RJ11 Telephone Cord for Power Cord???

Daboo

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I tried the search function, but everything seemed to not exactly answer my question, so here goes.

Will a RJ11 phone cord work to provide power to a Uniden radar detector?

I use my RD on my motorcycle and have purchased a third party power cable to power the unit. One end has an RJ11 connector with just red and black wires. The little clip on the RJ11 connector is about broken off, which means the wind will pull the power cord out easily. It occurred to me that I could take one of the many telephone cords I have around, cut the cord in half and wire the cut off end to the battery and provide power then to the RD. I haven't tried it yet, and thought I'd tap into the collective wisdom here first. It's a pain in the rear to get to the battery on this bike. :(

Chris
 

nomore55

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Chris, welcome aboard. You can purchase the crimper and fresh connectors at Home Depot for short $$. That will take care of this issue and future issue.
 

thesilverbullet

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Yes - I did this for a rear mounted RL. The are different grades of wire. I ended up using something a friend had but it was one of the better grades.

FYI - You will need to make sure the pin out is correct.
 
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davidc502

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This isn't directed at the OP, but this is the situation most people have in store for them.... having to fix a RJ11. It is beyond me why barrel connectors aren't used like on the Pro M. RJ11's give the indication of a smart cord to which they are absolutely not, and the clips all eventually break off anyway.

So for folks who have bought a R1/3 or R7 recently, it is so important to just baby the RJ11 clip to get maximum life. As someone who often removes the detector from the windshield to keep from enticing thieves, it is always in the back of my mind to be very careful of the connector. It's almost like range anxiety in an electric car! :) lol
 

sdrawkcaB

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Unfortunately the barrel connectors don’t cary data like serial data (Escort & Beltronics) or rudimentary data such as alert LED status and Mute switching signaling.
-- Double Post Merged: --
It is beyond me why barrel connectors aren't used like on the Pro M. RJ11's give the indication of a smart cord to which they are absolutely not, and the clips all eventually break off anyway.

Jon's already said that they will not use barrel connectors on any future detectors.

Going forward, there will never be a barrel connector on one of our radar detectors
 
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GTO_04

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Barrel connectors fail too. I would much rather replace an RJ-11 than a barrel connector. It makes for a lot cleaner installation. For anyone that has not tried to yet, it is extremely easy to replace an RJ-11 connector once you get the crimper tool.

GTO_04
 

TurboDriver

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Finding a "pre-made" phone cord that is Real Wire and has a "heavy" enough gauge wire is almost impossible to find today. I have some I have used like you are talking about but they were older and hard to find. It's hard to tell what the wire is like until you cut it and strip wire.

If wire is too thin or has fiber filler it won't give enough power to run detector. The longer the wire the better quality it needs to be.

Another issue with phone cords is that sometimes the pin outs flip from one end to other end so be careful with polarity, color on one end might not be in same location on other end.

Posted from my moto x4 using the RDF Mobile App!
 
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Allez

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My hardwire cord was cutting in and out at the RD end (power would go on and off when fiddling with the wire). I cut off the connector, used a new RJ11 connector from Home Depot, a crimper from Amazon, along with heatshrink tubing and Sugru to give the end some strain relief. Worked like a charm.
 

GTO_04

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Finding a phone cord that is Real Wire and has a "heavy" enough gauge wire is almost impossible to find today. I have some I have used like you are talking about but they were older and hard to find. It's hard to tell what the wire is like until you cut it and strip wire.

If wire is too thin or has fiber filler it won't give enough power to run detector. The longer the wire the better quality it needs to be.

Another issue with phone cords is that sometimes the pin outs flip from one end to other end so be careful with polarity, color on one end might not be in same location on other end.

Posted from my moto x4 using the RDF Mobile App!
Ask and you shall receive: #26 AWG modular line cord from Show Me Cables Heavy enough for RD use. It is very reasonably priced too.

GTO_04
 

sdrawkcaB

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My hardwire cord was cutting in and out at the RD end (power would go on and off when fiddling with the wire). I cut off the connector, used a new RJ11 connector from Home Depot, a crimper from Amazon, along with heatshrink tubing and Sugru to give the end some strain relief. Worked like a charm.
I like the idea of using Sugru for stress relief. Fantastic creative use!
 

commonc3nts

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I have used a regular cheap phone cable that I connected to the pins on my powered rearview mirror.
It has been working just fine for years. RDs use very low current.

I assume the original manufactures chose RJ11 because it clips in so it cant fall out from vibration and back in the day it was the cheapest choice. Now it is probably used so it does not fall out, cost, and tradition.
You dont want your power cord to pop out while driving.
 

davidc502

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Unfortunately the barrel connectors don’t cary data like serial data (Escort & Beltronics) or rudimentary data such as alert LED status and Mute switching signaling.
-- Double Post Merged: --

Jon's already said that they will not use barrel connectors on any future detectors.
#1 If the connector needs to carry data then by all means use a RJ11. I'm all for it :thumbsup:
#2 I'm talking about the Uniden R1/3 and R7 and Pro M or even the Pro SE all of which do not carry any data.
#3 As for Radenso, I expressed my opinion bout the decision to go with a RJ11, and if it is used for power and mute, then my opinion won't change - stick with a barrel connector.

@GTO_04
"Barrel connectors fail too. I would much rather replace an RJ-11 than a barrel connector. It makes for a lot cleaner installation. For anyone that has not tried to yet, it is extremely easy to replace an RJ-11 connector once you get the crimper tool."

Yeah, I'm not sure about that. Over the years I've never had one fail on a detector or ear buds/headphones. Usually something goes wrong with the cable first or other end. I would go as far as to say under normal usage one should never have to replace a barrel connector on a radar detector.
Over 15 years ago, I use to make RJ45 cables, so I still have the tools to get the job done RJ11 or 45, but most people will just end up buying a new Cigarette lighter cable or direct wire cable, and not fool with buying the tools to try and do it themselves. Frankly it is just a waste of money buying new cables for something that should never fail unless under harsh conditions.

Call me old school, but unless it is carrying data, stick with the barrel connector. Ultimately, it will last longer and save you money.
 
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BlueV1

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On those R1/R3 & R7 cables, aren't they providing a mute button and lights on the power supply? That is considered data for this situation if so.
 

Daboo

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Okay, so I swapped out the RJ-11 cable yesterday. The Uniden DFR9 powered up just fine. It looks like this is a quick simple fix to the problem of those broken tabs.

Thanks again for all your help.

Chris
 

gkay

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Barrel connectors fail too. I would much rather replace an RJ-11 than a barrel connector. It makes for a lot cleaner installation. For anyone that has not tried to yet, it is extremely easy to replace an RJ-11 connector once you get the crimper tool.

GTO_04
Why not USB then? I always found it odd we are using RJ11 still.
 

BlueV1

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There have been previous threads about this. One reason is that It's much easier to fix an RJ plug than a USB.
 

Deacon

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People. RJ11 has a positive latching mechanism, it’s easily repairable or replaceable, and it carries 12V power as well as even data for some models (Uniden power adapter or hardwire LED blinking for alerts, for example, or V1 data for concealed display, remote audio, and Bluetooth dongles, etc). USB is 5V, has no positive latching mechanism, is not easily repaired or replaced when damaged, and it is subject to some awful converters in cheapo hardwires and socket adapters. Even good dashcams that run on 5V generally include their own known good converters in-line with the power supply so they don’t have to worry about crappy ones frying out their cams and having extra warranty replacements. For detectors, USB is not only an unnecessary complication but essentially provides no actual benefit. So really there’s no reason for manufacturers to switch to it.
 

GTO_04

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The common RJ11 plug lets you use the same cord for Uniden, Escort, and the V1. That eliminates the need to re-do your hardwired installation if you switch RDs.

GTO_04
 

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