My decoder has the 4 2-pin connectors as Marc described, plus a 4-pin and a 6-pin, both of which are for lighting.
WJSTIX, obviously,you've never seen a QSI decoder.......
wjstix By "pinouts" I'm guessing you mean an 8-pin harness to plug the decoder into the engine's DCC receptacle? A picture of the decoder would be helpful. Many decoders come with a place on one end to plug in a 9-pin receptacle, so you can get a harness with one 9-pin and one 8-pin end. Many DCC manufactures make them, they have different lengths of wire available and directions of connection etc. to fit your specific needs.
By "pinouts" I'm guessing you mean an 8-pin harness to plug the decoder into the engine's DCC receptacle? A picture of the decoder would be helpful. Many decoders come with a place on one end to plug in a 9-pin receptacle, so you can get a harness with one 9-pin and one 8-pin end. Many DCC manufactures make them, they have different lengths of wire available and directions of connection etc. to fit your specific needs.
The QSI decoder has a number of factory plugs on the board to connect everything. There are usually four two pin plugs (front truck / rear truck / motor / speaker) and one multi-pin (4 or 5) plug for the lighting.
Mark.
¡ uʍop ǝpısdn sı ǝɹnʇɐuƃıs ʎɯ 'dlǝɥ
Hello: crusader275
In some way this location may help you out. (wiring).
Titan Plug-In Upgrades For All Original QSI Factory Diesels: October 16, 2011
https://tonystrains.com/titan-plug-in-upgrades-for-all-original-qsi-factory-diesels-october-16-2011/
Having an Atlas Trainmaster with the wand - I'll say the 3 CVs are more convenient. Unless I feel like taking the shell off to see the exact placement of the reed switch and also SEE the blades close when the magnet is near... it's usually hit or miss even when Atlas has a picture showing exactly where under the shell the redd switch is. They can be picky about which way the magnet is oriented as well. And if you try to be tricky and use a stronger magnet like a Kadee uncoupler magnet or a rare earth magnet - you can permanently magnetize the reed contacts causing the loco to reset every time the power is removed. The ones with the jumper under the tender hatch were the most positive resetting variations, the jumper being on or not is a very positive action with no guesswork involved.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Wow........
I still have some of the first generation of QSI installed, and functioning (as of last train session three years ago) in BLI Paragon locomotives. Some of them, not all, came with a wand and the literature said to use the wand in a certain location to effect a factory reset. As of about 2007, I can't recall a single locomotive equipped with QSI decoders that came with wands or stated that the wands were necessary to do a reset. AFAIK, ALL versions of QSI can also be reset with the three-CV reset sequence. The wand is perhaps handier.
Otherwise....I'll say it again......wow..............................................................
There is QSI Solutions and Q. S. Industries:
http://www.qsisolutions.com/
http://qsindustries.com/
From what I gather from the QSIndustries site there is some sort of disagreement between the two parties. But the QSIndustries site implies that they will try to answer questions relating to the earlier decoders they made, which is what I think you have.
On the other hand, the Solutions site has manuals that you can view. There is probably a good chance that you can compare the decoder you have to the ones shown in the manuals.
The Industries site has a link to a Yahoo QSI forum. This is probably another place to look for information/get questions answered.
Good luck.
Sorry I can't be of more help sorting out the connections but the reed switch is for resetting the decoder.
Joe
I acquired a QSI decoder ostensibly removed from a NIB Walthers GP30, and I need the pinouts for the decoder so I can install it in another locomotive.The markings on the chip in the socket are:HO140F34GP30Copyright 2006, QSIand there are additional markings on the PCB itself: 050-0061-1 is silk screened on the PCB.I think I can determine the motor outputs (blue connector) and the track inputs, but nothing else....I'd rather not guess.It has a reed switch that is probably used to control the sound, I think.Anyway, I need details about how to connect it up, and program it. Any help would be appreciated.BTW, Walthers wouldn't give me any information, saying the information was propietary, and QSI has been unresponsive to email requests.