$3.50$6.00 m

This professional-grade tether combines rugged strength and durability with high-performance electrical characteristics for wide-ranging ROV and subsea applications. Built with a polyurethane jacket for improved flexibility and better adhesion to potting materials.

Also see the ROV-Ready version of this product, which comes with a penetrator and connector installed.

Please note! When used with the Fathom-X Tether Interface Board Set, the maximum recommended length and the longest distance we have observed communication is 300m for the standard Fathom ROV Tether and 200m for the Fathom Slim ROV Tether. Maximum distance may vary when used with different tether interfaces.

This product has a lead time of 1 day to allow for cutting to length.

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Product Price
SKU: CAB-NBPUF-XUTP-26AWG-VP
HS Code: 8544.11.00.30

Product Description

The Fathom Tether is a high quality tether cable designed specifically for ROVs and other subsea applications. It is neutrally buoyant, has 350 lb breaking strength, and is embedded with water-blocking fibers to seal any leaks. With diameters of 4mm and 7.6mm, these tethers are slimmer than the vast majority of comparable ROV tethers.

The tether carries one or four unshielded twisted pairs (UTP) of 26AWG wire. These pairs are colored and arranged in the same fashion as a Cat5 networking cable including cross-talk resistance.

The core of the cable contains Kevlar strands for strength and Dacron fibers for space filling. Both fibers are impregnated with waterblocking compound to block any leaks caused by nicks or rips in the cable. The high-visibility yellow polyurethane foam jacket resists abrasion and provides neutral buoyancy.

The stiffness of the cable is designed to be flexible enough to give plenty of freedom to your ROV, but stiff enough that it does not become tangled easily.

The capabilities of this tether are meant to provide design flexibility and a wide variety of uses.

Product Description

The Fathom Tether is a high quality tether cable designed specifically for ROVs and other subsea applications. It is neutrally buoyant, has 350 lb breaking strength, and is embedded with water-blocking fibers to seal any leaks. With diameters of 4mm and 7.6mm, these tethers are slimmer than the vast majority of comparable ROV tethers.

The tether carries one or four unshielded twisted pairs (UTP) of 26AWG wire. These pairs are colored and arranged in the same fashion as a Cat5 networking cable including cross-talk resistance.

The core of the cable contains Kevlar strands for strength and Dacron fibers for space filling. Both fibers are impregnated with waterblocking compound to block any leaks caused by nicks or rips in the cable. The high-visibility yellow polyurethane foam jacket resists abrasion and provides neutral buoyancy.

The stiffness of the cable is designed to be flexible enough to give plenty of freedom to your ROV, but stiff enough that it does not become tangled easily.

The capabilities of this tether are meant to provide design flexibility and a wide variety of uses.

Contents

  • 1 x Tether Cable with bare ends (cut to length)

Specifications

Standard Fathom ROV Tether

ParameterValue
Physical
Tether Diameter7.6 mm0.30 in
Weight0.043 kg/m0.0287 lb/ft
Outer JacketPolyurethane Foam
Buoyancy in FreshwaterNeutral
Buoyancy in SaltwaterSlightly Positive
Wire Gauge0.14 mm226 AWG
Working Strength35 kgf80 lb
Breaking Strength155 kgf350 lb
Minimum Working Bend Diameter75 mm3 in
Compatible WetLink PenetratorWLP-M10-7.5MM-HC
Electrical
DC Resistance @ 20°C0.0386 Ω/ft0.127 Ω/m
Insulation Resistance @ 500 VDC> 500 MΩ/kft> 1640 MΩ/km
Voltage Rating300 VDC

Fathom Slim ROV Tether

ParameterValue
Physical
Tether Diameter4.0 mm0.16 in
Weight in Air0.012 kg/m0.00805 lb/ft
Jacket MaterialPolyurethane Foam
Buoyancy in FreshwaterNeutral
Buoyancy in SaltwaterSlightly Positive
Wire Gauge0.14 mm226 AWG
Working Strength35 kgf80 lb
Breaking Strength155 kgf350 lb
Minimum Working Bend Diameter25 mm1 in
Compatible WetLink PenetratorWLP-M06-4.5MM-HC
WLP-M10-4.5MM-HC
Electrical
DC Resistance @ 20°C0.0445 Ω / ft0.146 Ω / m
Voltage Rating300 VDC

Pinout

PairWireColorBinder Connector Pin #
Pair 1Wire 1Blue1
Wire 2Blue/White2
Pair 2Wire 1Orange3
Wire 2Orange/White4
Pair 3Wire 1Green5
Wire 2Green/White6
Pair 4Wire 1Brown7
Wire 2Brown/White8

Cross Section

Standard Fathom ROV Tether

Fathom Slim ROV Tether

Revision History

7 August 2018

  • CAB-NBPUF-4UTP-26AWG-R2 – Update to new construction with polyurethane foam jacket

3 November 2017

  • CAB-NBPUF-1UTP-26AWG-R1 – Initial Release
Soldering to the Binder 770 Connector
This guide will show you how to solder the Fathom Tether cable and other wires to the Binder 770 Series plug.
Thimble use with Fathom Tether and Fathom Slim Tether
Learn how to securely attach the Fathom Tether to a subsea vehicle!
Cable Stripping
Learn how to properly strip cables for use with WetLink Penetrators!
WetLink Penetrator Assembly Guide
The WetLink Penetrator (WLP) is our next-generation solution for low-cost, high pressure, high reliability sealing of electrical cables. This guide will show you how to assemble a WetLink Penetrator using our WLP assembly tools or common hand tools.

Community

Blue Robotics Forum – Product Support