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  2. DiSEqC - Wikipedia

    en.wikipedia.org/wiki/DiSEqC

    2-way DiSEqC switch 4-way DiSEqC switch with attached coaxial cables.. DiSEqC (/ ˈ d aɪ s ɛ k, d aɪ ˈ s ɛ k s i /; [citation needed] short for Digital Satellite Equipment Control) is a special communication protocol for use between a satellite receiver and a device such as a multi-dish switch or a small [1] dish antenna rotor.

  3. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    DCO-RLS (Remote Line Switch, controlled by hosts above) RLS 1000 (Pedestal mount cabinet 1000 lines in a subdivision - required multiple T-1's to host) RLS 4000 (Same thing, but 4000 lines) RLS (This has the ability in a host outage to make intra-cabinet calls) The line switches will also talk to AT&T SLC-96 pedestals – 96 lines on a ped

  4. Monoblock LNB - Wikipedia

    en.wikipedia.org/wiki/Monoblock_LNB

    Another adoption barrier for monoblock LNBs with 16 satellites positions is the need for a special shape of antenna dish, which restricts the market potential. Using DiSEqC 1.1 7-8 satellites positions from 24° spacing could be addressed and received with a lot of success by standard size and shape dish in some densely populated areas across ...

  5. Li-Fi - Wikipedia

    en.wikipedia.org/wiki/Li-Fi

    Li-Fi (also written as LiFi) is a wireless communication technology which utilizes light to transmit data and position between devices. The term was first introduced by Harald Haas during a 2011 TEDGlobal talk in Edinburgh.

  6. Low-noise block downconverter - Wikipedia

    en.wikipedia.org/wiki/Low-noise_block_downconverter

    In a C-band antenna setup, the transmission frequencies are typically 3.7–4.2 GHz. By using a local oscillator frequency of 5.150 GHz the IF will be 950–1,450 MHz which is, again, in the receiver's IF tuning range.

  7. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    The switches may be arranged so that they are in the same orientation for off, and contrasting orientations for on. [1] A "4-way" (intermediate) switch is a purpose built double pole, double throw (DPDT) switch, internally wired in manufacture to reverse the connections between the input and output and having only four external terminals. This ...