113 WarningsInstallation and maintenance should be performed only by qualified and experienced techniciansto conform to all local codes and to maintain your warranty.DANGER! AC24V models require the use of CSA Certified/UL Listed Class 2 power adapters toensure compliance with electrical safety standards. Power over Ethernet (PoE) should meet theIEEE 802.3af. PoE standard.4 Dimensions