Connections with third-party devices or panels are enabled in the Eclipse using a variety of interface modules such as the Tel-14 (digital hybrid telephone interface ), AES-6-CX (V-Series or 4000 digital panels connection to Eclipse matrices over AES3 digital audio), CCI-22 (2-wire full duplex party-line interface), DIG-2 (two panel-to-matrix connections over a single twisted pair cable), GPI-6 (six general purpose Opto logic inputs into the matrix), FOR-22 (4-Wire/2-Way radio interface), and RLY-6 (six fully programmable SPDT).