With respect to an electrical and especially an electronic device, to turn on or otherwise connect its primary source of electric power.

1. For optical fibers, a class of graded-index profiles characterized by where n(r) is the nominal refractive index as a function of distance from the fiber axis, n1 is the nominal refractive index on axis, n2 is the refractive index of the homogeneous cladding (n(r) = n2 when r ), is the core radius, and g is a parameter that… (Read More →)

The vector obtained in the direction of a right-hand screw from the cross-product (vector product) of the electric field vector rotated into the magnetic field vector of an electromagnetic wave.
Note: The Poynting vector, with transmission media parameters and constants, gives the irradiance and direction of propagation of the electromagnetic wave. Mathematically: P = E × H . [From Weik… (Read More →)

1. pulse-position modulation,
2. parts per million.

1. point-to-point,
2. point-to-point protocol.

Point-to-Point Protocol over Ethernet

Pay Per View

Provider Provisioned Virtual Private Network

Peak Rate

A slot dedicated by the head-of-bus function for transferring isochronous service octets.