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NIM-4EM

The Cisco NIM-4EM is a compact, high-performance network interface module designed for Cisco ISR 4000 Series routers, offering four analog FXO/FXS voice ports ideal for expanding voice connectivity in branch office deployments.

SKU: NIM-4EM Brand: Product ID: 326335
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Description

The Cisco NIM-4EM is a network interface module designed to expand the connectivity capabilities of Cisco ISR 4000 Series routers. This module offers four high-density E&M (Ear and Mouth) voice ports, making it ideal for integrating legacy analog voice equipment into modern VoIP infrastructures. Built with durability and compatibility in mind, the NIM-4EM fits into a network interface module slot on supported ISR routers, allowing seamless integration without additional power or space requirements. Its compact design and Cisco-quality construction make it a reliable choice for businesses upgrading or maintaining hybrid voice systems.

Technically, the NIM-4EM supports signaling standards such as Type I-V E&M, and is equipped with RJ-45 connectors for each port, ensuring easy and secure cable connections. It uses DSP resources from the host router, requiring minimal configuration while delivering consistent voice performance. The module is hot-swappable, allowing for maintenance or upgrades without disrupting network operations. For those sourcing used or refurbished networking gear, the NIM-4EM offers a cost-effective way to retain analog voice functionality within a scalable Cisco environment.

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ROC Telecom is a family-owned, Texas-based company specializing in helping businesses unlock value from their networking and telecom equipment. From routers and switches to optical gear and more, we provide a seamless solution for businesses looking to sell, recover assets responsibly, or buy quality-tested equipment at competitive prices.
 
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Why Choose ROC Telecom?
  • Expertise You Can Trust: 15 years of experience in asset recovery and resale.
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  2. Quick Evaluation: We’ll assess your equipment—whether you’re looking to sell it or find the right gear for your needs—and provide a fair offer.
  3. Simple Logistics: Fast, secure, and straightforward shipping or pickup solutions.
  4. Value Delivered: Recover funds from unused equipment or save on quality-tested networking and telecom gear.
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