COSENTINO, RosarioRosarioCOSENTINO2022-01-032022-01-032022http://hdl.handle.net/20.500.12386/31285https://doi.org/10.20371/INAF/TechRep/110This DRS Manual is intended to give all necessary information to potential users of the HARPS-N instrument, to help them to use the instrument and manages the observation at the TNG telescope. This manual is focussed on the ESPRESSO DRS installed the 28th of October 2021, although refer to the previous version to facilitate the transition from the original DRS-32 to the ESPRESSO DRS, especially in the first period of overlap of the two DRS.enFIS/05 - ASTRONOMIA E ASTROFISICA