Repeatered Submarine Fiber Optic Cable

ZTT’s Repeatered Submarine Optical Cable has obtained international UJC certification. It is suitable for intercontinental transoceanic long-distance, low-loss, high-bit-rate repeatered submarine communication systems, as well as subsea observation networks and marine three-dimensional monitoring systems.

It supports up to 96 optical fibres, with a maximum operating voltage of 20 kVDC and maximum deployment water depth of 8,000 m. The product range includes DA, SA, LWP and LW cable types.

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High Voltage Capacity
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Up to 20 kV operation reduces current and power loss. Precision HDPE extrusion guarantees high reliability.

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Deep-Sea Operation
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Rated for 8,000 meters depth. Tested at 127MPa with real-time optical attenuation and insulation integrity monitoring.

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Low Signal Attenuation
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G.654D optical fibers maintain attenuation below 0.16 dB/km.

Fiber Type: G652D, G654D, G655
Max Fiber Count: 96 cores
Max Operating Voltage: 20 kV
Conductor Resistance: ≤1.0 Ω/km
Max Applicable Water Depth: 8,000 m
Attenuation Coefficient: ≤0.185 dB/km (G652D); ≤0.155 dB/km (G654D)

Transcontinental communications backbone infrastructure
Government secure network operations
Deep-sea scientific monitoring (seismology, climate research)
Offshore energy platform control networks

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Repeatered Submarine Fiber Optic Cable

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Non-Repeatered Submarine Fiber Optic Cable

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