Leapfrogging Cable television operators' practice of skipping over one or more of the nearest TV stations to bring in a further signal for more program diversity. FCC rules establish priority for carrying stations that lie outside the cable systems service area. Leaseback The practice by telephone companies of installing and maintaining cable television distribution systems, and leasing the facilities back to separate contractors for operation of the system. Leased Access On some systems, a public access channel for which programmers pay a fee for use and are permitted to sell commercial time in their programming. Also known as Leased Channel. Least Significant Bit In a binary code, the bit or bit position assigned to the smallest quantity or increment that can be represented by the code. Leakage The undesirable passage of signal over the surface of or through an insulator. LEC Local Exchange Carrier; a local telephone company, i.e., a communications common carrier that provides ordinary local voice-grade telecommunications service under regulation within a specified service area. LED Light emitting diode. LEDs are used in various applications ranging from being used as simple display indicators to use in fiber optics as a relatively low cost light source. Level A measure of the difference between a quantity or value and an established reference. Level Diagram A graphic diagram indicating the signal level at any point in the system. LEX Local Exchange; synonym for central office (CO). LGID
Leapfrogging Cable television operators' practice of skipping over one or more of the nearest TV stations to bring in a further signal for more program diversity. FCC rules establish priority for carrying stations that lie outside the cable systems service area. Leaseback The practice by telephone companies of installing and maintaining cable television distribution systems, and leasing the facilities back to separate contractors for operation of the system. Leased Access On some systems, a public access channel for which programmers pay a fee for use and are permitted to sell commercial time in their programming. Also known as Leased Channel. Least Significant Bit In a binary code, the bit or bit position assigned to the smallest quantity or increment that can be represented by the code. Leakage The undesirable passage of signal over the surface of or through an insulator. LEC Local Exchange Carrier; a local telephone company, i.e., a communications common carrier that provides ordinary local voice-grade telecommunications service under regulation within a specified service area. LED Light emitting diode. LEDs are used in various applications ranging from being used as simple display indicators to use in fiber optics as a relatively low cost light source. Level A measure of the difference between a quantity or value and an established reference. Level Diagram A graphic diagram indicating the signal level at any point in the system. LEX Local Exchange; synonym for central office (CO). LGID
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