P0973KJ Foxboro C‑Series 26 SFP Port Modular Gigabit Managed Switch for I/A & Evo DCS Control Network
P0973KJ Foxboro C‑Series 26 SFP Port Modular Gigabit Managed Switch for I/A & Evo DCS Control Network - Image 2
P0973KJ Foxboro C‑Series 26 SFP Port Modular Gigabit Managed Switch for I/A & Evo DCS Control Network - Image 3

P0973KJ Foxboro C‑Series 26 SFP Port Modular Gigabit Managed Switch for I/A & Evo DCS Control Network

  1. P0973KJ – C‑Series C5 26×SFP gigabit managed switch (Target Model)
  2. A4H124‑24FX P0973JN – A4 24-port fixed MT-RJ fiber switch
  3. P0973LQ – A4 modular copper switch card
  4. P0973JQ – A4 modular mixed copper/fiber switch card
  5. H929049B0500 – I/A Series ACP controller CPU module
  6. FEM100 P0973CA – FCP270 fieldbus expansion module
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Description

P0973KJ Foxboro C‑Series 26 SFP Port Modular Gigabit Managed Switch for I/A & Evo DCS Control Network

 

Product Application

P0973KJ belongs to Foxboro C‑Series (C5) switch family, different from A4 series (P0973JN / P0973LN / P0973JQ / P0973LQ). It is a high‑density all‑SFP modular managed switch designed for Foxboro I/A and Foxboro Evo DCS control network. 26 SFP slots support flexible insertion of SFP transceivers: 100Base‑FX fiber for FBM field nodes or 1000Base‑X gigabit fiber for inter‑rack / inter‑control‑room uplink. It builds high‑speed redundant fiber backbone connecting FCP/ACP controllers, communication modules and H90 workstations. Widely used in large petrochemical, refinery, chemical and power plant DCS projects requiring massive fiber connections. It supports ring/star redundant topology, RSTP, SNMP monitoring to guarantee low latency real‑time process control data transmission.

P0973KJ

Product Specifications

  • Part Number: P0973KJ
  • Manufacturer: Foxboro (Schneider Electric, Invensys legacy)
  • Product Type: C‑Series C5 1U rackmount Layer 2 managed gigabit switch
  • Port Configuration: 26 × SFP modular slots
    • Support 100Base‑FX (P0973JE transceiver) for 100M fiber end nodes
    • Support 1000Base‑SX / LX gigabit SFP for long distance uplink
  • Switching Capacity: High performance wire-speed switching fabric
  • MAC Address Table: 16K MAC entries
  • Jumbo Frame: Up to 9216 bytes
  • Management: Console port, Web, SSH, SNMP v2 / RMON remote monitoring
  • Supported Protocol: IEEE802.1Q VLAN, QoS, LACP link aggregation, RSTP Rapid Spanning Tree, Port Mirroring
  • Power Supply: Dual hot‑swap redundant AC power supply 100‑240VAC, 50/60Hz auto range
  • Max Power Consumption: 29 W
  • Operating Temperature: -40 ℃ ~ +70 ℃ industrial wide temperature
  • Humidity: 5% ~ 95% RH, non‑condensing
  • Vibration & Shock: IEC 68‑2‑6 / IEC 68‑2‑29 industrial standard
  • Certification: CE, UL, FCC, RoHS
  • Product Status: Spare replacement high density fiber switch for legacy I/A & Evo DCS large fiber network projects
  • Approx. Weight: 3.2 kg

 

Core Technical Parameters

  • Fully modular SFP design: User selects SFP transceivers freely, mix 100M FX and 1G SX/LX ports in one switch
  • Redundant hot‑swap PSU: Single power module failure will not interrupt DCS fiber network
  • Port mirroring for packet capture and network fault diagnosis
  • Native Foxboro DCS validated, port / power fault alarms can be uploaded to DCS HMI workstation
  • High port density, suitable for central control room backbone aggregation of large DCS system
  • Full electrical isolation via optical fiber, eliminates ground loop interference between different cabinets

 

Recommended Matching Spare Parts & Accessories (8 Items)

  1. Hot‑swap redundant AC power supply module for C5 P0973KJ
  2. SFP transceiver P0973JE (100Base‑FX multi‑mode)
  3. Gigabit SFP SX / LX transceivers for long distance uplink
  4. Console serial configuration cable
  5. OM3 multi‑mode / OS2 single‑mode fiber patch cord (LC)
  6. 19‑inch rack mounting bracket kit
  7. UPS uninterruptible power supply for switch cabinet
  8. Foxboro DCS network management configuration tool

 

Product Features

✅ 26 All-SFP Modular Slots Flexible port configuration, freely mix 100M fiber for field I/O nodes and gigabit fiber for backbone uplink, adapt to large DCS fiber aggregation requirements.

✅ Dual Hot‑Swap Redundant Power Supply Dual power slot design, single PSU fault does not break DCS fiber communication, high availability for safety critical process control.

✅ Complete Layer‑2 Managed Functions VLAN partition, QoS priority scheduling, RSTP anti-loop, link aggregation, port mirroring, SNMP remote monitoring for easy DCS network operation and troubleshooting.

✅ Industrial Wide Temperature Grade -40~+70℃ working range, strong EMC and anti-vibration performance for harsh control cabinet environment.

✅ Foxboro I/A & Evo DCS Official Validation Optimized for Foxboro control network, guarantees low latency and stable real-time transmission of DCS control messages.

✅ Fiber Electrical Isolation All ports run via optical transceivers, effectively block ground loop noise between different cabinets in large plant.

✅ Network Fault Alarm Upload Port link loss, SFP missing, power module failure alarms can be sent to DCS operator HMI for real-time network health monitoring.

 

Installation Guidelines

  1. Mount P0973KJ C5 switch into standard 19‑inch control cabinet with rack bracket.
  2. Install dual hot‑swap power modules and connect them to two independent UPS power circuits for power redundancy.
  3. Insert corresponding SFP transceivers (P0973JE for 100M FX, SX/LX for gigabit uplink) into SFP slots.
  4. Connect fiber patch cords from controllers, FBM communication modules and remote cabinets to SFP ports.
  5. Connect console cable to notebook PC to finish initial IP, VLAN and spanning‑tree configuration.
  6. Enable SNMP function to upload network status alarm to DCS HMI.
  7. Perform single power supply failure test and fiber link redundancy test, confirm all DCS network communication keeps normal.
  8. Mark each fiber port wiring label for later maintenance.

 

Maintenance Instructions

Daily Maintenance Check switch power indicator and SFP port link LED on site. Monitor network fault alarm on DCS HMI. Inspect cabinet ventilation and temperature.

Periodic Maintenance (Every 6–12 months) Clean dust of switch air inlet. Inspect LC fiber connector cleanliness and fiber bending radius. Backup switch configuration file. Upgrade firmware if Foxboro official recommendation released.

Fault Maintenance

  • Single power alarm: Replace defective hot‑swap power module without powering down switch.
  • SFP port link down: Clean fiber end face, swap SFP transceiver or change spare port and modify network configuration.
  • Network communication delay / storm: Enable port mirroring to capture packets and locate abnormal DCS node.
  • Do not modify VLAN and spanning‑tree parameters arbitrarily without DCS network engineer authorization.

Long‑Term Operation Tips Keep cabinet temperature within operating range. Backup switch configuration file off‑site. Stock spare power modules and SFP transceivers for emergency replacement.

 

Brand Same‑Series Models (6 Models)

  1. P0973KJ – C‑Series C5 26×SFP gigabit managed switch (Target Model)
  2. A4H124‑24FX P0973JN – A4 24-port fixed MT-RJ fiber switch
  3. P0973LQ – A4 modular copper switch card
  4. P0973JQ – A4 modular mixed copper/fiber switch card
  5. H929049B0500 – I/A Series ACP controller CPU module
  6. FEM100 P0973CA – FCP270 fieldbus expansion module

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