Glossary:

ATIS Telecom Glossary

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point-to-point configuration

1. A configuration where there are only two access points. [T1.620-1991]
2. A communication circuit having only two nodes.

pointer

1. A function indicator that (a) is under the direct control of a computer operator, and (b) is used to indicate displayed information, to highlight data, to identify areas of interest, to serve as a graphic display cursor, and/or to select icons.
2. In computer graphics, a manually operated functional unit used to specify an addressable point.
3. In computer… (Read More →)

pointers

A single octet that indicates the beginning of each mandatory variable parameter and optional part. [TI.110-1987]

Poisson distribution

A mathematical statement of the probability that exactly k discrete events will take place during an interval of length t, expressed by where k is a non-negative integer, e is the base of the natural logarithms (e2.71828), is the constant rate that the events occur, and t is the expected number of events occurring during an interval of length t.

polar operation

A telegraph system in which marking signals are formed by current or voltage pulses of one polarity and spacing signals by current or voltage pulses of equal magnitude but opposite polarity (bipolar signal).

polar orbit

An orbit for which the angle of inclination is 90o.
Note: A satellite in polar orbit will pass over both the north and south geographic poles once per orbit.

polar relay

A dc relay in which the direction of movement of the armature depends on the direction of the current flow.

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