A2H124-24FX / P0973BJ – 24‑Port 100BASE‑FX Managed Switch Assembly for DCS/Plant Network Cabinets

Based on the model convention, A2H124-24FX typically denotes a 24‑port 100BASE‑FX industrial Ethernet switch, and the P0973BJ suffix appears to be the OEM kit or mounting/termination set that integrates the switch neatly into a DCS cabinet (often Foxboro/Schneider I/A Series layouts). From my experience, this kind of assembly is used where fiber is preferred end‑to‑end—turbine halls, compressor buildings, or long cabinet runs—so you get deterministic performance and better noise immunity than copper in mixed‑energy areas. You might notice that having the OEM kit simplifies installation: wiring lands where drawings expect it, and network commissioning is more predictable.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than 1 month at the latest
• Payment method: 50% advance payment; full payment for delivery
• Express delivery methods: FedEx, UPS, DHL

Key Features

• 24× 100BASE‑FX fiber ports – Suited for cabinet‑to‑cabinet runs where EMI is a concern and deterministic links matter.
• L2 managed feature set – Typically includes VLANs, RSTP/MSTP, IGMP snooping/querier, and port security for clean plant segmentation.
• Industrial power – 24 VDC control‑power friendly in many cases; AC variants exist depending on the kit revision.
• Cabinet‑ready hardware – P0973BJ kit usually provides the mechanical/termination details that make a like‑for‑like swap straightforward.
• Diagnostics & status – Front LEDs and basic event logging help with quick link verification during cutovers.

Technical Specifications

Specs below reflect what you commonly see in 24‑port 100FX managed switch assemblies used in DCS environments. If you share your power standard, fiber connector type, and network topology, we’ll validate the exact build before shipment.

Application Fields

• DCS/PLC plant networks standardizing on fiber between MCCs, process units, and rack rooms
• Compressor and turbine buildings where EMI and distance make 100FX a safer choice than copper
• Brownfield I/A Series cabinets needing a clean, like‑for‑like fiber switch replacement
• Safety and condition‑monitoring subnets that benefit from deterministic L2 segmentation

Advantages & Value

• Lower integration risk – OEM‑aligned kit keeps mounting and terminations familiar to maintenance crews.
• EMI resilience – 100FX fiber links typically ride clean alongside VFDs and contactor bundles.
• Serviceability – Status LEDs, common feature set, and predictable port labeling reduce commissioning time.
• Spares strategy – Stable lead times and a 365‑day warranty fit well with planned outages and hot spares.

Installation & Maintenance

• Power & bonding – Land 24 VDC on a clean supply; bond PE per cabinet standard to keep EMC in check.
• Fiber handling – Respect bend radius; clean connectors before mating; label both ends for faster fault isolation.
• Network setup – Define VLANs, RSTP, and IGMP as required; document port roles so future swaps are painless.
• Segregation – Route fiber away from high‑tension cable trays; avoid tight radii at door hinges and duct exits.
• PM routines – Check link counters, review log events, and dust filters; keep a bootable config backup on file.

Quality & Certifications

• CE and RoHS compliant build (typical for industrial Ethernet switchgear)
• Meets common industrial EMC requirements; UL/cUL suitability varies by kit revision
• Manufacturer’s warranty: 12 months from shipment

If you share your cabinet standard (power input, fiber connector type, and uplink requirements) plus the network drawing, we’ll verify the A2H124‑24FX / P0973BJ configuration and ship a kit that lands cleanly the first time.