polling cycles.

Subsequent generations introduced the EX suffix (e.g., ES-1026-EX) for extended temperature operation, and the PT suffix variants were repositioned under the PT-7000 and EDS series for managed functionality. Compatibility between ES-1000 hardware revisions is generally maintained at the physical layer (same DIN-rail footprint, same 24VDC power input range), but firmware is not applicable — these are hardware-only unmanaged devices. Sites migrating from ES-1000 to EDS-400 or EDS-500 series must account for the shift from unmanaged to managed topology and the associated reconfiguration of upstream SCADA polling.

ES-1000 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified production and end-of-life catalog for the MOXA ES-1000 series. All models are unmanaged Fast Ethernet switches unless otherwise noted.

ES-1008: 8-port 10/100BaseT unmanaged industrial Ethernet switch, DIN-rail mount, 24VDC input.
ES-1008-EX: 8-port variant with extended operating temperature range (-40°C to 75°C), for outdoor enclosures.
ES-1016: 16-port 10/100BaseT unmanaged switch, non-blocking architecture, 1.6 Gbps backplane.
ES-1016-EX: 16-port extended-temperature variant, conformal coating available on request.
ES-1024: 24-port 10/100BaseT unmanaged switch, predecessor to ES-1026, identical port count with earlier PCB revision.
ES-1026: 24-port 10/100BaseT unmanaged industrial Ethernet switch; primary SKU of this listing; 4.8 Gbps backplane, fanless, DIN-rail, 12–48VDC input range.
ES-1026-EX: 24-port extended-temperature variant of ES-1026, rated -40°C to 75°C, for arctic or desert deployment.
ES-1028: 24-port + 4-port combo (24×RJ45 + 4×SFP) unmanaged switch; adds fiber uplink capability to ES-1000 topology.
ES-1028-EX: Extended-temperature version of ES-1028 with SFP fiber uplinks.
ES-1032: 32-port 10/100BaseT unmanaged switch for high-density panel wiring in large DCS marshalling cabinets.
ES-1032-EX: 32-port extended-temperature variant.
ES-1008-M-SC: 7-port 10/100BaseT + 1-port 100BaseFX (SC connector) multimode fiber combo switch.
ES-1008-M-ST: 7-port 10/100BaseT + 1-port 100BaseFX (ST connector) multimode fiber combo switch.
ES-1008-S-SC: 7-port 10/100BaseT + 1-port 100BaseFX single-mode fiber (SC), for long-distance inter-panel runs.
ES-1008-S-SC-T: Single-mode SC fiber variant with extended temperature rating (-40°C to 75°C).
ES-1016-M-SC: 15-port 10/100BaseT + 1-port 100BaseFX multimode fiber combo, 16-port total density.
ES-1016-S-SC: 15-port copper + 1-port single-mode fiber, for inter-building backbone in refinery networks.
ES-1026-M-SC: 24-port copper + 2-port 100BaseFX multimode fiber uplink variant of ES-1026.
ES-1026-S-SC: 24-port copper + 2-port single-mode fiber uplink, maximum segment distance 40 km.

Sourcing Hard-to-Find & Obsolete ES-1000 Parts

MOXA officially discontinued the ES-1000 series and transitioned customers to the EDS-400A and EDS-500A managed switch families. However, the installed base of ES-1000 hardware in operating chemical plants, power substations, and water treatment facilities remains substantial. Plant operators face a documented constraint: replacing an unmanaged ES-1000 switch with a managed EDS-series device requires network topology review, SCADA polling reconfiguration, and in some jurisdictions, a formal process safety management (PSM) change-of-control review. The operational cost of this migration frequently exceeds the cost of sourcing a like-for-like ES-1000 replacement.