Neat connection option for Dell 6650 supply

[dpinvidic]

One of my Dell 6650 supplies just dies on me yesterday. I ordered a new one, and was trying to figure out an easy was of connecting the new supply when I get it.

I had previously soldered 12Ga. wire to three terminals for each connection.

Then I thought I would try to find the actual mating connectors. Found something better.
Dell PE6650 Power Distribution Board (do e-bay search)

This is the backplane board that the supplies plug into. The boards are about $18 and have three connectors. Using this method, you can keep a spare supply, and swap it out in a few minutes. You can even jumper the three pins which active the supplies.

Hope this helps.

Dan

[dpinvidic]

Update, I received the distribution board, and it only has two connectors which fit the power supply (still perfect). The third connector is similar, but a little bigger.

The best thing to do, is cut the circuit board around each connector to separate it. And leave it soldered to the circuit board. Use a hacksaw to cut, and then you need to file the edges smooth to remove any shorts caused by cutting. This is a 10 layer board, so the edges need to be clean. Just solder your large gauge wire to the back of the connector. All of the 12v pins are tied together, same with the grounds

This is very clean.

Dan

[pctomlin]

If you want the backplanes that go on the Dell 6650 you can source them here........

http://www.questcomp.com/questdetail...gn=FindchipsWS

[skunkworx]

Hmmm...I wonder if they carry the backplanes for HP 1200FWB's? I wanted to do the same thing as you for my charging cases but the extra cost is a bit prohibitive unless I can get them reliably for under $20. I don't mind soldering, but I like keeping the hot-swapability that they were designed with.

[dpinvidic]

You should look. I think the PUB does a better job of connecting all the common pins together, and it makes your harness cleaner. I paid $18 for the Dell board

Sent from my SCH-I545 using Tapatalk

[skunkworx]

I found the part number (491836-001), but apparently it's for a pretty mostly complete backplane which runs around $50-$80. I think if I could just get the slot dimensions and pin spacing I could probably rig up a generic set and call it a day. I just don't know much about the pin sets in order to even get started.

This as close of a first guess as I could make and they're cheap, but I haven't gotten around to ordering them quite yet.

http://www.allelectronics.com/make-a...NNECTOR/1.html

**edit**I just did the measurements of the link I just showed and it's a nearly 100% match! The only questionable size is the space between the pins where the board would fit into the connector. The wear marks on the pin pads show the outline of about 31 pins, so I think these might be a pretty safe bet. I'll post back if I get them and it works out.

**double edit** I put in an order for four of the edgeboard connectors and a few other items. Hopefully by the end of the week I can report back my findings.

[skunkworx]

Just passing on the update: I got the parts in today to do the clip-on power cable assembly and it works. I actually think I need to get a 32 pin version instead of the 31, but it's only missing one position which is probably acceptable. I looked all over and found the correct part and it had a pretty good price of around $2.50 apiece excluding shipping. Hopefully I'll be able to get the updated ones for the next batch of them that I want to experiment with, but I'd say it's a pretty solid bet that this is a good alternative to soldering directly onto the supply(ies). Thanks for reinspiring me to keep searching for the right part.

[pctomlin]

Strip all the control pin connectors out. A servo connector without the housing fits in the control pin hole perfectly. Check out the picture I posted for the back planes.