PXI Signal assignments

I separated the pinout data for the P2 connector on the PXI interface bus. I left the PXI System Slot pinout on its current page address, but I moved the Peripheral Slot pinout onto a new page. The move was made to reduce the page size, so instead of one 30k byte page, I now have two 15k byte pages. Only helps if a person needs one of the other pinout tables, but not both. I updated the PXI P1 pinout table 'page' by adding a new Google search bar. Of course on the main page that provides a description of the PXI bus, I added the new link to P2 Peripheral slot signal assignments.

Along the same lines as some of the previous posts to reduce server bandwidth I up-dated a few other pages. In both cases I deleted some html font tags embedded with in the pin-out tables to reduce the page size. The obsolete IBM Personal Computer bus, Micro Channel Architecture, and the obsolete EISA bus.

Each page received a few hundred page views last month. Reduced now by a few k-bytes, or 500k bytes per month. I'm suppressed those two pages were getting that many hits, but deleting the font tags are transparent ~ you can't tell a change was made.

Oh, PXI means cPCI for Instrumentation.

Waiting on a page rank

I'm out checking page rank for new pages that were added last year. I started with Jan of last year, so the new pages are listed in the older 'what's new to the site' blog, which happens to pre-date this blog.

I always tell people it takes 4 months to get a page rank, never really being sure if that may mean once a quarter.

Pages added in Aug with no page rank:
Definition of Coaxial Cable.
Definition of SMA Connectors.
Definition of BNC Connectors.

Pages added in Sep. with no page rank:
Volatile Memory ICs.

Pages added in Oct. with no page rank:
Protocol Acronyms.
Networking Acronyms.

Of course there have been other new pages, but most of these pages have been out there for longer than 4 months. Maybe it took the spider another 30 days to find the new page, so the pages from Aug should be getting a ranking some time this month. I should be receiving a page ranking for 3 to 5 new pages each month for almost the rest of the year ~ even if I stop adding additional pages.

However, on a side note, a new page does not mean new visitors. The coax cable page has only seen 8 page views so far, over the last 5 months. The BNC page has only seen 22 page visits. A page rank may help these pages, but just because I generate a new page does not mean any one wants to read it or is searching for it...

Again this blog now provides all new page additions to the web site, for the last three months.

Semiconductor Diodes

There are a number of pages that cover Semiconductor Diodes on the web site. The main page provides a listing of Manufacturers of Semiconductor Diodes. With a link to a listing of Manufacturers of Varactor Diode Devices, Manufacturers of Zener Diodes, Manufacturers of LED components, followed by a list of Circuit Protection Devices.

Some times I need a bit more than just a listing of manufacturers. This page provides a list and definition of different types of diodes. Which gives a small description of each type of semiconductor diode.

There's another page that provides detailed definitions for Zener Diode Terms. Followed by a page giving definitions for LED devices, who can remember which is the longer lead on a through-hole device.

I'll bet there are other pages that cover diodes, like the related page which details ESD Terms. A quick search finds LED Materials vs Wavelength [color], and a Visible Spectrum Graph. Also a table that indicates how to Derate a Diode based on Junction Temperature.

Still more, one for Multi-Colored LED Manufacturers. That page would cover two and three colored LED's. How about one that covers RF Switch Manufacturers, which happen to be diodes inside an RF case.

Of Course LED stands for; Light Emitting Diode....... Hmm, lets not forget Super Bright LED Manufacturers, and Light Pipe Manufacturers. Or, Manufacturers of LED Drivers.

In any case there are many pages that deal with diode manufacturers or diode terms. All pages may not point to all of the other pages, but they can all be found by using the search engine located on the top of all the pages. Like this page that shows a graph for a Bridge Rectifier Circuit.