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Product

subsea Ethernet, RS-485 & sonar coaxial data cable TIA/EIA-485 / IEC 60794300 V (-40 to +80 °C)Subsea / Marine Outer Protective She

DRS485DB Water-Blocked RS-485 Bus CableTIA/EIA-485 / IEC 60794 — 300 V — -40 to +80 °C Subsea & Marine Cable

DRS485DB Water-Blocked RS-485 Bus Cable featuring stranded copper twisted pairs (4×2) and subsea / marine outer protective sheath (TIA/EIA-485 / IEC 60794, 300 V, -40 to +80 °C, min. bend radius 8 × OD).

Water-resistant

EMC screen

Outdoor & humid

Approved

Configuration

Order designation: DRS485DB RS-485 Bus 1×2×22AWG RS-485
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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification — confirmed in the datasheet and quotation for your order.

Application fit

Is DRS485DB RS-485 Bus 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: DRS485DB RS-485 Bus (TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification) featuring stranded copper twisted pairs (4×2), 100% al/pet foil electrostatic shield and subsea / marine outer protective sheath (3-layer construction).

DRS485DB RS-485 Bus — stepped horizontal cutaway showing Stranded Copper Twisted Pairs (4×2) and Subsea / Marine Outer — Layer cutaway

#	Layer	Material & reference
1	Stranded Copper Twisted Pairs (4×2)	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

DRS485DB RS-485 Bus — Standard Subsea & Marine Execution

Built to TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification with stranded copper twisted pairs (4×2) and subsea / marine outer protective sheath

DRS485DB RS-485 Bus — Custom Winch Length / Molded Termination

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

DRS485DB RS-485 Bus — 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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / operating system: 300 V (TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification)
Core / conductor construction: Stranded Copper Twisted Pairs (4×2) — 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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification
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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification
Hydrostatic pressure & water blocking: Radial and longitudinal water-blocking integrity verified per TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification
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: DRS485DB RS-485 Bus
Sheath colour & metre marking: Continuous metre-marked black outer finish (Subsea / Marine )
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard DRS485DB RS-485 Bus configurations

Manufactured to TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification 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
DRS485DB RS-485 Bus Construction Schedule (−40…+80 °C)
DRS485DB RS-485 Bus 1×2×22AWG RS-485	1 × 2 × 0.34 mm² (22 AWG) + Power Pair	Stranded SnCu + Foam PE + Foil/Braid	8.2	92	2.0	50
DRS485DB RS-485 Bus 4×2×24AWG Cat5e	4 × 2 × 24 AWG Subsea Gigabit Ethernet	Stranded SnCu + High-Pressure PE + SF/UTP	9.6	125	3.5	60
DRS485DB RS-485 Bus 4×2×23AWG Cat6+2C	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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification.

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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification)	DC resistance at 20 °C, optical attenuation and wall thickness within TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification limits	Every manufactured drum length
AC high-voltage dielectric & insulation resistance test (TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification)	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 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification)	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 60794 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 DRS485DB RS-485 Bus TIA/EIA-485 / IEC 60794 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

PDFDRS485DB Water-Blocked RS-485 Bus Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXDRS485DB RS-485 Bus 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 DRS485DB RS-485 Bus (DRS485DB Water-Blocked RS-485 Bus Cable)?

DRS485DB RS-485 Bus (DRS485DB Water-Blocked RS-485 Bus Cable) is manufactured in accordance with TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification for 300 V subsea,ROV and marine aquaculture service over -40 to +80 °C. Its 3-layer construction comprises stranded copper twisted pairs (4×2), 100% al/pet foil electrostatic shield and subsea / marine outer protective sheath.

What is the minimum bending radius and operating temperature range for DRS485DB RS-485 Bus?

The minimum bending radius for DRS485DB RS-485 Bus 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 DRS485DB RS-485 Bus arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Stranded Copper Twisted Pairs (4×2) — 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 DRS485DB RS-485 Bus?

Every production drum of DRS485DB RS-485 Bus undergoes routine conductor DC resistance / optical OTDR continuity, AC high-voltage dielectric and dimensional testing per TIA/EIA-485 & IEC 60529 AD8 Water-Blocked RS-485 Subsea Bus Specification, and is delivered with an EN 10204 3.1 factory test certificate.

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DRS485DB Water-Blocked RS-485 Bus Cable

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