Product Details
The Foxboro P0973JN A4H124-24FX, also cataloged as the A4H124-24FX Ethernet Switch, operates as a dedicated hardware component for high-throughput packet routing and optical fiber data distribution within industrial control network environments. Built with a 24-port fiber management architecture, it processes 100Base-FX transmissions alongside dual Gigabit SFP links to maintain deterministic data flow across distributed automation nodes.
Suffix Breakdown & Model Matrix
- P0973JN: Foxboro specific system catalog and hardware identification suffix defining proprietary assembly, mounting adaptation, and logistics tracking.
- A4H124-24FX: Original OEM platform designation representing the 24-port fiber optic switch core configuration.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | P0973JN (A4H124-24FX) |
| Brand | Foxboro / Extreme Networks |
| Origin | Consult Factory |
| Weight | Standard Industrial Rackmount Chassis Class |
| Dimensions | Standard 19-inch 1U Rackmount Form Factor |
| Operating Temp | 0 deg C to 50 deg C |
| Power Consumption | Standard AC/DC Internal Redundant Power Rails |
| Number of Ports | 24 ports for 100Base-FX and 2 Gigabit SFP ports |
| Throughput | 9.5 Mpps |
| Switching Capacity | 12.8 Gbps |
| VLAN Capacity | Up to 4096 VLANs |
| MAC Address Table Size | 16K entries |
4-20 mA HART Loop Protocol and Isolation
The integration of industrial networking modules into distributed control architecture mandates rigorous signal segregation and data integrity safeguards. Although operating primarily within the Ethernet and optical domain, this switch ensures proper isolation between high-speed packet exchanges and sensitive analog signal infrastructures such as 4-20 mA HART loop protocol loops residing on adjacent termination assemblies. Channel-to-channel isolation and galvanic protection profiles prevent electromagnetic interference from bridging Ethernet backbones and field-level measurement loops.
Frequently Asked Questions
Q: Does the P0973JN switch support redundant power supply configurations during active operation?
A: Yes, it supports dual power inputs to ensure uninterrupted switching operations under standard industrial cabinet power failure scenarios.
Q: How does the switch handle packet forwarding under maximum traffic loads?
A: It delivers a switching capacity of 12.8 Gbps with a packet forwarding rate of 9.5 Mpps, maintaining line-rate processing across all 24 fiber ports and dual Gigabit SFP uplinks.
Q: Are optical transceiver modules hot-swappable on the Gigabit SFP ports?
A: Yes, the dual Gigabit SFP slots support hot-swapping of compatible optical transceivers without requiring a full system reboot.
Field Installation Guidelines
Mount the switch securely within a standard 19-inch industrial equipment rack, ensuring adequate front and rear clearance for airflow and thermal dissipation. Verify that optical fiber connectors are cleaned thoroughly with approved isopropyl alcohol wipes prior to insertion into the SFP transceiver ports to prevent signal attenuation. Ground the chassis directly to the cabinet grounding bus bar using a low-impedance copper conductor before energizing the power supplies.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Demystifying the DDE Protocol in Legacy Industrial Automation Systems
Modern control systems rely heavily on seamless interprocess communication to exchange operational data between software programs. Microsoft first introduced the Dynamic Data Exchange (DDE) protocol in 1987 to enable real-time data sharing. In factory automation, DDE served as an early bridge between control software and Windows desktop applications. Therefore, understanding DDE mechanics provides crucial insights into how legacy industrial networks established software-level connectivity.
Demystifying CPU Communication Ports in Siemens PLC Architectures
Industrial automation relies heavily on robust data exchange between devices. Without seamless connectivity, field instruments, network switches, human-machine interfaces, and programmable logic controllers cannot coordinate effectively. Therefore, understanding the various CPU communication ports available in Siemens hardware ensures efficient factory automation design and seamless system integration.
Mastering the Siemens PLC Scan Cycle: How the CPU Executes Automation Programs
Industrial automation relies heavily on programmable logic controllers (PLCs) to manage complex manufacturing processes. Many engineers dive straight into programming without mastering the underlying architecture. However, understanding how a PLC CPU executes a program ensures reliable system design. Therefore, mastering the scan cycle optimizes both performance and troubleshooting in modern control systems.