Foxboro P0973JN 24-Port Fiber Managed Ethernet Switch – Product Description

Overview

The Foxboro P0973JN, also known as A4H124‑24FX, is a high-performance industrial Ethernet switch designed for Foxboro I/A Series distributed control systems. It delivers reliable, long-distance fiber connectivity and high-speed data transfer, enabling seamless communication between controllers, I/O modules, and operator stations. Moreover, its robust design provides excellent EMI resistance and ensures continuous operation in demanding industrial environments. This switch is ideal for applications where uptime, network stability, and scalability are critical.

Technical Specifications

• Model: P0973JN (A4H124‑24FX)

• Type: Managed Industrial Ethernet Switch

• System Compatibility: Foxboro I/A Series DCS

• Fiber Ports: 24 × 100Base‑FX (MT-RJ)

• Gigabit Uplink Ports: 2 × SFP for copper/fiber

• Stacking: Up to 8 switches, closed-loop or daisy-chain

• Redundancy Protocols: STP, RSTP, MSTP

• Management Interfaces: Telnet, WebView (HTTP), NetSight, DB9 console CLI

• Security Features: VLAN isolation, ACLs, LACP, STP protection

• Power Supply: Internal PSU + external redundant PSU (STK‑RPS‑150PS, RPSM‑P0973BP)

• Operating Temperature: –40 °C to +70 °C

• Storage Temperature: –40 °C to +85 °C

• Humidity Range: 5% – 95% non-condensing

• Weight: 11.0 lbs

• Certifications: CE, UL, FCC, RoHS

• Application Areas: Oil & gas, chemical plants, refining, power generation, pulp & paper, water treatment

FAQ

Q1: How many fiber ports does the P0973JN include?
It includes 24 fiber ports (100Base‑FX, MT-RJ) and 2 Gigabit SFP uplinks.

Q2: Can the switch be stacked for larger networks?
Yes, up to 8 switches can be stacked, sharing a single IP address for management.

Q3: Does it support network redundancy?
Yes, it supports STP, RSTP, and MSTP redundancy protocols.

Q4: Which management interfaces are available?
Telnet, WebView (HTTP), NetSight software, and DB9 console CLI are supported.

Q5: Is it suitable for harsh industrial environments?
Yes, the switch operates from –40 °C to +70 °C and features strong EMI resistance.