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Nine Pin D cables

Posted: Thu May 13, 2010 2:31 pm
by hjerald1
I need a nine-pin D cable for a preamp. In talking to Don Orie, I am not alone in this need! How have folks on the forum solved this need?

Re: Nine Pin D cables

Posted: Thu May 13, 2010 2:57 pm
by bk8509a

Re: Nine Pin D cables

Posted: Thu May 13, 2010 10:25 pm
by Doug Coulter
Or any computer store -- I have far too many already, they are not rare if we're talking about the same thing. Or Marlin P Jones will sell connectors and cable, as will many others who charge more money.

For example.

Re: Nine Pin D cables

Posted: Fri May 14, 2010 10:33 pm
by tligon
If you mean 9-pin standard-density d-sub connectors in the DE shell size, welcome to my life.

As the others have said, these are the standard connector for RS-232 and RS-422 serial communications since the PC was introduced.

And dammit, they are DE-9 connectors, not DB-9 connectors. But some catalogs, including DigiKey, insist on using the DB shell size prefix, which actually refers to the DB-25.

Yeah, I know, too much information.

A computer serial cable will probably work electrically (if it has all nine lines run through it), but may not perform well. If you are putting signal thru the cable, it may need the signal-carrying leads to be twisted pair and/or shielded. Around here, I use mil-spec crimping tools to build cables, but most hobbyists can't afford the tools and use solder-cup connectors instead. has Cinch 538-DEH-9P and 538-DEH-9S available. These are pin (male) and socket (female) connectors respectively.