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With today's equipment, crossover cables are generally not needed as most equipment supports auto-negotiation along with auto MDI-X to select and match speed, duplex and pairing. With 100BASE-TX hardware, the raw bits, presented 4 bits wide clocked at 25 MHz at the MII, go through 4B5B binary encoding to generate a series of 0 and 1 symbols ...
A car plowed into a crowd at a Christmas market in eastern Germany on Friday, leaving five people dead and more than 200 injured, dozens of them critically.A 9-year-old boy was among those killed ...
Today's Top U.S. News Story Trump administration plans to cut 80,000 employees from Veterans Affairs, according to internal memo The Department of Veterans Affairs is planning an “aggressive” reorganization that includes cutting 80,000 jobs from the sprawling agency that provides health care for retired military members More »
Generally, layers are named by their specifications: [8] 10, 100, 1000, 10G, ... – the nominal, usable speed at the top of the physical layer (no suffix = megabit/s, G = gigabit/s), excluding line codes but including other physical layer overhead (preamble, SFD, IPG); some WAN PHYs (W) run at slightly reduced bitrates for compatibility reasons; encoded PHY sublayers usually run at higher ...
By 2001, prices for Fast Ethernet cards had fallen to under $50. By 2003, Wi-Fi networking equipment was widely available and affordable. Due to the immense demand for high-speed networking, the low cost of Category 5 cable , and the popularity of 802.11 wireless networks, both 10BASE2 and 10BASE5 have become increasingly obsolete , though ...