Voice Frequency Primary Patch Bay

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.

 

<< PreviousWord BrowserNext >>
two out of five code
type 1 encryption
type 2 encryption
u interface
unavailability
uninterruptible power supply
universal time
abstract factory pattern
uplink
upt environment
upt number
upt service profile
user
user information bit
utility program
validation
variable length buffer
video teleconference
video teleconferencing unit
view
viewdata
virtual call capability
virtual circuit
virtual storage
virtual terminal
voice frequency
volt amperes reactive
vox
wafer (electronics)
wide area information server
warner exemption
waveguide
wave impedance
white facsimile transmission
white pages
wide area telephone service
wideband modem
wildcard character
wink pulsing
wireless mobility management
work station
x dimension of recorded spot
zero bit insertion
zero dbm transmission level point