Abstract: In a device (ADSL_MODEM2) having Ethernet interfacing capability and ATMForum interfacing capability, a single connector (ETH/ATMF_CON) with four pairs of pins (P1, P2, P3, P4) is provided. This connector (ETH/ATMF_CON) is able to interface with an Ethernet plug and to interface with an ATMForum plug.

Abstract: A telecommunication transmitter (TU) for a multi-carrier transmission system of the Digital Subscriber Line [DSL] type and which includes a coding circuit (MMC) able to generate “symbols” derived from carriers (Cl-Cn) modulated by incoming data, and a line driver circuit (LDC) to amplify these symbols. When idle data are received, the power dissipated in the transmitter is reduced because the symbols are then merely derived from a few or even a single carrier (the “pilot tone”) instead as from all the available carriers. The power dissipated is even more reduced because the line driver circuit is formed by a parallel connection of a high voltage but low efficiency (LL) and a lower voltage but higher performance (LH) line amplifier. The higher performance, and thus less power consuming, amplifier (LH) is used when idle data are received at the input (IN).