Cisco Catalyst IEM-3400-8T Industrial Ethernet Expansion Module

• Smart manufacturing and industrial automation networks
• Factory floor machine and sensor connectivity expansion
• Oil and gas field industrial Ethernet deployments
• Power grid and utility substation networking
• Intelligent transportation system infrastructure
• Water treatment and environmental monitoring systems
• Warehouse and logistics automation networks
• Industrial IoT (IIoT) device aggregation points
• Remote edge site network expansion
• Critical infrastructure OT/IT converged networks

• Adds 8 Gigabit Ethernet copper ports to Catalyst 3400 industrial switches
• Enables scalable expansion of industrial network infrastructure
• Designed for harsh and mission-critical operational environments
• Supports OT and IT network convergence strategies
• Enhances industrial edge connectivity for IIoT deployments
• Seamless integration with Cisco Catalyst industrial ecosystem
• Maintains centralized management through Cisco networking platforms
• Reduces need for standalone switch deployments
• Supports modular, incremental network scaling
• Optimized for high-availability industrial operations
• Enhances network resilience in distributed environments
• Supports factory automation and smart infrastructure use cases
• Helps reduce total cost of industrial network expansion
• Strengthens long-term infrastructure lifecycle planning
• Enables consistent security policy enforcement across edge networks

• Brand: Cisco
• Product Type: Industrial Ethernet Expansion Module
• Model: Cisco Catalyst IEM-3400-8T
• Ports: 8 × 10/100/1000 Mbps RJ-45 Gigabit Ethernet
• Port Type: Copper Ethernet interfaces
• Compatibility: Cisco Catalyst 3400 Series Industrial Switches
• Deployment Environment: Industrial / Harsh environments
• Network Role: Edge port expansion module
• Use Case: OT/IT converged industrial networking
• Management: Integrated via Cisco Catalyst industrial switch platform
• Installation Type: Modular switch expansion slot integration

WHY CHOOSE THIS PRODUCT?

• Application Layer: Layer 2/Layer 3 dependent on host switch configuration
• Organizations choose the Cisco IEM-3400-8T to scale industrial network capacity without redesigning or replacing existing switching infrastructure.
• It enables flexible expansion of Ethernet ports in environments where uptime, resilience, and deterministic performance are critical. This reduces capital expenditure while supporting incremental network growth aligned with operational needs.
• Compared to standalone industrial switches, it offers tighter integration, simplified management, and reduced deployment complexity within Cisco Catalyst industrial ecosystems. It is particularly valuable for organizations modernizing OT networks while maintaining strong cybersecurity and operational continuity.