The idDAS APOI is an Active Point of Interface used to connect various DAS feeders like BTSs (Base Transceiver Stations), Small Cells, or RRHs (Radio Remote Heads) and/or an Off-Air Repeater to the digital DAS system.

Up to 16 BTS sectors can be connected to each APOI shelf. Each APOI shelf consists of 8 plug in BTS interface modules (BTSI). Each BTSI covers one single band and supports up to 2 BTS ports. The supported services are: 800, 900, 1800, 2100, 2600 plus 700LTE, SMR 800 (Sprint), Cellular 850, 1900 and AWS. Each BTSI can be either un-duplexed (separate ports for TX/RX) or duplexed (single port for TX/RX) configuration, thus allowing different connections to different BTSs.