Foxboro P0973LN SSA-T8028-0652 | Industrial Control Network Chassis Managed Switch

Description

Key Technical Specifications

Product Introduction

Foxboro SSA-T8028-0652 P0973LN Overview

The Foxboro SSA-T8028-0652 P0973LN is an S-Series SSA chassis managed Ethernet switch used in Foxboro Evo control network environments. It provides high-density Ethernet connectivity for controllers, servers, workstations, and network infrastructure components through 48 copper Gigabit Ethernet ports and SFP-based uplink connections.

The Foxboro SSA-T8028-0652 P0973LN is designed for process automation networks where predictable communication and centralized network management are required. It supports redundant power configurations and managed network functions, making it suitable for long-running DCS installations that require controlled network operation.

SSA-T8028-0652

Application Scenarios & Field Pitfalls (The Engineer’s Perspective)

Engineering Pain Point

A process plant loses communication with several operator stations and controllers at the same time. The controllers are healthy. Field I/O remains active. The issue is somewhere in the control network layer.

Network switches in DCS environments are often overlooked because they do not execute control logic. However, a managed switch failure can interrupt communication between critical system components and create widespread alarms.

The P0973LN is part of the communication backbone. Treat it as a control system component, not ordinary office networking equipment.

Typical Applications

• Oil & Gas Facilities – Foxboro Evo control networks connecting controllers, operator stations, engineering workstations, and servers.
• Chemical Processing Plants – Industrial Ethernet infrastructure for distributed process control systems.
• Power Generation Plants – DCS communication networks supporting turbine controls, auxiliary systems, and plant monitoring.
• Pharmaceutical Manufacturing – Controlled automation networks requiring managed communication paths and system monitoring.

Technical Pitfalls to Avoid

1. Verify Network Architecture Before Replacement

   The P0973LN is configured as part of a specific control network topology. Confirm switch configuration files, VLAN settings, IP addressing, and port assignments before replacement.

2. Check SFP Module Compatibility

   Fiber uplinks depend on the correct SFP/SFP+ transceiver type, wavelength, and fiber specification. A switch can power normally while fiber communication remains unavailable.

3. Confirm Power Supply Arrangement

   The P0973LN chassis uses separate power supply modules. Verify whether the installed system uses single or redundant power supplies before removing hardware.

Related Products

• Foxboro P0973KK SSA Chassis Managed Switch
  Similar SSA chassis switch platform with different port configuration. Used for larger control network installations requiring additional SFP connectivity.
• Foxboro P0973LQ Power Supply Module
  450W AC power supply designed for the P0973LN SSA chassis switch. A failed power module can appear as a switch hardware failure.
• Foxboro P0973KL Redundant Power Supply Option
  Additional power supply component used when redundant switch power operation is required.
• Foxboro P0973KD S4 Chassis Managed Switch
  Higher-capacity chassis switch family used in larger Foxboro Evo network architectures.
• Foxboro P0973JN Series Ethernet Switch
  Smaller managed Ethernet switch option used for edge-level control network applications.
• Foxboro Evo Control Network Components
  Network infrastructure components used with Foxboro controllers, servers, and operator stations.
• Foxboro FCP270 Controller
  Process control processor commonly integrated into Foxboro Evo architectures.
• Foxboro CP60 Controller Family
  Earlier Foxboro I/A Series controller platform that may share similar network infrastructure requirements.