TDM Full Form Name
Full Form of TDM:
Time Division Multiplexing
TDM Full Form is Time
Division Multiplexing. This is one of the most widely used
methods of transmitting signals, especially in telephony. The GSM network of
telephones uses TDM. In TDM, all the signals use the same frequency but at
different times. In this technique, the same link or fiber is used to transmit
signals belonging to multiple users. The users take turns to use the link /
fiber to transmit signals. So each user is allocated fixed time slots where his
data is either received or sent.
Both the multiplexer and the demultiplexer
work in sync so that both switch over to the next user simultaneously. A timely
synchronizing signal or distinguishing identifier is usually required so that
the receiver can tell which user’s data is currently being transmitted or
received in the shared common line. The time slots can be divided into
asynchronous way or a synchronized way depending on the requirement.
In synchronous TDM, all users’
clocks are necessary to be aligned with some reference clock, which could be
provided by one of the involved systems. In a synchronous TDM, the timeslots
are random. They are assigned dynamically as needed. Generally for digital
signals use TDM. But more recently, techniques are developed to transmit analog
signals using TDM.