ADAT Lightpipe is an eight-channel digital audio format developed by Alesis. This
signal format uses TOSLINK optical connectors. Eight channels are supported at sample
rates of 44.1 and 48 kHz using 24 bits per sample. Higher sample rates are available by
pairing channels (this format is sometimes called sample multiplexing, or S/MUX). For
example, a sample rate of 192 kHz is possible, but the number of channels is reduced to
two. However, not all equipment supports channel pairing and increased sample rates.