Telecom and Networking

GarrettCom Converter Teardown

The main components are BCM5325A2KQMG Ethernet switch, BCM5221A4KPTG Ethernet PHY, HFBR5961LZ fiber transceiver and LM2591HVT-3.3 simple switcher power supply. This looks like quite normal small Ethernet swich design. There is 5 port Ethernet switch IC handling copper ports directly and fiber through PHY IC. This device I opened was broken on power supply circuit. The →

CES 2015: The Year of Infrastructure – IEEE Spectrum

http://spectrum.ieee.org/tech-talk/consumer-electronics/gadgets/ces-2015-the-year-of-infrastructure?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+IeeeSpectrum+%28IEEE+Spectrum%29&utm_content=FaceBook Posted from WordPress for Android →

Telecom trends for 2015

In few years there’ll be close to 4bn smartphones on earth. Ericsson’s annual mobility report forecasts increasing mobile subscriptions and connections through 2020.(9.5B Smartphone Subs by 2020 and eight-fold traffic increase). Ericsson’s annual mobility report expects that by 2020 90% of the world’s population over six years old will have a phone.  It really talks about the →

ITU EMF Guide

http://emfguide.itu.int/emfguide_m.html#page2_1 Are RF signals dangerous? Check the facts. Posted from WordPress for Android →