The 5080 is a 5-port AES 110 ohm adapter for use with 5150 as an AES DA it requires one per 5150 to provide 1 in/4 out and two per 5150 to provide 1 in/9 out and 5155 as a dual AES DA it requires two per 5155 to provide 2 × 1 in/4 out.
With 5150 as an AES DA it requires one per 5150 to provide 1 in/4 out and two per 5150 to provide 1 in/9 out
5155 as a dual AES DA it requires two per 5155 to provide 2 × 1 in/4 out