Adsl2Tssi
This is a structure that represents up to 32 transmit spectrum shaping (TSSi) breakpoints. Each breakpoint occupies 3 octets: The first two octets hold the index of the sub-carrier associated with the breakpoint. The third octet holds the shaping parameter at the breakpoint. It is a value from 0 to 127 (units of -0.5 dB). The special value 127 indicates that the sub-carrier is not transmitted.