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Nepal ONU Optical Network Unit QSFP

QSFP modules in Nepal, including 100G and 40G variants, are available for high-speed optical networking through suppliers like D-TECH and Ubuy, supporting data centers, ISPs, and enterprise networks.Overview of QSFP Modules

A QSFP (Quad Small Form-factor Pluggable) module is a compact, hot-pluggable optical transceiver used for high-speed data communication. It enables data transmission over optical fibers at rates up to 40 Gbps or 100 Gbps, depending on the module type, and is commonly used to connect switches, routers, and servers in data centers or enterprise networks . QSFP modules can support both multimode and single-mode fibers, with variants designed for short-range (SR), long-range (LR), or bi-directional (BiDi) applications .

Types and Specifications Available in Nepal
  1. 100G QSFP28 SR4 (Short Range)
    • Wavelength: 850nm
    • Distance: Up to 100 meters over multimode fiber
    • Interface: MTP/MPO connector
    • Data Rate: 4 x 25Gbps lanes, aggregate 103.1Gbps
    • Applications: Data centers, enterprise networks, storage networks, HPC environments
  2. 100G QSFP28 BiDi LR1 (Long Range)
    • Wavelength: Single fiber, simplex LC connector
    • Distance: Up to 10–20 km over single-mode fiber
    • Lane signaling: 53.125GBd with PAM4
    • Features: Digital diagnostic monitoring, KP4 FEC support, 3.3V power supply
    • Applications: ISP backbone, long-distance fiber connectivity, DCI links
  3. 40G QSFP (1 x 40GBase-AOC)
    • Uses Active Optical Cable (AOC) technology integrating transceivers and fiber
    • Distance: Typically 1 meter (custom lengths available)
    • Applications: High-capacity data center interconnects, rack-to-rack connections, enterprise networks
Suppliers in Nepal
  • D-TECH Trading: Offers a wide range of QSFP modules including 100G SR4, BiDi, and LR1 variants, with ready stock and technical support for ISPs, data centers, and hydropower projects .
  • Eman Communications: Provides QSFP28 modules with detailed specifications for both short-range and long-range applications .
  • Ubuy Nepal: Supplies 40G QSFP modules suitable for data centers and high-performance computing environments .
Key Considerations
  • Compatibility: Ensure the QSFP module matches the host device (switch/router) and fiber type (single-mode or multimode).
  • Distance and Wavelength: Choose SR, LR, or BiDi modules based on required link distance.
  • Power and Diagnostics: Modules typically operate on 3.3V and may include digital diagnostic monitoring for real-time performance tracking.
  • Connector Type: MTP/MPO for parallel fibers or LC for simplex connections. QSFP modules in Nepal provide high-speed, reliable optical connectivity for backbone networks, data center interconnects, and enterprise applications, with multiple suppliers offering both short-range and long-range options to meet diverse networking needs .
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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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