Submarine Line Terminal Equipment (SLTE)

Submarine cables are the backbone of global connectivity. SLTE is the cornerstone of the data highway that transport vast amounts of data on these cables.

Recognized as the platform with high integration level in the industry

Huawei Marine's SLTE products, the OSN 8800 and OSN 9800, leverage Huawei's industry leading WDM technology to deliver reliable, high performance, large capacity optical transmission across the vast reaches of submarine cable networks.

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Key Features:

  • Supports up to 25.6 Tbit/s cross-connect capacity
  • Supports digital line segment lengths of up to 14,000 km, on repeatered systems, or 600+ km, on unrepeatered systems
  • Supports coherent line rates of 100G, 200G, 400G, and 1T
  • Supports Flexgrid WSS (37.5 GHz, 50 GHz, 75 GHz, 100 GHz)
  • Supports encapsulation of VC, ODUk, and packet services
  • Provides multiple network-level protection schemes and intelligent network management to ensure Tier-1 reliability
  • Unified platform for submarine and terrestrial networks

Key Technology

ODSP designed in-house

Supporting high performance SDFEC and large dispersion compensation


PDM BPSK, PDM QPSK, 8QAM, 16QAM, improve non-linear mitigation


ROPA, HBA, Raman, enhanced-Raman


WSS-based multi-degree ROADM

Control plan


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