A4H254-8F8T P0973JP Foxboro Managed Ethernet Switch

Foxboro P0973JP A4-Series A4H254-8F8T Managed Ethernet Switch Layer 2

Foxboro P0973JP A4-Series A4H254-8F8T Managed Ethernet Switch Layer 2

Availability: 10 left in stock

Foxboro P0973JP A4-Series Managed Ethernet Switch Configured for hybrid copper/fiber signal routing and Layer 2 network segmentation in Foxboro I/A...

SKU: P0973JP

Manufacturer: Foxboro
Product No.: P0973JP
Product Type: Managed Ethernet Switches
Product Origin: USA
Payment:T/T, Western Union
Weight: 3200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Foxboro P0973JP A4-Series Managed Ethernet Switch

Configured for hybrid copper/fiber signal routing and Layer 2 network segmentation in Foxboro I/A Series DCS platforms, the Foxboro P0973JP, also cataloged as the A4H254-8F8T P0973JP Managed Ethernet Switch, provides direct physical and electrical execution of high-speed deterministic data communication. It integrates 8 100Base-TX RJ-45 copper ports and 8 100Base-FX MT-RJ fiber optic ports alongside dedicated Gigabit uplinks to prevent data bottlenecks between field termination assemblies and control processors. The hardware incorporates industrial-grade shielding to maintain continuous packet delivery across noise-intensive automation environments.

Hardware Specifications

Parameter	Specification
Model	P0973JP
Brand	Foxboro (Schneider Electric / Invensys)
Base Model	A4H254-8F8T
Origin	USA
Weight	3.20 kg
Dimensions	44.0 x 38.0 x 4.4 cm
Operating Temp	-20 to +70 deg C
Power Consumption	45 W
Copper Ports	8 x 100Base-TX (RJ-45)
Fiber Ports	8 x 100Base-FX (MT-RJ)
Gigabit Uplink Ports	2 x 10/100/1000Base-T (RJ-45), 2 x 1000Base-X (SFP mini-GBIC)
Switching Architecture	Layer 2 Managed (VLAN segmentation, stacking support)
Isolation	Channel-to-channel isolation and galvanic protection
Mounting	Standard 19-inch rack mount / Panel baseplate
Enclosure Rating	IP20
Compliance	CE, UL, IEC 61010-1, IEC 61326 EMC

4-20 mA HART Loop Protocol & Channel Isolation

The Foxboro P0973JP integrates directly into Distributed Control System topologies handling high-density 4-20 mA HART loop protocol traffic and discrete field signals. Galvanic channel-to-channel isolation safeguards internal switching logic against common-mode voltage spikes, ground loops, and severe electrical noise generated by heavy industrial actuators or power switching equipment. Dedicated hardware filtering maintains low protocol conversion latencies, enabling steady pass-through of real-time HART diagnostics from smart field transmitters to upper-level EcoStruxure Foxboro DCS configuration and monitoring tools without degrading network throughput.

Frequently Asked Questions

Q: How does the switch protect lower-level Fieldbus Modules (FBMs) from noise propagation?

A: The device utilizes embedded galvanic isolation across its internal architecture and supports full optical isolation over its 8 100Base-FX MT-RJ fiber channels. This prevents ground loops, high-voltage surges, and electromagnetic interference from traveling between remote field enclosures and central processing units.

Q: What are the primary uplink and stacking limits for this hardware configuration?

A: The switch includes 2 dedicated 10/100/1000Base-T RJ-45 ports and 2 1000Base-X SFP mini-GBIC slots. These allow non-blocking Gigabit wire-speed aggregation to central DCS control cores and facilitate physical hardware stacking for local port expansion without introducing network latency.

Field Installation Guidelines

Mount the unit horizontally using standard 19-inch rack mount brackets or secure it onto a panel baseplate within an IP54-rated external enclosure if deployed in harsh industrial environments. Maintain a minimum vertical clearance of 50 mm above and below the chassis to ensure natural convection cooling across the internal heat sink structure.

Terminate copper connections using shielded twisted-pair (STP) Category 5e/6 cables with standard RJ-45 connectors. Ensure continuous 360-degree shield grounding at the cable glands to prevent high-frequency noise ingress. Fiber optic runs using MT-RJ connectors must maintain a minimum bend radius of 30 mm; clean all optical interfaces with lint-free isopropyl alcohol wipes prior to insertion into the 100Base-FX ports. Verify that the ambient operating temperature remains strictly between -20 deg C and +70 deg C, and connect the primary ground chassis lug directly to the main cabinet earth ground bar with a copper conductor of at least 14 AWG.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

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We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.