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Product

subsea ROV umbilical, AUV tether & sonar tow cable ITU-T G.657.A2/B3 / IEC 60794Optical (0 V) (-40 to +85 °C)Subsea / Marine Outer Protective She

STFOC Non-Kink Expendable AUV Optical CableITU-T G.657.A2/B3 / IEC 60794 — Optical (0 V) — -40 to +85 °C Subsea & Marine Cable

STFOC Non-Kink Expendable AUV Optical Cable featuring bend-insensitive optical core (4×sm/mm) and subsea / marine outer protective sheath (ITU-T G.657.A2/B3 / IEC 60794, Optical (0 V), -40 to +85 °C, min. bend radius 4 × OD).

Water-resistant

Oil-resistant

Outdoor & humid

Approved

Configuration

Order designation: STFOC Expendable AUV Optical Cable 1×SM Ultra-Sl
Outer Ø ≈: 0.9 mm
Net weight ≈: 1 kg/km
Max. pulling ≈: 0.5 kN
Core / stranding: ITU-T G.657.B3 + Non-Kink Buffer + Aramid

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: Optical (0 V)
Operating temp.: −40…+85 °C
Min. bend radius: 4 × OD
Core / conductor: Bend-Insensitive
Outer protection: Subsea / Marine
Standard: ITU-T G.657.A2/B

Typical values for this cable type, based on ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is STFOC Expendable AUV Optical Cable right for your machine?

Immersion & wet locations

Suitable

Hydrolysis-resistant subsea PUR or HDPE outer sheath and water-blocked core interstices withstand continuous deep-ocean hydrostatic immers

Vertical / spreader reel

Suitable

Contra-helical galvanized steel wire armour or high-modulus aramid/LCP braid supports vertical traction winches, TMS cages and tow sheaves

Free-hanging vertical run

Suitable

Torque-balanced armour or neutrally buoyant foamed-PUR jacket prevents hockling and kinking during free-swimming ROV and tether excursions

Offshore platform & shipboard deck trays

Suitable

Resists seawater, marine bio-fouling, hydraulic oil, UV radiation and abrasion across vessel A-frames and launch-and-recovery systems (LAR

Energy chain / drag chain

Not suitable

Subsea ROV umbilicals and tow cables are optimized for winch deployment and water-column catenaries rather than high-speed factory drag ch

Use Drag-Chain Feeder Cable

Typical machinesUnderwater & Ocean ExplorationWork-Class & Observation ROV Umbilicals and TMS TethersOffshore Aquaculture Net Cleaners & Subsea Cage InspectionAUV, Ocean Glider & Expendable Spool-Payoff Micro-TethersUSV Towed Sonar Arrays, Seabed Crawlers & Subsea Trenchers

Construction

Layer by layer

Shown: STFOC Expendable AUV Optical Cable (ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard) featuring bend-insensitive optical core (4×sm/mm), uv-cured acrylate primary buffer coating and subsea / marine outer protective sheath (4-layer construction).

STFOC Expendable AUV Optical Cable — stepped horizontal cutaway showing Bend-Insensitive Optical Core (4×SM/MM) and Su — Layer cutaway

#	Layer	Material & reference
1	Bend-Insensitive Optical Core (4×SM/MM)	ITU-T G.657.B3 bend-insensitive single-mode / multi-mode optical fiber core
2	UV-Cured Acrylate Primary Buffer Coating	Concentric dual-layer micro-bend-resistant elastomeric primary optical buffer
3	Non-Kink High-Modulus Dielectric Buffer	Precision-extruded kink-resistant structural buffer for high-speed spool payoff
4	Subsea / Marine Outer Protective Sheath	Black heavy-duty submersible elastomeric outer sheath

STFOC Expendable AUV Optical Cable — Standard Subsea & Marine Execution

Built to ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard with bend-insensitive optical core (4×sm/mm) and subsea / marine outer protective sheath

STFOC Expendable AUV Optical Cable — Custom Winch Length / Molded Termination

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

STFOC Expendable AUV Optical Cable — 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 ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / operating system: Optical (0 V) (ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard)
Core / conductor construction: Bend-Insensitive Optical Core (4×SM/MM) — ITU-T G.657.B3 bend-insensitive single-mode / multi-mode optical fiber core
Primary dielectric / optical buffer: UV-Cured Acrylate Primary Buffer Coating — Concentric dual-layer micro-bend-resistant elastomeric primary optical buffer

Thermal

Continuous operating temperature: −40…+85 °C (submerged seawater & topside deck service)
Hydrostatic & thermal cycling endurance: Verified cold-bend and wet dielectric stability across −40…+85 °C per ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel cable drum

Mechanical

Outer jacket / sheath protection: Subsea / Marine Outer Protective Sheath — Black heavy-duty submersible elastomeric outer sheath
Minimum bending radius: 4 × OD
Reinforcement / screen / bedding layer: Non-Kink High-Modulus Dielectric Buffer Tube — Precision-extruded kink-resistant structural buffer for high-speed spool payoff

Resistance

Seawater, hydrolysis & oil resistance: Resistant to permanent seawater immersion, hydrolysis, hydraulic oil and bio-fouling per ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard
Hydrostatic pressure & water blocking: Radial and longitudinal water-blocking integrity verified per ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical 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: STFOC Expendable AUV Optical Cable
Sheath colour & metre marking: Continuous metre-marked black outer finish (Subsea / Marine )
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard STFOC Expendable AUV Optical Cable configurations

Manufactured to ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical 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
STFOC Expendable AUV Optical Cable Construction Schedule (−40…+85 °C)
STFOC Expendable AUV Optical Cable 1×SM Ultra-Sl	1 × G.657.B3 Single-Mode Micro-Tether	ITU-T G.657.B3 + Non-Kink Buffer + Aramid	0.9	1	0.5	10
STFOC Expendable AUV Optical Cable 2×SM Buoyant	2 × G.657.B3 Single-Mode Buoyant Tether	ITU-T G.657.B3 + Aramid/LCP + Foamed PUR	2.8	6	2.2	20
STFOC Expendable AUV Optical Cable 4×SM/MM Tacti	4 × G.657.A2/OM3 Subsea Optical Tether	Tight-Buffered Fiber + Aramid + Subsea PUR	5.6	28	6.8	35

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 ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ Ω/km	Rating / Impedance / Load	Operating temp.
1 × G.657.B3 Single-Mode Micro-Tether	0.01	1310/1550 nm (≤0.35 dB/km)	−40…+85 °C
2 × G.657.B3 Single-Mode Buoyant Tether	0.01	1310/1550 nm · SG ≈ 1.01	−40…+85 °C
4 × G.657.A2/OM3 Subsea Optical Tether	0.01	4-Ch Optical · 6.8 kN MBS	−40…+85 °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 (ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard)	DC resistance at 20 °C, optical attenuation and wall thickness within ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard limits	Every manufactured drum length
AC high-voltage dielectric & insulation resistance test (ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard)	Zero dielectric breakdown and verified wet insulation resistance for Optical (0 V) rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, tensile load & seawater immersion qualification (ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard)	Verified hydrostatic pressure integrity, breaking load and flex endurance across −40…+85 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

ITU-T G.657.A2/B3 / 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 STFOC Expendable AUV Optical Cable ITU-T G.657.A2/B3 / IEC 60794 Optical (0 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

PDFSTFOC Non-Kink Expendable AUV Optical Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXSTFOC Expendable AUV Optical Cable 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 STFOC Expendable AUV Optical Cable (STFOC Non-Kink Expendable AUV Optical Cable)?

STFOC Expendable AUV Optical Cable (STFOC Non-Kink Expendable AUV Optical Cable) is manufactured in accordance with ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard for Optical (0 V) subsea,ROV and marine aquaculture service over -40 to +85 °C. Its 4-layer construction comprises bend-insensitive optical core (4×sm/mm), uv-cured acrylate primary buffer coating and subsea / marine outer protective sheath.

What is the minimum bending radius and operating temperature range for STFOC Expendable AUV Optical Cable?

The minimum bending radius for STFOC Expendable AUV Optical Cable is 4 × OD across its continuous operating temperature range of -40 to +85 °C, ensuring mechanical flex endurance and hydrostatic reliability in subsea winches, TMS cages and aquaculture installations.

How are the concentric layers of STFOC Expendable AUV Optical Cable arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Bend-Insensitive Optical Core (4×SM/MM) — ITU-T G.657.B3 bend-insensitive single-mode / multi-mode optical fiber core; (02) UV-Cured Acrylate Primary Buffer Coating — Concentric dual-layer micro-bend-resistant elastomeric primary optical buffer; (03) Non-Kink High-Modulus Dielectric Buffer Tube — Precision-extruded kink-resistant structural buffer for high-speed spool payoff; (04) Subsea / Marine Outer Protective Sheath — Black heavy-duty submersible elastomeric outer sheath.

What factory test certificates are supplied with STFOC Expendable AUV Optical Cable?

Every production drum of STFOC Expendable AUV Optical Cable undergoes routine conductor DC resistance / optical OTDR continuity, AC high-voltage dielectric and dimensional testing per ITU-T G.657.B3 STFOC Non-Kink Expendable AUV Spool-Payoff Optical Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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01Selected sizes

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02Reel & motion

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03Message for our engineers

STFOC Non-Kink Expendable AUV Optical Cable

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Reel & motion:
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