Specifications

C-16
Reference Guide
Model No.
Running Head
UNI
User Network Interface
User card
A Voice card, Data card, or Alarm card.
VBR
Variable Bit Rate
VC
Virtual Channel
VCL
Virtual Channel Link
VP
Virtual Path
VPC
Virtual Path Connection
WAN Card
Wide Area Network Card (one of the cards for this system).
wideband
A bandwidth equal to many individual channels
X.50
CCITT (ITU) standard data transmission protocol.
yellow alarm
Remote alarm on a T1 line. A major failure has occurred at a remote location.
ZCS
Zero Code Suppression