Description: The E-side Cable Model parameter A (DPBOESCMA) of the cable model (DPBOESCM) for cables connecting exchange based DSL services to a remote flexibility point (cabinet), that hosts the xTU-C that is subject to spectrally shaped downstream power back-off (DPBO) depending on this value. The cable model is in terms of three scalars xdsl2LConfProfDpboEsCableModelA (DPBOESCMA), xdsl2LConfProfDpboEsCableModelB(DPBOESCMB), and xdsl2LConfProfDpboEsCableModelC (DPBOESCMC), that are used to estimate the frequency dependent loss of E-side cables calculated from the xdsl2LConfProfDpboEsEL (DPBOESEL) parameter. Possible values shall be coded as unsigned integers representing a scalar value from -1 (coded as 0) to 1.5 (coded as 640) in steps of 2^-8. All values in the range are valid. This parameter is used only for G.993.2. Unit: 2^-8.