Audio Tenant Station Indoor Height (In.) 3 Width (In.) 10 Depth (In.) 4-1/2 Door Station Height (In.) 8-1/2 Door Station Width (In.) 4 Door Station Depth (In.) 3 Master Depth (In.) 3 Master Height (In.) 8-1/2 Master Width (In.) 4 Distance (Ft.) @ 18AWG 1200 Distance (Ft.) @ 22AWG 500 Wiring Conductors 2 Conductors Wire Type 22 AWG Power Source 12VAC Voltage 12-16VAC For Use With IE Series Includes Mounting Hardware