GPIB Connector Diagrams, Mechanical Drawings

Several pages have been added to hold military CID [Commercial Interface Document] paper mechanical drawings for the IEEE-488 connector, GPIB [General Purpose Interface Connector].

The main link is off the top level HPIB Description page, to IEEE488 CID Mechanical Drawings. Here are the new pages, that carry the CID drawings:
A-A-55094,
A-A-55138,
A-A-55139,
A-A-55140,
A-A-55141,
A-A-55144,
A-A-55145,
A-A-55146.

These page show the mechanical drawing for the connector, and provide no other data other than the specification title. The purpose of the page is to hold the connector picture or gif and that's it.
The page addition to the site map is coming soon.

Manufacturers of RF Twinax Connectors

I added a new page that contains the definition of a Twinax connector. Remember it's a new page and contains little data. The link is off the RF Radar Terms section. The link was also added to the site map today.

Remember because so many sites relay on hits from search engines, adding pages may not help a web site. A new page may place well in a search for some terms but because it takes three months to get a page rank may not place well for many terms ~ which is why they get up-loaded as the page is generated.

Even as new pages are added and older pages are up-dated, site hits are down this week. Page visits are down at least 300 per day this week, looks like about 7,800 visits per day ~not page views. It must be common when so many sites depend on search engine traffic. Regardless of what you do the search engine may bring in less traffic. I think interfacebus.com takes in 75% of its traffic from search engines. A small reduction in search engine traffic results in a major drop of visitors. I see it all the time........

Also up-dated the manufacturers of Connector Dust caps page.

Web Activity and site promotion

The site interfacebus.net is still getting more and more visitors, as more pages are added. Looks like about 15 pages reside on the web site. Pretty tiny compared to the 1,600 pages on interfacebus.com.

This blog has more pages than the dot net site. Only 86 people have reached interfacebus.com from interfacebus.net this year.
Any how; there's a large increase in visits, but the site is not that large so I don't really expect to see any returning visitors.

What is the Minimum Serial Bus Lenght

The minimum distance for the next closest bus node [in a serial bus] is determined by the length of the wire and the signal reflection time. A quick link for minimum Node length, or keep reading the blog ...... but give me a day. The link is off the RS485 page [EIA485].

The maximum bus distance is almost always provided or can be determined, but you never see the minimum distance. And I never noticed......

Google News Groups Addition

I added a link to Google News Groups for both serialphy and interfacebus. The new Google Group will provide Web 2.0 interaction for the web site, in addition to any blog interaction that is already provided.

Google News Groups are an improved version of the existing usnet news groups. Use the link to the left to find the new Google Group (May be upper left or lower depending on which page you are viewing).

A few new postings were also added to the serialphy website.

Planned Page Additions

Figured I would add a page that indicated web pages that are in the planning stage. Adding a planning page should stop the upload of pages with little or no content. Sometimes new pages get lost before full content can be added.

I'll leave the pages on the new content page until their ready for prime time. So new page additions will not be listed here [the blog] until they leave the new content page. Any page listed could just be a blank html page to hold the address.:
www.interfacebus.net; Planned Page Additions,
www.interfacebus.com; Planned Pages,
www.serialphy.com; Planned New Pages.

Finding these page should be a tad hard, but I can't stop the search engines finding them. In fact, that's the point of adding the page. So the search engine do find them and then indexes the page. So by the time I do add content to the page it may have a page rank, which takes a page three months to get. But, at the same time the page should not come up in a web search because the pages have no content. A Win / Win situation. Can you say SEO.......

New Graphic Pages added

Two new pages were added to serialphy. Both pages have been added to hold a graphic file.

One page was generated to hold the pulse wave shape graphic [linked off 'R' Definitions]. The other page is a graph of attenuation of 24 AWG Wire over Frequency [linked off 'A' Definitions].

There was a time I would just upload the graphic as a picture file. But When I noticed another site also linking to those same pic files [and leaching off my server bandwidth], I placed them on there own pages. The picture file that were being copied using my server bandwidth were replaced with a site banner of the same name.

Not all countries have found www.serialphy yet, as you see from the attached graphic [last 30 days].