Page 285 - Optical Switching And Networking Handbook

12_200023_Acronyms/Bates 1/17/01 10:10 AM Page 270

270 Acronyms

QoS Quality of Service
QPSK Quadrature Phase Shift Keying
RBB Residential Broadband
RBOC Regional Bell Operating Company
RF Radio Frequency
RFC Request for Comment
RG Residential Gateway
ROI Return on Investment
RSOH Repeater (or Regenerator) Section Overhead
RSVP Resource Reservation Services Protocol
SAN Storage Area Network
SAR Segmentation and Reassembly
SDH Synchronous Digital Hierarchy
SONET Synchronous Optical Network
SPE Synchronous Payload Envelope
STS Synchronous Transport Signal
STS-N Synchronous Transport Signal level N
TCP/IP Transmission Control Protocol/Internet Protocol
TDM Time-Division Multiplexing
TE Terminal Equipment
TIA Telecommunications Industry Association
TS Transport Stream
TUG Tributary Unit Group
UNI User Network Interface
URL Uniform Resource Locator
VC Virtual Container
VDSL Very-high bit rate digital subscriber line
VoD Video on Demand
VoIP Voice over Internet Protocol
VPN Virtual Private Network
VSB Vestigial Sideband

VT Virtual Tributary