TDM
Noun
Meaning
(pharmacology) Initialism of therapeutic drug monitoring.
(gaming) Initialism of team deathmatch.
Source: en.wiktionary.orgExamples
A TDM circuit runs at a much higher signal bandwidth, permitting the bandwidth to be divided into time frames (time slots) for each voice signal which is multiplexed onto the line by the transmitter.
Below this level, standard TDM can be performed.
Each voice time slot in the TDM frame is called a channel.
For example, a European 120 channel TDM frame is formed by multiplexing four standard 30 channel TDM frames.
Higher order multiplexing is accomplished by multiplexing the standard TDM frames.
In European systems, standard TDM frames contain 30 digital voice channels (E1), and in American systems (T1), they contain 24 channels.