The development of an analog interface module for a satellite multiplexer is presented, with the ability to be embedded in the group signal structure at speeds below 16 kbps and providing interaction with a wide range of subscriber telephone equipment via FXS, FXO, and E&M interfaces. The developed module was tested as part of a satellite communication system on a dedicated satellite resource.

Keywords: "analog interface, speech transmission, multiplexer, channel-forming equipment, satellite communication system, analog interface module, group signal, FXS, FXO, E&M"