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4OC12/ATM-IR-SC

The Cisco 4OC12/ATM-IR-SC is a high-performance ATM interface module designed for long-reach OC-12/STM-4 connectivity, ideal for scalable backbone and edge network deployments in refurbished Cisco systems.

SKU: 4OC12/ATM-IR-SC Brand: Product ID: 124247
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Description

The Cisco 4OC12/ATM-IR-SC is a high-performance ATM line card designed for enterprise and service provider networks requiring scalable and reliable optical connectivity. Equipped with four OC-12 (622 Mbps) ports, this interface module supports ATM networking over SONET/SDH, making it ideal for high-bandwidth applications and traffic aggregation. Its intermediate-reach (IR) SC connectors ensure stable optical transmission over medium distances, providing flexibility in network design. Built for compatibility with Cisco 12000 Series routers, this card enhances network efficiency while maintaining robust traffic management capabilities.

This used Cisco 4OC12/ATM-IR-SC module features advanced ATM traffic shaping, quality of service (QoS) support, and Virtual Circuit (VC) management to optimize data flow across networks. Designed with carrier-grade reliability, it includes hardware-based cell switching and segmentation and reassembly (SAR) functions to maximize performance. The module’s four SC fiber ports support SONET/SDH framing, ensuring seamless integration into existing optical infrastructures. A cost-effective choice for expanding network capacity, this pre-owned line card delivers enterprise-grade performance at a fraction of the cost of new hardware.

Who We Are
 
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.
 
What We Do
 
We make it easy to:
  • Sell Used Equipment: Get a quick, hassle-free quote and maximize the value of your old IT gear.
  • Buy Certified Networking Equipment: Access affordable, quality-tested equipment from top brands like Cisco, Juniper, Ciena, Fujitsu, Infinera and more.
Why Choose ROC Telecom?
  • Expertise You Can Trust: 15 years of experience in asset recovery and resale.
  • Sustainable IT Solutions: Reduce waste and support environmentally responsible practices.
  • Competitive Pricing: Fair, fast, and accurate valuations for all your equipment.
  • Free Shipping Logistics: Fast, secure, and hassle-free shipping or pickup options for buyers and sellers.
Our Process
  1. Submit a Request: You can use the “Buy” or “Sell” buttons above to get started — or fill out a form, call us at 585-406-1248, or email bailey@roctelecom.com. Whatever’s easiest for you, we’ll make it quick and hassle-free.
  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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