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Re: DB-9, DE-9
KB6NU   1/24/2014 9:35:45 AM
Hmmmmm. That makes sense, too. Now that you mention it, I do recall seeing D connectors with those power pins.

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Re: DB-9, DE-9
MeasurementBlues   1/24/2014 8:53:45 AM

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.

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Re: DB-9, DE-9
KB6NU   1/24/2014 8:02:12 AM
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.

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DB-9, DE-9
MeasurementBlues   1/16/2014 1:59:36 PM
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.

In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
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