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8 Twisted Screened Pairs 20AWG Underwater Cable | Subsea Signal

Published on:2026-05-24 Click:15

8 Twisted Screened Pairs 20AWG Underwater Cable | Subsea Signal

8 individually screened twisted pairs at 20AWG in PUR underwater cable. High-channel-count signal cable for ROV and subsea instrumentation systems.

Product introduction

8 Individually Screened Twisted Pairs 20AWG Underwater Cable

This high-channel-count underwater signal cable features 8 individually foil-screened twisted pairs at 20AWG, all enclosed in a PUR outer jacket. It provides 8 independent, noise-immune signal channels for ROV systems, subsea sensor networks, and instrumentation arrays -- where multiple simultaneous data streams must be transmitted reliably through seawater without crosstalk or interference.

Parameter Specification
Signal Pairs 8 x 2 x 20AWG (individually screened)
Jacket Material Polyurethane (PUR)
Voltage Rating 300V RMS
Temperature Range -30°C to +80°C
Depth Rating Up to 4,000 m
Overall Shield Foil + tinned copper braid
Inter-channel Isolation >60 dB
Protocols Supported RS-485, RS-232, 4--20mA, 0--10V, discrete

Key Applications

  • ROV multi-function signal and control tether
  • Subsea 8-channel sensor data logging
  • Underwater sonar array cabling
  • Marine scientific instrument multi-channel outputs
  • Offshore pipeline multi-sensor monitoring

Contact us for custom pair count or conductor size specifications: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.

Frequently Asked Questions

Can all 8 pairs run RS-485 simultaneously?

Yes. Each pair is independently shielded, so all 8 can simultaneously carry RS-485 at up to 10 Mbps over typical subsea cable lengths of 100--300 m. Each pair can also carry a different protocol -- mixing RS-485, 4--20mA, and discrete digital signals as needed.

Is this cable suitable for PROFIBUS DP communication?

Yes. PROFIBUS DP uses RS-485 balanced differential signalling, which the 20AWG screened twisted pairs support. Terminate with a 120-ohm resistor at each end of the PROFIBUS segment for proper bus termination.

Applications

  • Underwater cable assemblies for ROV, AUV and subsea vehicle power and signal delivery
  • Subsea sensor and instrument cabling requiring flexible, abrasion-resistant PUR jackets
  • Marine renewable energy cable connections, offshore platform and coastal installations
  • Underwater lighting, camera and video system cable assemblies with connector terminations
  • Custom umbilical cables for oceanographic research and temporary subsea deployments

Customization Options

  • Custom cable lengths from 1m to 1000m+ with specified conductor counts and gauges
  • Direct moulding termination to any ROV Connector series for complete cable assemblies
  • Neutral buoyancy options, Kevlar reinforcement and specialized jacket colors available
  • Certified cable tension, flex and pressure testing with full test documentation
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