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• Expansion module, Managed (inherits L2/L3, 8 × 1G/100M SFP, IP30 rugged, fanless, DIN-rail, powered by base switch

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Cabling & connectors

SFP transceivers (1G / 100M only

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Cisco Catalyst IEM-3500-8S Expansion Module

The Cisco Catalyst IEM-3500-8S Expansion Module adds high-density fiber connectivity to IE3500 base switches for industrial and harsh environments. Providing 8 × 1G/100M SFP ports, it delivers reliable line-rate performance in a rugged, fanless IP30 DIN-rail form factor. The module is powered by the host switch (9 W module consumption and inherits IOS XE features, licensing, and management for seamless integration—ideal for extending fiber access/aggregation where copper is impractical.

Key Features:

• 8 × 1G/100M SFP Ports: Flexible fiber connectivity for resilient aggregation/backbone links.
• Ruggedized, Fanless Design (IP30: Built for space-constrained industrial sites with DIN-rail mounting.
• Inherits IOS XE Features & Licensing: Operates as part of the IE3500 system for consistent L2/L3 capabilities.
• Easy Management: Managed (Cisco IOS XE WebUI/CLI; optional Cisco Catalyst Center.
• Scalable Architecture: Helps expand total system ports up to 19 with compatible IE3500 bases.

Technical Overview:

• Recommended for: Fiber port-density expansion on Cisco IE3500 deployments in industrial/harsh environments.
• Ports: 8 × 1G/100M SFP.
• PoE Budget: No PoE.
• Switching Capacity: —
• Forwarding Rate: Line-rate on all ports (all packet sizes.
• Management: Managed (Cisco IOS XE WebUI/CLI; optional Cisco Catalyst Center.
• Security: Inherits features and license tier from the base IE3500 switch.
• Energy Efficiency: Fanless operation; powered by base switch (module consumption 9 W.