digital circuit multiplication equipment (DCME)

Digital Circuit Multiplication Equipment (DCME) is a multiplexing technique that optimizes the available bandwidth of transmission systems.

DCMEs are circuit multipliers that were used years ago in high-cost transmission systems used for voice communications, such as submarine cables or satellite links.

Line multipliers make use of pauses in speech communication and transmit additional information during these pauses. Statistically, a telephone conversation consists of about 60% pauses in speech, a fact that DCME technology takes advantage of.

The interface features and performance specifications of DCME are described in the ANSIT1 reference lists at T1.309-1990. In addition, the International Telecommunication Union( ITU) addresses line multiplier sizing in Recommendations E.528 (02/96).