▁signals ▁invert ed . ▁This ▁is ▁in ▁accord ance ▁with ▁the ▁A / B ▁naming ▁used , ▁incorrectly , ▁by ▁most ▁differential ▁trans ce iver ▁manufact ur ers , ▁including : ▁ ▁In ters il , ▁as ▁seen ▁in ▁their ▁data ▁sheet ▁for ▁the ▁IS L 4 4 8 9 ▁trans ce iver ▁ ▁Maxim , ▁as ▁seen ▁in ▁their ▁data ▁sheet ▁for ▁the ▁MAX 4 8 3 ▁trans ce iver ▁ ▁Linear ▁Technology , ▁as ▁seen ▁in ▁their ▁datas heet ▁for ▁the ▁L TC 2 8 5 0 , ▁L TC 2 8 5 1 , ▁L TC 2 8 5 2 ▁ ▁Anal og ▁Dev ices , ▁as ▁seen ▁in ▁their ▁datas heet ▁for ▁the ▁AD M 3 4 8 3 , ▁AD M 3 4 8 5 , ▁AD M 3 4 8 8 , ▁AD M 3 4 9 0 , ▁AD M 3 4 9 1 ▁ ▁F T DI , ▁as ▁seen ▁in ▁their ▁datas heet ▁for ▁the ▁USB - RS 4 8 5 - WE - 1 8 0 0 - B T ▁These ▁manufact ur ers ▁are ▁all ▁incorrect ▁( but ▁consistent ), ▁and ▁their ▁practice ▁is ▁in ▁w ides p read ▁use . ▁The ▁issue ▁also ▁exists ▁in ▁program m able ▁logic ▁controller ▁applications . ▁Care ▁must ▁be ▁taken ▁when ▁using ▁A / B ▁naming . ▁Altern ate ▁nom en cl ature ▁is ▁often ▁used ▁to ▁avoid ▁confusion ▁surrounding ▁the ▁A / B ▁naming : ▁ ▁T X + / R X + ▁or