Lucent Technologies Release 8.2 Manual Do Utilizador
time slot
Glossary
Administration for Network Connectivity
CID: 77730
555-233-504 — Issue 1 — April 2000
488
time slot
64 kbps of digital information structured as eight bits every 125 microseconds.
In the switch, a time slot refers to either a DS0 on a T1 or E1 facility or a
64-kbps unit on the TDM bus or fiber connection between port networks.
In the switch, a time slot refers to either a DS0 on a T1 or E1 facility or a
64-kbps unit on the TDM bus or fiber connection between port networks.
trunk
A communication line linking two switches (public-network, PBX, or
MMCX-server).
MMCX-server).
trunk group
A collection of trunks that all terminate at the same public switch, PBX, or
MMCX server.
MMCX server.
U
UDP
1. User Datagram Protocol — Transport layer; Connectionless, unreliable, fast.
2. Uniform Dial Plan.
UNP
Uniform numbering plan
unrestricted data
, because it can be corrupted
by
. Digital data is unrestricted data.
unrestricted facilities
PRI spans that use non-ZCS
, such as
, end-to-end.
.
V
VCI
virtual channel identifier. ATM is a connection-oriented service that
sets up a virtual circuit between the transmitter and the receiver. The two
endpoints negotiate an agreed route through the network before sending any
data. VCI and VPI together constitute the virtual circuit number that identifies
this route.
endpoints negotiate an agreed route through the network before sending any
data. VCI and VPI together constitute the virtual circuit number that identifies
this route.
virtual channel identifier
.