ground start


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Related to ground start: Loop start, Loop Start Trunk

ground start

[′grau̇nd ‚stärt]
(aerospace engineering)
A propulsion starting sequence of a rocket or missile that is initiated and carried through to ignition of the main-stage engines on the ground.

ground start

A method for seizing a phone line. Widely used by PBXs, the ring lead of the line (tip and ring) is momentarily connected to ground, and the CO detects the current. The CO grounds the tip lead of dedicated lines, which the PBX can test to determine if the line is dedicated for use. Contrast with loop start. See ground.
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References in periodicals archive ?
In addition to TIMS testing, the module combines the functionality of a butt set and a separate analog voice set to place or receive calls of loop start, ground start and DID circuits.
The system's configuration flexibility is also defined by its support of several types of CO lines including loop start, ground start, Direct Inward Dial and Tie Lines.
Marathon also offers 2- and 4-wire E&M, FXO, FXS, AC-15, Ron/Tron, ground start, loop start, immediate start and wink start protocols.
The FXO card provides both Loop and Ground Start operation for customers wanting to extend local 2-way dial tone lines to a remote PBX.
Typical applications for the PVT312 Series include on/off hookswitch, ringer injection, ground start and general switching.