Abstract: An apparatus (D) is dedicated to processing E1 data frames in communications network equipment (ETPL) including at least one E1 line interface unit (LIU1). The apparatus (D) includes a processor adapted, on receiving from at least one E1 interface unit (LIU1) at least one E1-type frame addressed to a given E1 destination port, to encapsulate that E1-type frame in a payload data field of an Ethernet frame in order to send it to an Ethernet destination port providing access to the given E1 destination port.

Abstract: An apparatus (D) is dedicated to processing E1 data frames in communications network equipment (ETPL) including at least one E1 line interface unit (LIU1). The apparatus (D) includes processor means adapted, on receiving from at least one E1 interface unit (LIU1) at least one E1-type frame addressed to a given E1 destination port, to encapsulate that E1-type frame in a payload data field of an Ethernet frame in order to send it to an Ethernet destination port providing access to the given E1 destination port.

Abstract: A switch (SW) for a time division multiplex communications network comprises line boards (LBi) each having a switching interface (SI) connected to TDM links (TL) for switching TDM frames of a selected type including time division multiplexed time slots and each associated with a TDM transmission channel. Each switching interface (SI) includes processing means (PM) for grouping time slots contained in the TDM frames received over at least one of its TDM links (TL) and including the designation of the same destination port and then integrating them into a composite Ethernet frame at selected positions of a portion dedicated to “payload” data and addressed to their destination port. The switch comprises Ethernet frame switching means (ES) connected to the various line boards (LBi) for switching the composite Ethernet frames to the line boards (LBi) as a function of their respective destination ports.