Dsub empty pin spots

[Mel]

Originally Posted by RV7A Flyer

How would you get them back out again, unless you've crimped them to a short pigtail of wire?
Seems completely unnecessary.

Using a pin extractor. If the extractor won't grip the pin tight enough, you can always gently push the pin out from the other side while the extractor is in place.

[TASEsq]

Thanks all,

Paul - congrats on your first flight!

I?m actually thinking now I might go with deutsch Dtm connectors - I can use the crimper I already have, and they work out cheaper than dsubs anyway (if you include the costs of the 2 backshells). Plus they can take 18-22 awg - be handy to be able to run 18 gauge on the connector without using 2 pins. (7.5 amps is the only limitation on the connector). Also waterproof. As an aside they have little plastic pins that get installed in the spare pin holes to keep the water out. At least for connectors in the tail or the wing roots - inside the cabin dsubs with no backshells would be perfect.

[YvesCH]

I have never filled empty D-Sub connections but in the wing-root as I have used Deutsch DT and DTM Connectors. There I have used those pins as mentioned before…

[bobnoffs]

a little off thread but potting was mentioned. shoe goo or a hot glue gun work great for potting.

[maniago]

Originally Posted by TASEsq

Thanks all,

Paul - congrats on your first flight!

I?m actually thinking now I might go with deutsch Dtm connectors - I can use the crimper I already have, and they work out cheaper than dsubs anyway (if you include the costs of the 2 backshells). Plus they can take 18-22 awg - be handy to be able to run 18 gauge on the connector without using 2 pins. (7.5 amps is the only limitation on the connector).

WRT to amps, not really an issue, just run more than one wire to separate pins and voila! More amps. Heavier, yeah I suppose if youre really counting calories, but a bigger connector would also be heavier so choose your poison I guess. Anyway, heater for the pitot tube comes to mind for this, and I ran a two wire twisted pair for that anyway (and a gnd pair back). Everything else out in the wings and tail ought to be less.

[jliltd]

Here is another vote for Deutsch connectors. I use them extensively, even under the cowl. On red cube fuel transducers, oil pressure sensors and the like. I use Deutsch connectors instead of the connectors supplied with the sensors and transducers and never have connection problems. I also use Deutsch DTM connectors on Garmin portable GPs bare wire cables so that any mounting panel can be readily removed. This also allows ease of upgrading interfacing RS232 components by re-pinning the connector vs. having to unsolder and resolder wires. And Deutsch connectors are environmentally sealed and don't corrode so are great for exterior use.












I have never populated unused pin positions in any Dsub or Deutsch connectors. I leave them empty.

Jim

[mciaglia]

Think of all that extra weight by adding unused pins

[TASEsq]

Thanks for the great photos of the DTM?s in situ. I?ve order a few 6 and 12 and will see how they go. The ones with the boot look good in the engine. Anyone used their little plastic mounting bases to clip on the connector?

[jliltd]

The boots are an option. Also, no fancy pin extractors are required to disassemble a Deutsch. Just a small flat blade screwdriver or awl is used to release the pins. You are going to like them. 😉

[YvesCH]

Originally Posted by TASEsq

Thanks for the great photos of the DTM?s in situ. I?ve order a few 6 and 12 and will see how they go. The ones with the boot look good in the engine. Anyone used their little plastic mounting bases to clip on the connector?

Yes I have used those also firewall forward. My TANIS preheat system came with Deutsch DT Connectors and I had to find a way to secure them somewhere. Thus I used either little strips of alumium or adel-clamps and the mounting base to secure those connectors. I have also used them for fuel flow and oil pressure.