Contains all of the control and switching elements for a networking system. It is housed with a mobile telephone switching office, which is the site of the switch and other processing equipment serving a cellular system.
In fiber optics, a path followed by light waves and/or a specific polarized electromagnetic signal wave of light or RF frequency.
Modulator/Demodulator. A device that changes a digital data signal into a form suitable for transmission over an analog telephone line. Converts signals from one form to another form compatible with another type of equipment.
A metal and plating combination recommended for high current applications with low insertion/withdrawal cycles. Conductivity is 65%.
A system made up of components or modules that can be assembled in various combinations, according to the requirements of a particular application. Modular connectors contain similar or identical sections that are fitted together to provide the required connector size and type.
The process of varying the amplitude (AM), frequency (FM), phase (PM) or pulse width (PWM) of a carrier (radio) wave to convey intelligence such as music, television, speech, or other information.
See Polarization.
Automotive terminal product.
Tools used to form raw plastic into connector housings. Molds are usually dedicated to a single product group. The different types of molds used at Premium line are: custom, pocket, discrete, and expandable.
A device used to hold pocket molds that do not have their own bases.
Also called core pins. Components of a mold that are assembles together to form the mold. There may be hundreds of small pieces. Each is referred to as an insert or core pin. They can be replaced individually as they break or wear out. They are also called mold spares.
In membrane switch technology, a hybrid assembly placed in a molded housing that may include a molded top.
A connector molded on either end of a cord or cable.
The process by which connector housings are manufactured. Raw plastics are converted into housing, usually by a process called injection molding.
This process uses molds and molding machines. The capacity of these machines is usually measured in tons. Small machines are rated 25-45 tons; medium machines are rated 70 tons; large machines are rated 100-125 tons.
Originally, a material manufactured from a coal-tar compound developed in the late thirties and used in connectors and terminal blocks.
Automotive terminal product.
Automotive terminal product designed for harsh environments.
A thousand circular mils.
A switch that returns to its normal condition when the actuating force is removed.
A single strand filament, as opposed to a braided or twisted filament.
A single chip of silicon or other semiconductor material into which an integrated circuit has been inseparably formed.
A small, chemically difunctional, molecule that is capable of reacting with either itself or other compatible difunctional molecules to form large, long, chain-like molecules termed macromolecules or polymers. The word "polymer" means "many" (poly-) "repeat units" (-mer).
An optical fiber that supports the transmission of only one mode of a given wavelength of light based on the design of the fiber, its numerical aperture, and the polarized electromagnetic solution to Maxwell's equations for given boundary conditions.
Minimum Order Quantities. The smallest quantity that can be ordered directly from Premium line , without using a distributor.
Metal-Oxide Semiconductor
A printed circuit board that is generally the main PCB in a system.
Cable entrance of a connector barrel.
See also Bellmouth.
Distance or angle the actuator travels in returning from operating position to reset position.
Motion Pictures Experts Group. Refers to a standard for compressing and displaying video graphics information for a PC.
Multiple Parallel Processor. A computer architecture scheme in which multiple processors are housed in the same package and are used to perform various computer operations simultaneously.
Moisture Resistant, Flame Retardant finish.
See MIL STD.
Membrane Switch Custom Design Sheet
Medium Scale Integration. An IC containing at least 50 but not more than 100 transistors.
Mean Time Between Failures
Mass Termination Insulation Displacement Connectors.
Se also IDT.
See Multiple Termination Mode.
Thermoplastic insulated machine tool wire. 90 degrees to 105 degrees C, 600 in.
A type of stamping die that acts on more that one terminal/pin per stroke of the press. It usually acts on two, four, six, or ten pieces per stroke.
In membrane switch technology, a technique for manufacturing multiple switches at a time.
A package that contains several chips on a substrate.
More than one conductor within a single cable.
In fiber optics, a coherent bundle of fused single fibers that behave mechanically like a single glass fiber.
A printed circuit board in which three or more layers of conductive patterns are laminated together. The layers are separated by sheets of insulating materials. The interconnections between layers is accomplished using plated through-holes.
A system that provides more than one output medium. An example is a personal computer that outputs both video and sound.
An instrument, often portable, designed to measure two or more electrical quantities, such as volts, amps, and ohms.
Transmits or emits multiple modes of light.
A fiber that supports transmission of more than one mode of a given wavelength of light based on the design of the fiber, its numerical aperture, and the polarized electromagnetic solution to Maxwell's equations for given boundary conditions.
An arrangement of contacts such that the circuit is broken simultaneously in several places.
A combination of two or more conductors cabled together and insulated from one another and from sheath where used. Special cable are referred to as 3-conductor cable, 7-conductor cable, 50-conductor cable, etc.
Multiple Termination Module (MTM)
A heat activated solder termination device with a heat-shrinkable dielectric used for gang termination of flat conductor cable. This technique insulates and environmentally seals the terminations.
A circuit that handles two or more signals at the same time
Combining information signals from several channels into one single optical channel for transmission.
The parasitic capacitance (Cm) established between two electrical circuits when voltages in one circuit create an electrical field that affects the second circuit. It is usually measured in Farads.
See also Mutual Capacitive Coupling Coefficient.
Mutual Capacitive Coupling Coefficient
The measure of degree of the electrostatic coupling between two conductors.
This is a dimensionless parameter and is defined as follows : Kc = Cm / sqrt(C1 x C2) where Cm is defined (above) as the mutual capacitance; and C1 and C2 are capacitances of the two respective lines.
The parasitic inductance (Lm) established between two electrical circuits when the current in one loop creates a magnetic field that affects the second loop. It is usually measured in Henries; and can be positive or negative depending whether the induced magnetic field reinforces or diminishes the individual magnetic fields of the conductors. Line Inductance is a special case of Mutual Inductance.
See also Inductance (Line).
Mutual Inductive Coupling Coefficient
The measure of degree of magnetic coupling between two conductors. It is a dimensionless parameter and is defined as follows: Km = Lm / sqrt(L1 x L2), where Lm is defined above, and L1 and L2 are the external inductances of lines 1 and 2 (i.e., between the signal conductor and the ground current return conductors of the line), respectively.
See Multiplexer.
Millivolt, or one-thousandth of a volt.
MX is a Premium line trademark and relates to a .050" Ribbon Cable Connector System.
