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Computer Network – RJ45 Connectors

RJ45 Crimped
RJ45 Crimped

RJ-45 connectors

RJ45 is a type of registered jack. The registered jack specifies the physical male and female connectors as well as the pin assignments. RJ45 features 8 pins and is the standard connector for Ethernet based networks. We can also find it on ISDN, and T1 connections. Ethernet is the standard media for the VOIP phones so we can find it used with modern digital phone systems. The RJ11 male connector, (standard telephone connector), fits perfectly into an RJ45 female connector being a little narrower, which is why many companies have deployed data networks only. The middle pair only is used for the telephone connection. There are different RJ45 male connectors for various cables.

  The male RJ45 are very cheap but they are prone to various problems.
Shielded RJ45
Shielded RJ45
The locking tab is prone to breaking. Here are some tricks to avoid this: buy the connectors with the locking tab curved down so it avoids the snagging. If you can’t find the cleverly designed connectors use boots to avoid snapping the tabs.
Snagless RJ45
Snagless RJ45

Snagless RJ45
Snagless RJ45

Snagless RJ45
Snagless RJ45

Snagless Shielded RJ45 Male
Snagless RJ45 Sheilded


There are RJ45 specially designed for solid cable, for stranded cable, for STP cable.
Rj45 Male Compare Rj45 Male Compare Use only the appropriate connector for the cable you install. Using an RJ45 for solid wire with stranded wires, or the other way around, will cause poor contacts, hence a bad connection.
Use a good quality crimper that doesn’t press on the tab when you crimp the connector.
Crimping a male RJ45 is not easy. The operation requires dexterity attention and training. If you want to make your life easier, you can use wire guides that come with some packages. Practice a lot and you won’t need the guides.
Check the “How to make a patch cord” post, for a detailed, step by step article with pictures. (coming soon)

Internet Marketing – 16 Ways to Get Back-links

Why is Backlinking important for Internet Marketing

Backlinks are incoming links to a website or web page.

Inbound links were once important as a primary means of web navigation;

Today their significance has diminished as the emergence of search engines changed the way WEB is accessed. Today, the importance of backlinks lies in search engine optimization (SEO). The number of backlinks is one indication of the popularity or importance of that website or page. Search Engines use backlinks as a parameter to determine the Page Rank of a webpage. They are still a source of traffic but is not as important as search results traffic direct traffic or advertising traffic.

Everybody has now recognized the importance of backlinking and it is an important aspect of the Internet Marketing. Some companies spend a lot of money trying to improve linking popularity and consequently Page Ranking.
There are various types of linking methods used by the Internet Marketers:

  • Reciprocal link
    Trade reciprocal links with other webmasters using a link exchange website or a script on your site. Reciprocal links do not carry the same weight as before, but it is still a good way to improve link popularity.
  • Article Marketing
    Article Marketing is a great way to obtain one-way links. Make sure you create a good resource box containing information about you and your website and attach that resource box to your articles. Distribute this to as many article directories as you can.
  • Forum signature linking
    Post on forums and share your knowledge. Create a signature that contains your website’s address. Posting on do-follow forums can be an efficient method. Do not spam forums, as this will blacklist your IP address, and your posts will be removed.
  • Blog comments
    Commenting on other’s webmasters’ blogs is an efficient way to get backlinks. Do not spam and post valuable comments that could benefit the community.
  • Image sharing
    (providing free quality images for a link-back)
  • Directory listing
    List your website to web-directories. DMOZ and Yahoo Directory are the two best ones and being listed here gives your site many points in rankings calculation.
  • Post press releases
    Underutilized method, great for a short time span popularity gain in Search Engines.
  • Blogging
    Very effective since you decide how many links you want to post on your blog, but can be time consuming.
  • Link-bait
    (Writing great article to which other webmaster will link to. Slow method for link building but is the most natural and provides the most stable back-links.)
  • Social Bookmarking
    The more bookmarked your site the better your rankings. Submit at the most popular Bookmarking sites and ask your friends to bookmark you.
  • Buying links from a web 2.0 site
    There are plenty of web sites that will sell you links. Beware that this is against the T.O.S. of search engines.
  • Video posting
    Posting videos to youtube, metacafe, etc… and attach your website’s link to it. This will not only provide you with a backlink, but will bring you traffic as well.
  • Social media links
    Links listed to Facebook or Twitter will convince Search Engines of the popularity of your page.
  • Create a WordPress plugin
    A great way to create back-links, but it is expensive. If you are a PHP programmer, and would like to start such a project, contact me.
  • Create a WordPress or Blogger template and give it free.
    A link to your website will be included in all of the websites that use your theme or template.
  • RSS publishing

As a rule for getting your backlinks, do not focus on one method. Use all of them because the diversity of links and link types will bring the value and will suggest Search Engines that the links are naturally built.

Link building won’t do anything for you if you don’t have content. There is no reason to conduct an Internet campaign for a website that doesn’t have any content.