Glossary
Glossary-18
255-700-243
PacketStar
®
PSAX 12-Port Medium-Density DS1 Multiservice Module User Guide
, Issue 1
Release 8.0
debouncing
Bouncing
is the tendency of any two metal contacts in an elec-
tronic device to generate multiple signals as the contacts close
or open;
debouncing
is any kind of hardware device or soft-
ware that ensures that only a single signal will be acted upon
for a single opening or closing of a contact.
demodulate
To recover a signal from a modulated carrier that has essen-
tially the same characteristics as the original modulating sig-
nal.
designated transit lists
See DTL.
destination address
The address portion of the packet that identifies the destina-
tion node.
device tree
The left pane in the main
AQueView
window, which allows a
user to access configuration and provisioning menus for all
open PSAX devices.
DHPVC
Dual-Homed Permanent Virtual Circuit. A virtual circuit that
is connected to the network through two independent access
points.
digital loop carrier
See DLC.
digital loop carrier system
A system that concentrates analog local loop lines, digitized,
and multiplexed calls for transmission to the Central Office.
digital service interface
An interface that enables the implementation of digital ser-
vice circuits with the network interface. It is defined at a point
where the signal has not yet been reshaped into a standard
digital signal.
digital signal processor
See DSP.
digital signal, level 1
See DS1.
digital signal, level 3
See DS3.
digital signal, level zero
See DS0.
digital subscriber line access multi-
plexer
See DSLAM.
digital subscriber lines
See DSL.
DIP switch
Dual In-line Position switch. A small switch used to select the
operating mode of a device.
direct broadcast satellite
See DBS.
direct current
See DC.
direct serial connection
A direct connection through a serial port to another com-
puter.
DLC
Digital Loop Carrier. Network transmission equipment used
to provide pair gain on a local loop, by deriving multiple
channels, typically 64 Kb, from a single 4-wire distribution
cable running from the Central Office to a remote site.
Содержание PacketStar PSAX
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