DSC and those tiny NMEA wires . . .

Expidia

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Hooked up my NEMA wires yesterday. I was wondering what I was going to use short of soldering until I read about Scotchlok connectors on another boating site.

They are also carried at Radio Shack under Radio Shacks own name so if you ask for Scotchloks the twits won't know what you are talking about.

They come as a 4 pack and are in Radio Shacks connector drawer.
Small round button sized plastic connectors. Clear plastic with a red cap.

You simply slide the ends of those Tiny NEMA wires (not stripped, just cut off at the ends) into the side of the connector and squeeze down the red cap with an ordinary pliers and a di-electric gel even coats the inside of the connection to make it water resistant too.

Great invention and a real time saver for a few bucks for 4 of them.

Just ask the clerk for the connectors for crimping together thin telephone wires (that's what the package says) which are clear with the red cap.

Radio Shack is one useless store in my opinion. No way this chain is ever going to last. Most everything one needs nowadays can be bought at Lowes, HD Walmart. Wires, connectors etc. and at a lot cheaper prices too. Last 3 times I went in there for simple items which should have been STOCK items at the Rat Shack, they did not carry them. This time the guy had no clue what a scotchlok connector was, but I spotted them as he was shuffling through his drawer of connectors. All they seem to care about is pushing their batteries and cell phones. They must make a bonus on how many triple A's they can move in a day!

To bad as I've grown up with them. They are everywhere. But they have no idea what their business model should be. They are taking a convenient and famous well known chain and letting it go down the drain :(

But these Scotchlok connectors are a great innovation and I thought I'd pass this tip along . . .
 

bruceb58

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30,796
Re: DSC and those tiny NMEA wires . . .

I would probably solder them and use heat shrink. These are critical wires and you want them to be making contact when you need them.

I am not a fan of these connectors. Over time and movement they will lose contact.
 

Expidia

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Re: DSC and those tiny NMEA wires . . .

I would probably solder them and use heat shrink. These are critical wires and you want them to be making contact when you need them.

I am not a fan of these connectors. Over time and movement they will lose contact.


This could be true, but the radio will probably crap out or I'll sell the boat before these connections fail :). It makes for a lot better connection than using wire nuts and water resistant too!

One wonders why if these NEMA connections are so vital why would they make the pigtails with the thinnest gauge wire I've seen. Just cheap I guess.

I have the wires wired tied up anyway for extra support. I also paid $10 for the gold crimp on PL259 connector that made installing the antenna a breeze without having to bring out the mini torch to solder it. I doubt the drop off from a solder on one compared to the gold crimp on one would make that big a difference in my range.

But I agree, soldering is always the better route but those Scotchloks make hooking up the electronics a breeze.
 

gonefishie

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Re: DSC and those tiny NMEA wires . . .

I agree, rat shack ain't what it used to be anymore. They started out as a store that sells electronic components but that was when stuff ain't as disposable and half way impossible to fix like today. They don't carry the components stuff anymore because rarely anyone buys them so they had to switch. If you ever need electronic component go to newark.com or similar vendor. They have everything under the sun for the most consumer. Anyway, those scotlock connector have been used in telecommunication for a long time. If you would have gone to a contractor supply place like Kirby Risk you could have had a box of a hundred connector for the same price of 4 at rat shack.
 

Expidia

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2,374
Re: DSC and those tiny NMEA wires . . .

I agree, rat shack ain't what it used to be anymore. They started out as a store that sells electronic components but that was when stuff ain't as disposable and half way impossible to fix like today. They don't carry the components stuff anymore because rarely anyone buys them so they had to switch. If you ever need electronic component go to newark.com or similar vendor. They have everything under the sun for the most consumer. Anyway, those scotlock connector have been used in telecommunication for a long time. If you would have gone to a contractor supply place like Kirby Risk you could have had a box of a hundred connector for the same price of 4 at rat shack.


Thanks for those tips. I usually buy most stuff online anyway from who ever has the best price and decent shipping. But when you need something quick I always dread the thought of wasting a trip down to Radio Shack.

I only needed one connector, so I gave it a shot. I like the design of the scotchloks and I'm going to order a box online for future jobs. They also have the same design for tapping onto an existing wire which is what I used for the ground.

I need to get back under the dash someday anyway and put in a fuse box, solder the connections and run the wires neater. Lund to my surprise, just uses an exposed terminal connector bar that the spade connectors plug into. It's just hanging there with no insulation! I need to upgrade that before it shorts out against the back of my radio bracket.

These are the connectors were talking about for others to see what they look like: http://www.radioshack.com/search/in...onnector&origkw=telephone wire connector&sr=1
 

dingbat

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Nov 20, 2001
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17,070
Re: DSC and those tiny NMEA wires . . .

One wonders why if these NEMA connections are so vital why would they make the pigtails with the thinnest gauge wire I've seen. Just cheap I guess.
.

NEMA is nothing more than a serial communication link using a message structure defined by NEMA.

Most serial connections are made via DB9 or DB25 connectors using ribbon cables. When wire discreetly the standard convention is to use the 24 gauge wire you find on your system
 
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