Page 8 AXIS Q1931-E/Q1932-E Installation Guide Ø 3.5 - 7.5 mm (0.14 - 0.29 in) 8-28 V DC max 11 W 20-24 V AC max 15 VA +/- -/+ ~ ~ Power over Ethernet IEEE 802.3af/802.3at Type 1 Class 3