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    • Subsea Cable Assemblies
      Subsea Cable Assemblies
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      Single Ended

      Single-ended subsea cable assemblies with a connector on one end and a free-cable termination or bare leads on the other. Typical applications include subsea sensors, penetrators, and ROV-mounted i...

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    Technical Reference

    Subsea Control Architecture

    A complete system map of subsea control infrastructure — showing where DepthLink connectivity and sensor components operate across every zone, from topside to seabed.

    DepthLink Supplied
    Interface Point
    Third-Party System
    DepthLink System Interface Map — Full Architecture View Interactive
    ZONE 01 — TOPSIDE / SURFACE ZONE 02 — SPLASH ZONE / RISER ZONE 03 — SUBSEA CONTROL MODULE ZONE 04 — HYDRAULIC DISTRIBUTION ZONE 05 — VALVE SYSTEMS / SEABED WATER DEPTH 0-3000m 100m 500m 3000m MASTER CONTROL STATION Topside Control SCADA / DCS / EPU Surface Control System HYDRAULIC POWER UNIT HPU / Surface Pressure / Flow Control Topside Hydraulic Supply DEPTHLINK Topside Connectors Dry-mate / Bulkhead Interface Assemblies UMBILICAL CABLE HYDRAULIC LINE SIGNAL / POWER DEPTHLINK UTH Assembly Umbilical Termination Flying Leads / Penetrators SUBSEA CONTROL MODULE (SCM) DEPTHLINK SCM Connectors Wet-mate / ROV-operable Subsea Interface Plates Inductive / Hardwired 3RD PARTY Electronics Pod EPM / MCS Interface Control Electronics DEPTHLINK Control Wiring Internal Harness Assy Signal Routing DEPTHLINK XT Interface Sensors Connectors HYDRAULIC DISTRIBUTION UNIT Subsea Manifold / HDU Hydraulic Valve Packs / Solenoid Valves Third-Party — DepthLink Sensor Interfaces DEPTHLINK Sensor Interfaces Pressure / Flow Monitoring Points VALVE SYSTEM A Gate / Choke Valve Hydraulic Actuator DEPTHLINK Position Sensor End-of-travel Detection Reed / Hall-effect Partial Stroke Capable To 3,000m Depth VALVE SYSTEM B Ball / Gate Valve Hydraulic Actuator DEPTHLINK Pressure Switch Actuation Confirmation Subsea Rated to 3,000m Calibrated / Certified IEC Compliant SENSOR FEEDBACK SIGNAL
    ZONE 01
    Topside / Surface
    Dry-mate Connectors
    Bulkhead Interfaces
    MCS / EPU
    ZONE 02
    Umbilical & Flying Leads
    Umbilical Terminations
    Penetrators
    Flying Lead Assemblies
    ZONE 03
    Subsea Control Module
    SCM Connectors
    Control Wiring Harness
    Wet-mate Interfaces
    ZONE 04
    Hydraulic Distribution
    HDU / Manifold
    Sensor Interfaces
    Hydraulic Valves
    ZONE 05
    Valve & Sensor Feedback
    Position Sensors
    Pressure Switches
    Actuator Feedback
    DepthLink Components

    What DepthLink Supplies Across the Architecture

    ZONE 01–02 / TOPSIDE & UMBILICAL
    Wet-mate & Dry-mate Connectors

    ROV-operable wet-mate connectors and topside dry-mate interfaces for umbilical termination, flying lead connections, and surface control interfaces. Qualified for full field life with traceable documentation.

    To 3,000m ROV-operable 4–48 pin 600V
    View Connectors →
    ZONE 02–03 / UMBILICAL & SCM
    Cable Assemblies & Penetrators

    Flying leads, harness assemblies, umbilical termination assemblies, and pressure-rated penetrators for subsea control module interfaces and junction box connections.

    Pressure-sealed Custom lengths NORSOK Full traceability
    View Cable Systems →
    ZONE 03 / SUBSEA CONTROL MODULE
    SCM Connector Interfaces

    Subsea control module connector interfaces, internal wiring harnesses, and control wiring assemblies for EPM and valve controller integration. Specified for the SCM environmental conditions.

    SCM-rated Wet-mate Tested As-built docs
    View SCM Interfaces →
    ZONE 04–05 / VALVE & FEEDBACK
    Valve Position Sensors

    Subsea-rated position sensors for gate valve, choke valve, and ball valve monitoring. Reed switch and Hall-effect technologies, specified for the actuator travel profile and qualified for depth.

    Hall-effect Reed switch End-of-travel Partial stroke
    View Sensors →
    ZONE 04–05 / VALVE & FEEDBACK
    Pressure Switches

    Subsea pressure switches for hydraulic system monitoring, valve actuation confirmation, and process pressure feedback. Calibrated and pressure-tested before delivery with full certification.

    To 3,000m Calibrated Pressure tested IEC rated
    View Switches →
    ALL ZONES / SYSTEM LEVEL
    Integration Packages

    Pre-engineered, pre-tested system packages combining connectors, sensors, cables, and control interfaces — specified as a complete signal chain from topside to seabed valve feedback.

    System-level Pre-tested Full docs Fast delivery
    Request a Package →
    System-Level Specification
    Need Connectivity Across the Full Architecture?

    Send us your system requirements and our engineering team will specify the complete connectivity and sensor package — from topside to seabed.

    Submit a Technical Enquiry Browse Products →

    Application engineering

    Need help specifying a subsea component?

    Send the operating pressure, mechanical interface, electrical requirements and documentation scope. Our team will help narrow the configuration.

    Talk to an engineer → Configure an assembly →
    DepthLink

    Subsea switches, connectors, cable assemblies and engineering support for underwater sensing, connectivity and system integration.

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    Product systems

    • Switches & sensors
    • Subsea connectors
    • Cable assemblies
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    Applications

    • Valve monitoring
    • Actuator feedback
    • Offshore energy
    • Offshore wind
    • Nuclear cooling systems

    Technical updates

    Product developments, selection guidance and application notes for subsea engineers.

    Submit a technical enquiry Explore applications Engineering insights

    © 2026 DepthLink. Subsea sensing and connectivity systems.

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