ZITHA SPECIALTYSPECIALTY FIBER CABLES Technical Inquiry

FTTH New Cuban DAC High-Speed ​​Cable

The FTTH New Cuban DAC is a high-speed Direct Attach Copper cable designed for short-range, cost-effective, and reliable data transmission in modern network and data center environments.Overview of DAC Cables

Direct Attach Copper (DAC) cables are factory-terminated copper assemblies that connect devices such as servers, switches, and storage units. They are available in passive and active versions:

  • Passive DAC: Requires no external power or electronics, ideal for short-range connections (1–5 meters) within racks, offering low cost and low power consumption .
  • Active DAC: Incorporates retimers or redrivers to preserve signal integrity and extend reach up to 9 meters, suitable for inter-rack connections or high-density deployments . DAC cables support a wide range of data rates, including 10Gbps, 25Gbps, 40Gbps, 50Gbps, 100Gbps, 200Gbps, 400Gbps, 800Gbps, and even 1.6Tbps, depending on the cable design and form factor (SFP, QSFP, OSFP) ( ).
Applications

The FTTH New Cuban DAC is particularly suited for:

  • FTTH (Fiber to the Home) networks where short-range, high-speed connections are required between optical network terminals and distribution points.
  • Data centers and hyperscale deployments, connecting servers to switches within racks or across adjacent racks .
  • High-performance computing (HPC) and AI workloads, where low-latency, high-bandwidth interconnects are critical .
Advantages
  • High reliability and low latency: Copper DAC cables provide stable connections with minimal signal loss over short distances .
  • Cost-effective: Passive DACs are inexpensive compared to fiber or active solutions, making them ideal for budget-conscious deployments .
  • Flexible deployment: Active DACs allow for longer reach and maintain signal integrity in high-density racks, supporting modern networking standards like QSFP-DD, OSFP, and SFP112 .
  • Customizable options: Manufacturers offer various lengths, wire gauges, shielding, and color-coded pull-tabs to meet specific deployment needs .
Technical Considerations
  • Signal integrity: Active DACs use embedded chips to boost signal quality, while passive DACs rely on high-quality copper and shielding for low-loss transmission .
  • Compatibility: Works with standard high-speed transceivers and supports Ethernet and InfiniBand protocols up to 800G .
  • Environmental resilience: Designed to withstand typical data center conditions, including temperature variations and electromagnetic interference . In summary, the FTTH New Cuban DAC High-Speed Cable is a versatile, high-performance copper interconnect solution optimized for short-range, high-speed data transmission in FTTH networks, data centers, and high-density computing environments, offering a balance of cost, reliability, and scalability .
FTTH New Cuban DAC High-Speed ​​Cable

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Technical note

This reference is intended for preliminary specialty-cable research. Compatibility, link budgets, fire performance, installation methods, test limits and applicable standards must be verified for the specific project.

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