Panasonic 1200N - Manual (Page 246)

V Glossary
B-84 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
VCO
Voltage Controlled Oscillator: An oscillator whose clock frequency is determined
by the magnitude of the voltage presented at its input. The frequency changes when
the voltage changes.
VD
Virtual Destination. Refer to VS/VD.
VF
Variance Factor: VF is a relative measure of cell rate margin normalized by the
variance of the aggregate cell rate on the link
Virtual Channel Switch
A network element that connects VCLs. It terminates VPCs and translates VCI
values. It is directed by Control Plane functions and relays the cells of a VC.
Virtual Path Switch
A network element that connects VPLs. It translates VPI (not VCI) values and is
directed by Control Plane functions. It relays the cell of the VP.
VLAN
Virtual Local Area Network: Work stations connected to an intelligent device
which provides the capabilities to define LAN membership.
VMEBUS
VEASA Module European Bus: A 32-bit bus developed by Motorola, Signetics,
Mostek, and Thompson CSF. Used widely in industrial, commercial, and military
applications with over 300 manufacturers of VMEbus products worldwide.
1
VP
Virtual Path: A unidirectional logical association or bundle of VCs.
VPC
Virtual Path Connection: A concatenation of VPLs between Virtual Path
Terminators (VPTs). VPCs are unidirectional.
1.Newton’s Telecom Dictionary