Telecom and Networking

PoE powered device PSU

With PoE (Power over Ethernet) technology, an Ethernet cable can carry power in addition to data. PoE can supply operating voltage to PoE compatible networked devices, such as a WLAN base station, an IP camera, a VOIP phone or IoT device. The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power

Uusiteknologia 01/2018

Uusiteknologia.fi is new Finnish language electronics and technology professionals magazine. In the newest issue have written articles on four topics (text in Finnish with short introduction in English). Here are the topics: USB-C: The USB Type C is the latest USB connector type especially for portable devices. The new USB version offers higher data rates

PoE tester teardown

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

4 Vital Tips for Getting the Most Out of Traceroute

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

LoRaWAN Cellular NB-IoT Power Consumption Comparison

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

The web will soon be a little safer with TLS 1.3

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

Mobile World Congress 2018: You Can’t Teach an AI to Run a Telecom Network—Yet – IEEE Spectrum

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

5G is in Danger of Being Oversold – IEEE Spectrum

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