Portable, 4-channel intercom user device for Dante Audio-over-Ethernet applications. Multiple units can be used to create a party-line (PL) intercom system in conjunction with an external digital matrix device. Two units can also be directly used in a "point-to-point" intercom configuration. Single- or dual-channel headsets, not included, can be directly connected. The unit requires an Ethernet with Power-over-Ethernet (PoE) connection to supply both the data interface as well as power. Can also be powered by a PoE midspan power supply. See Accessories for PS-POE-01, purchased separately.