Breaking News
Comments
Newest First | Oldest First | Threaded View
KB6NU
User Rank
Freelancer
Re: DB-9, DE-9
KB6NU   1/24/2014 9:35:45 AM
NO RATINGS
Hmmmmm. That makes sense, too. Now that you mention it, I do recall seeing D connectors with those power pins.

MeasurementBlues
User Rank
Blogger
Re: DB-9, DE-9
MeasurementBlues   1/24/2014 8:53:45 AM
NO RATINGS
@KB6NU

The letters actually refer to the connector shell size and are really independing of the number of pins. For example, a DB shell could have fewer than 25 pins. Some have two or even three heavy pins (one for power, 2 for return) and some signal pins. The reason the the 9-pin is designated DE is because it was developed after A, B, C, and D, sizes.

KB6NU
User Rank
Freelancer
Re: DB-9, DE-9
KB6NU   1/24/2014 8:02:12 AM
NO RATINGS
That's amusing. Despite using those connectors for longer than I care to mention I never knew that. It's amusing how the letter and number are redundant, too.

MeasurementBlues
User Rank
Blogger
DB-9, DE-9
MeasurementBlues   1/16/2014 1:59:36 PM
NO RATINGS
Officially called DE-9? (See page 3)

That's what I thought until about a year ago. Everybody thinks DB-9, DB-25, etc. but no.





EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Tiny Kickstarter MCU Board Provides 'Smart Fusion' for IoT Systems
Max Maxfield
2 comments
Just a few minutes ago as I pen this words, I received an email from my chum Mike Hibbert, who is a columnist for the computer and electronics hobbyist magazine Everyday Practical ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
20 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
15 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
46 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)