Complex sentence: TC-PAM (an acronym for Trellis Coded Pulse Amplitude Modulation) is the modulation format that is used in both HDSL2 and SHDSL, and provides vigorous presentation over an assortment of loop circumstances.
Split into simpler sentences: TC-PAM is an acronym for Trellis Coded Pulse Amplitude Modulation. It is the modulation format that is used in both HDSL2 and SHDSL, and provides vigorous presentation over an assortment of loop circumstances.