The Allen & Heath M-DIGIN-A 8-Channel Digital Input Module is designed for the iLive iDR-10. This module provides 8 digital inputs arranged as four pairs. Each offers a choice of digital format - AES, SPDIF or optical (TOSLINK). For each pair, one format is chosen and used at a time. The selection is made using the iLive Surface or PC application channel SEL function. One of 3 yellow LED indicators lights to show which input format is selected.