# Cables **URL:** https://discuss.bluerobotics.com/c/blue-robotics-products/cables/88.md [Latest](https://discuss.bluerobotics.com/latest.md) · [Categories](https://discuss.bluerobotics.com/categories.md) · [Tags](https://discuss.bluerobotics.com/tags.md) --- ## [How Long Has The Available Battery Power Cable Sets Been On The Shelf? Two Sets Have Failed The Vacuum Test](https://discuss.bluerobotics.com/t/how-long-has-the-available-battery-power-cable-sets-been-on-the-shelf-two-sets-have-failed-the-vacuum-test/23482)
**Author:** [@CBW3750](https://discuss.bluerobotics.com/u/CBW3750)\ **Replies:** 7\ **Last updated:** [August 24, 2026, 10:51am UTC](https://discuss.bluerobotics.com/t/how-long-has-the-available-battery-power-cable-sets-been-on-the-shelf-two-sets-have-failed-the-vacuum-test/23482 "2026-08-24T10:51:14Z")
I bought a Battery Power Cable Set just last week. The set arrived today and they failed the vacuum test. I tried using marine loctite epoxy and glue lined heat shrink to fix another set of the same design, but they’re s… --- ## [Fathom ROV Tether compatibility with RJ45 cable in short distance](https://discuss.bluerobotics.com/t/fathom-rov-tether-compatibility-with-rj45-cable-in-short-distance/22660)
**Author:** [@a.bera](https://discuss.bluerobotics.com/u/a.bera)\ **Replies:** 1\ **Last updated:** [March 20, 2026, 7:37pm UTC](https://discuss.bluerobotics.com/t/fathom-rov-tether-compatibility-with-rj45-cable-in-short-distance/22660 "2026-03-20T19:37:52Z")
Hi there… I am new to the underwater ROV world and to this forum. I want to know if we can use the standard version of Fathom ROV Tether (4 twisted pair) using RJ 45 connector over a shorter distance (between 20-30 m) t… --- ## [Fathom Cable Communication Issue](https://discuss.bluerobotics.com/t/fathom-cable-communication-issue/22084)
**Author:** [@Harshada](https://discuss.bluerobotics.com/u/Harshada)\ **Replies:** 12\ **Last updated:** [December 30, 2025, 6:41am UTC](https://discuss.bluerobotics.com/t/fathom-cable-communication-issue/22084 "2025-12-30T06:41:41Z")
Hello, I’m using Blue Robotics Fathom Tether cables for Ethernet communication with my underwater vehicle. I originally used a 30 m tether, and everything worked perfectly. Later, I switched to a 90 m Fathom tether, whi… --- ## [Speed of fathom tethere without tether interface](https://discuss.bluerobotics.com/t/speed-of-fathom-tethere-without-tether-interface/20507)
**Author:** [@SmokeySalmon](https://discuss.bluerobotics.com/u/SmokeySalmon)\ **Replies:** 4\ **Last updated:** [June 1, 2025, 3:06am UTC](https://discuss.bluerobotics.com/t/speed-of-fathom-tethere-without-tether-interface/20507 "2025-06-01T03:06:42Z")
Hi, i’m currently building an underwater ROV, and i’m planning to use around 40m of fathom tether to connect the blue robotic’s ethernet switch inside the ROV the to the laptop. Since the fathom-X interface board are f… --- ## [Fathom spool design question?](https://discuss.bluerobotics.com/t/fathom-spool-design-question/20181)
**Author:** [@schleitaucher](https://discuss.bluerobotics.com/u/schleitaucher)\ **Replies:** 1\ **Last updated:** [April 24, 2025, 5:24pm UTC](https://discuss.bluerobotics.com/t/fathom-spool-design-question/20181 "2025-04-24T17:24:15Z")
Hi there, I’m wondering what the purpose of the hooks at the fathom tether spool is? They make problems in usage because the cable entangles permanently during the spin off while the ROV is in operation. So I very ofte… --- ## [Which is the right cable to extend a Ping1d](https://discuss.bluerobotics.com/t/which-is-the-right-cable-to-extend-a-ping1d/17539)
**Author:** [@svanbodegraven](https://discuss.bluerobotics.com/u/svanbodegraven)\ **Replies:** 2\ **Last updated:** [July 25, 2024, 7:47am UTC](https://discuss.bluerobotics.com/t/which-is-the-right-cable-to-extend-a-ping1d/17539 "2024-07-25T07:47:38Z")
Hi! What is the right cable to extend a Ping1d? Thanks. --- ## [Cable type for drop cam](https://discuss.bluerobotics.com/t/cable-type-for-drop-cam/11573)
**Author:** [@jim\_p](https://discuss.bluerobotics.com/u/jim_p)\ **Replies:** 19\ **Last updated:** [January 29, 2024, 8:20pm UTC](https://discuss.bluerobotics.com/t/cable-type-for-drop-cam/11573 "2024-01-29T20:20:17Z")
Hi all, I am planning a submersible build. I want to use an off the shelf camera, two BR thrusters, and two BR lights. The camera will require cat5e. I am looking for a cable type that can accommodate cat5e plus the con… --- ## [Current rating for CAB-PUR-2-22AWG-4UTP-26AWG-R1](https://discuss.bluerobotics.com/t/current-rating-for-cab-pur-2-22awg-4utp-26awg-r1/15596)
**Author:** [@Morten](https://discuss.bluerobotics.com/u/Morten)\ **Replies:** 1\ **Last updated:** [December 11, 2023, 7:16am UTC](https://discuss.bluerobotics.com/t/current-rating-for-cab-pur-2-22awg-4utp-26awg-r1/15596 "2023-12-11T07:16:25Z")
SKU: BR-100897 HS Code: 8544.11.0050 Dear Blue Robotics We are using 15m of cable for communication and power to an underwater device (half of the cable is underwater and the other half in free air). I have been look… --- ## [Ping Cable - Characteristic Impedance?](https://discuss.bluerobotics.com/t/ping-cable-characteristic-impedance/14876)
**Author:** [@scuba-hacker](https://discuss.bluerobotics.com/u/scuba-hacker)\ **Replies:** 1\ **Last updated:** [August 16, 2023, 9:47am UTC](https://discuss.bluerobotics.com/t/ping-cable-characteristic-impedance/14876 "2023-08-16T09:47:16Z")
I’m using the 4 core Ping Cable for carrying RS485 differential signals at 9600 baud in a scuba diving Sat Nav project. I’d like to terminate the cable ends with appropriate sized resistors. To determine this I’m asking … --- ## [Tether Connectors / Twisted Pairs](https://discuss.bluerobotics.com/t/tether-connectors-twisted-pairs/13387)
**Author:** [@johannv](https://discuss.bluerobotics.com/u/johannv)\ **Replies:** 3\ **Last updated:** [January 3, 2023, 2:05am UTC](https://discuss.bluerobotics.com/t/tether-connectors-twisted-pairs/13387 "2023-01-03T02:05:49Z")
Hello team, For tether connections I am currently using Bluetrail 8 pin bulkheads & connectors on my BR2, tethers, and deck leads. I have found them to be a bit too delicate and I have broken a few pins in the field and… --- ## [Fathom ROV Tether resistance to chemicals](https://discuss.bluerobotics.com/t/fathom-rov-tether-resistance-to-chemicals/12905)
**Author:** [@Cocis](https://discuss.bluerobotics.com/u/Cocis)\ **Replies:** 3\ **Last updated:** [September 14, 2022, 8:49pm UTC](https://discuss.bluerobotics.com/t/fathom-rov-tether-resistance-to-chemicals/12905 "2022-09-14T20:49:34Z")
Good morning, We are currently using the bluerov in a Firefighter project. Given that many times in our scenarios it happens to work in contaminated water (petrol and oil based pollutants) I was wandering if anybody kno… --- ## [Tether drag on ROV](https://discuss.bluerobotics.com/t/tether-drag-on-rov/9092)
**Author:** [@gorkemengin](https://discuss.bluerobotics.com/u/gorkemengin)\ **Replies:** 6\ **Last updated:** [September 2, 2021, 5:21am UTC](https://discuss.bluerobotics.com/t/tether-drag-on-rov/9092 "2021-09-02T05:21:45Z")
I am working on the tunnel inspection ROV design. We will use a tether as a cable. Can you help me calculate the force that will affect the ROV of the tether cable? cable length will be 7000m. You can specify in the sugg… --- ## [Inquire about using cable power and signal at the same time](https://discuss.bluerobotics.com/t/inquire-about-using-cable-power-and-signal-at-the-same-time/9987)
**Author:** [@HanJIK](https://discuss.bluerobotics.com/u/HanJIK)\ **Replies:** 9\ **Last updated:** [July 1, 2021, 8:49am UTC](https://discuss.bluerobotics.com/t/inquire-about-using-cable-power-and-signal-at-the-same-time/9987 "2021-07-01T08:49:05Z")
I am writing because I have a cable inquiry. Can Fathom ROV Tether (ROV-ready) cables be used as power cables like High-Power Tether Cable with Connectors for OTPS cables? I’m trying to use less than 300VDC as DC. In su… --- ## [ROV Power Cable](https://discuss.bluerobotics.com/t/rov-power-cable/4301)
**Author:** [@saeidjson](https://discuss.bluerobotics.com/u/saeidjson)\ **Replies:** 1\ **Last updated:** [February 11, 2019, 4:53pm UTC](https://discuss.bluerobotics.com/t/rov-power-cable/4301 "2019-02-11T16:53:34Z")
Hi everyone We have a ROV robot that operates at 24 volts and with direct input power (No battery) The cable used is 50 meters Power consumption 1000 watts 35 Amp used What cable number should we buy? (AWG) --- ## [Battery cables deterioating](https://discuss.bluerobotics.com/t/battery-cables-deterioating/1769)
**Author:** [@kaosrulz](https://discuss.bluerobotics.com/u/kaosrulz)\ **Replies:** 5\ **Last updated:** [November 22, 2017, 8:33pm UTC](https://discuss.bluerobotics.com/t/battery-cables-deterioating/1769 "2017-11-22T20:33:41Z")
Not sure if this is the right category. The battery cables coming out of the penetrator that connects to the battery are splitting the plastic sheath around the wire. The sheath gets bent alot when installing the batter… --- ## [Jacket stripping high power cable(2 conductor)](https://discuss.bluerobotics.com/t/jacket-stripping-high-power-cable-2-conductor/1316)
**Author:** [@jakkala-kalvik](https://discuss.bluerobotics.com/u/jakkala-kalvik)\ **Replies:** 4\ **Last updated:** [July 28, 2017, 10:20am UTC](https://discuss.bluerobotics.com/t/jacket-stripping-high-power-cable-2-conductor/1316 "2017-07-28T10:20:15Z")
Hi, I am having a hard time stripping the high power cable. Every time I try cutting into the outer jacket I end up nicking the inner cables exposing the copper. Is there a better way to do this the blade is not working …