Voice frequency primary patch bay
Encyclopedia
In telecommunication
, a voice frequency primary patch bay (VF) is a patching facility that provides the first appearance of local-user
VF circuits in the technical control facility
(TCF).
The VF primary patch bay provides patching, monitoring, and testing for all VF circuits. Signals will have various levels and signaling schemes depending on the user terminal equipment
.
Telecommunication
Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
, a voice frequency primary patch bay (VF) is a patching facility that provides the first appearance of local-user
User (telecommunications)
In telecommunications, a user is a person, organization, or other entity that employs the services provided by a telecommunication system, or by an information processing system, for transfer of information....
VF circuits in the technical control facility
Technical control facility
In telecommunication, a technical control facility is a physical plant, or a designated and specially configured part thereof, that contains the equipment necessary for ensuring fast, reliable, and secure exchange of information, typically includes distribution frames and associated panels,...
(TCF).
The VF primary patch bay provides patching, monitoring, and testing for all VF circuits. Signals will have various levels and signaling schemes depending on the user terminal equipment
Terminal equipment
In telecommunication, the term terminal equipment has the following meanings:* Communications equipment at either end of a communications link, used to permit the stations involved to accomplish the mission for which the link was established....
.