Here is teardown of one cheap power over Ethernet tester from eBay. It worked OK and did what it promised. It came with instructions that seem to be for a slightly different model witg more features. What is inside Circuit details. It has two sensing circuits: for end span and middle span power. I have →
https://blog.paessler.com/4-vital-tips-for-getting-the-most-out-of-traceroute Anyone – even users with zero networking experience – can run a traceroute. All you need is a command prompt and a destination device. Yet, despite how easy it is to use, its results are often misunderstood. To be able to make good use of traceroute for network troubleshooting, you need to understand two →
https://www.amihotechnology.com/lorawan-cellular-nb-iot-power-consumption-comparison/ The intent of this post is not to say which technology is better or worse. But, rather to show how Cellular IoT and LoRaWAN complement each other. Battery lifetime is by far one of the most important considerations for LPWAN applications because often it is very expensive to replace batteries physically. It will ruin →
https://techcrunch.com/2018/03/23/the-web-will-soon-be-a-little-safer-with-the-approval-of-this-new-security-standard Transport Layer Security version 1.3 promises to make encrypted connections on the web faster and more resistant to snooping. The approval of TLS 1.3 has been long in coming for four years. The IETF approval is a big step towards the standard being adopted by big companies, web services, and other, higher-level standards. You →
https://spectrum.ieee.org/tech-talk/telecom/wireless/teaching-an-artificial-intelligence-to-operate-a-telecommunications-network-isnt-possibleyet AI, which telecos have already leveraged in some situations, might be able to help solve some of communications service providers’ (CSPs) problems. But CSPs have been slow to adopt artificial intelligence, because the initial problems AI was developed to address didn’t really affect them. “There’s a lot of opportunity to use AI in the →
https://spectrum.ieee.org/telecom/internet/5g-is-in-danger-of-being-oversold It seems that 5G has become a technology savior. Proponents tout the poorly defined wireless technology as the path to virtual reality, telemedicine, and self-driving cars. But 5G is a buzzword unleashed by marketing departments. In reality, 5G is a term that telecommunications investors and executives sling around. Millimeter-wave spectrum is freely available for →
Last year I made a posting on Cheap fiber optic visual fault locator. It told about 1mW 5KM Red Light Pen Visual Fault Locator Fiber Optic Laser Cable Tester Meter puts out highly visible red light into a fiber optic cable that has ST, SC and FC optical connectors.The universal fiber connector worked well with single-mode →
https://www.edn.com/design/test-and-measurement/4460312/High-speed-digital–112-is-the-new-56 EDN magazine reports that at DesignCon 2018, 112 Gbps was all over the conference and exhibit hall. Even just a year ago, engineers were still talking more about 56 Gbps speeds than 112. This year, all agree that 56 Gbps speeds have been achieved. It’s time to move on. OIF-CEI 4.0, which included clauses →
https://www.edn.com/electronics-blogs/rowe-s-and-columns/4460291/NRZ-is-dead–but-not-everywhere PAM4 modulation is everywhere. “Five years ago, PAM4 was a concept” “PAM4 is being deployed everywhere except in short-reach links.” “DSP is enabling PAM4 optical channels” PAM4 has won the battle in fiber-optic and other medium and long-reach applications. →
https://spectrum.ieee.org/tech-talk/telecom/wireless/what-the-finnish-obsession-with-mobile-data-says-about-5g It seems that we really need 5G in Finland before 4G slows down too much due high use of it. Several factors make Finland a potential sandbox for 5G developers: the average person in Finland used about 20 gigabytes (GB) of mobile data in December 2017, a dramatic rise from the 2016 average of →