| A
digital switch is a switch through which
it is possible to do time-division-multiplexed
Switching of digitized signals. Implementation
is accomplished by the interchange of time
slots between input and output ports on
a sequential basis under the direction of
control systems. The control systems may
be automatic, semiautomatic, or manual.
It is a
mean of supporting multiway conferencing
using the signals in their digital format
without converting them to analog. Digital
switches permit multiple users with similar
codes to conference generally with voice-activated
switching. Some of the examples of a digital
switch are: A private branch exchange (PBX)
is a digital switch; a centrex is a digital
switch at the central office that manages
switching for the private company from the
central office. |
