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Product

subsea Ethernet, RS-485 & sonar coaxial data cable TIA/EIA-485 / IEC 60529 AD8300 V (-40 to +80 °C)Subsea / Marine Outer Protective She

Water-Blocking Direct Burial RS-485 Data CableTIA/EIA-485 / IEC 60529 AD8 — 300 V — -40 to +80 °C Subsea & Marine Cable

Water-Blocking Direct Burial RS-485 Data Cable featuring stranded copper twisted pairs (2×2) and subsea / marine outer protective sheath (TIA/EIA-485 / IEC 60529 AD8, 300 V, -40 to +80 °C, min. bend radius 8 × OD).

Water-resistant

EMC screen

Outdoor & humid

Approved

Configuration

Order designation: Water-Blocking RS-485 Direct Burial 1×2×22AWG RS
Outer Ø ≈: 8.2 mm
Net weight ≈: 92 kg/km
Max. pulling ≈: 2.0 kN
Core / stranding: Stranded SnCu + Foam PE + Foil/Braid

All sizes (3)

Request a quote Datasheet WhatsApp info@tebaoflex.com

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 300 V
Operating temp.: −40…+80 °C
Min. bend radius: 8 × OD
Core / conductor: Stranded Copper
Outer protection: Subsea / Marine
Standard: TIA/EIA-485 / IE

Typical values for this cable type, based on TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is Water-Blocking RS-485 Direct Burial right for your machine?

Immersion & wet locations

Suitable

Longitudinal water-blocking compounds and high-pressure subsea PUR/PE jackets survive up to 600 bar (6,000 m) hydrostatic immersion.

Fixed installation

Suitable

Controlled 100 Ω Ethernet, 120 Ω RS-485 and 50/75 Ω coaxial impedance ensures low-attenuation telemetry across subsea arrays.

Free-hanging vertical run

Suitable

Stranded tinned copper conductors and braided shields tolerate ROV tether flexing, buoy moorings and subsea frame routing.

Offshore platform & shipboard deck trays

Suitable

NEK 606 MUD-resistant LSHF and UV-stabilized PUR jackets withstand offshore topside trays and wet deck splash zones.

Motorised monospiral reel

Not suitable

Unarmoured sensor bus and coax cables require strain relief and are not intended for unguided high-tension crane drums.

Use 1SSA13 Armoured Coax Tow

Typical machinesUnderwater & Ocean Exploration6,000 m Full-Ocean-Depth ROV Gigabit Ethernet & HD VideoAquaculture Cage RS-485 / Modbus Environmental TelemetryMultibeam Sonar, CTD & Hydrophone Coaxial Signal LinksNEK 606 Offshore Platform & Vessel Data Networks

Construction

Layer by layer

Shown: Water-Blocking RS-485 Direct Burial (TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard) featuring stranded copper twisted pairs (2×2), 100% al/pet foil electrostatic shield and subsea / marine outer protective sheath (3-layer construction).

Water-Blocking RS-485 Direct Burial — stepped horizontal cutaway showing Stranded Copper Twisted Pairs (2×2) and Subse — Layer cutaway

#	Layer	Material & reference
1	Stranded Copper Twisted Pairs (2×2)	Twisted pairs with Low-capacitance cellular Foam-Skin PE insulation
2	100% Al/PET Foil Electrostatic Shield	Laminated aluminum-polyester foil tape with drain wire
3	Subsea / Marine Outer Protective Sheath	Black high-density polyethylene (HDPE) waterproof outer sheath

Water-Blocking RS-485 Direct Burial — Standard Subsea & Marine Execution

Built to TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard with stranded copper twisted pairs (2×2) and subsea / marine outer protective sheath

Water-Blocking RS-485 Direct Burial — Custom Winch Length / Molded Termination

Available on continuous export winch drums or factory-terminated with subsea wet-mate / mechanical sockets

Water-Blocking RS-485 Direct Burial — Hydrostatic & Routine Certified

Supplied with EN 10204 3.1 routine dielectric, conductor/optical continuity & hydrostatic qualification report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / operating system: 300 V (TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard)
Core / conductor construction: Stranded Copper Twisted Pairs (2×2) — Twisted pairs with Low-capacitance cellular Foam-Skin PE insulation
Primary dielectric / optical buffer: 100% Al/PET Foil Electrostatic Shield — Laminated aluminum-polyester foil tape with drain wire

Thermal

Continuous operating temperature: −40…+80 °C (submerged seawater & topside deck service)
Hydrostatic & thermal cycling endurance: Verified cold-bend and wet dielectric stability across −40…+80 °C per TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel cable drum

Mechanical

Outer jacket / sheath protection: Subsea / Marine Outer Protective Sheath — Black high-density polyethylene (HDPE) waterproof outer sheath
Minimum bending radius: 8 × OD
Reinforcement / screen / bedding layer: 100% Al/PET Foil Electrostatic Shield — Laminated aluminum-polyester foil tape with drain wire

Resistance

Seawater, hydrolysis & oil resistance: Resistant to permanent seawater immersion, hydrolysis, hydraulic oil and bio-fouling per TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard
Hydrostatic pressure & water blocking: Radial and longitudinal water-blocking integrity verified per TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard
Subsea & conductor qualification standards: IEC 60228 / DNV-ST-E402 / ISO 13628-5 / IEC 60794 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: Water-Blocking RS-485 Direct Burial
Sheath colour & metre marking: Continuous metre-marked black outer finish (Subsea / Marine )
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard Water-Blocking RS-485 Direct Burial configurations

Manufactured to TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard for subsea robotics, ROV umbilicals, marine aquaculture and offshore sensor applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Max. pulling kN ≈	Min. bend R mm
Water-Blocking RS-485 Direct Burial Construction Schedule (−40…+80 °C)
Water-Blocking RS-485 Direct Burial 1×2×22AWG RS	1 × 2 × 0.34 mm² (22 AWG) + Power Pair	Stranded SnCu + Foam PE + Foil/Braid	8.2	92	2.0	50
Water-Blocking RS-485 Direct Burial 4×2×24AWG Ca	4 × 2 × 24 AWG Subsea Gigabit Ethernet	Stranded SnCu + High-Pressure PE + SF/UTP	9.6	125	3.5	60
Water-Blocking RS-485 Direct Burial 4×2×23AWG Ca	4 × 2 × 23 AWG Cat6 + 2 × 1.5 mm² Power	Stranded SnCu + 600-Bar Matrix + PUR	12.8	215	6.8	78

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom core counts, optical fiber channels, wet-mate terminations and continuous winch lengths available per TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ Ω/km	Rating / Impedance / Load	Operating temp.
1 × 2 × 0.34 mm² (22 AWG) + Power Pair	55.00	300 V (120 Ω RS-485)	−40…+80 °C
4 × 2 × 24 AWG Subsea Gigabit Ethernet	84.00	300 V (100 Ω 1000BASE-T)	−40…+80 °C
4 × 2 × 23 AWG Cat6 + 2 × 1.5 mm² Power	72.00	300 V (100 Ω Cat6 6000m)	−40…+80 °C

Every production length undergoes routine conductor DC resistance / OTDR optical attenuation, AC dielectric and dimensional verification.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
Conductor DC resistance / OTDR optical & dimensional check (TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard)	DC resistance at 20 °C, optical attenuation and wall thickness within TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard limits	Every manufactured drum length
AC high-voltage dielectric & insulation resistance test (TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard)	Zero dielectric breakdown and verified wet insulation resistance for 300 V rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, tensile load & seawater immersion qualification (TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard)	Verified hydrostatic pressure integrity, breaking load and flex endurance across −40…+80 °C	Type qualification & periodic lot audit

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

TIA/EIA-485 / IEC 60529 AD8 CompliantEN 10204 3.1 Factory Test CertificateCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX Water-Blocking RS-485 Direct Burial TIA/EIA-485 / IEC 60529 AD8 300 V CE

Delivery form: Heavy-duty export fumigated wooden drums, steel winch reels or pre-terminated subsea assemblies
Standard lengths: 500 m, 1,000 m, 3,000 m continuous winch lengths or custom cut-to-length subsea jumpers
MOQ: 100 m (standard configurations) · 300 m (custom subsea builds)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFWater-Blocking Direct Burial RS-485 Data Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXWater-Blocking RS-485 Direct Burial spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-29
Updated: 2026-10-29

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What governing standard and construction define Water-Blocking RS-485 Direct Burial (Water-Blocking Direct Burial RS-485 Data Cable)?

Water-Blocking RS-485 Direct Burial (Water-Blocking Direct Burial RS-485 Data Cable) is manufactured in accordance with TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard for 300 V subsea,ROV and marine aquaculture service over -40 to +80 °C. Its 3-layer construction comprises stranded copper twisted pairs (2×2), 100% al/pet foil electrostatic shield and subsea / marine outer protective sheath.

What is the minimum bending radius and operating temperature range for Water-Blocking RS-485 Direct Burial?

The minimum bending radius for Water-Blocking RS-485 Direct Burial is 8 × OD across its continuous operating temperature range of -40 to +80 °C, ensuring mechanical flex endurance and hydrostatic reliability in subsea winches, TMS cages and aquaculture installations.

How are the concentric layers of Water-Blocking RS-485 Direct Burial arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Stranded Copper Twisted Pairs (2×2) — Twisted pairs with Low-capacitance cellular Foam-Skin PE insulation; (02) 100% Al/PET Foil Electrostatic Shield — Laminated aluminum-polyester foil tape with drain wire; (03) Subsea / Marine Outer Protective Sheath — Black high-density polyethylene (HDPE) waterproof outer sheath.

What factory test certificates are supplied with Water-Blocking RS-485 Direct Burial?

Every production drum of Water-Blocking RS-485 Direct Burial undergoes routine conductor DC resistance / optical OTDR continuity, AC high-voltage dielectric and dimensional testing per TIA/EIA-485 Water-Blocking Direct-Burial & Submersible RS-485 Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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01Selected sizes

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03Message for our engineers

Water-Blocking RS-485 Direct Burial Water-Blocking Direct Burial RS-485 Data Cable

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