22 Hardware overviewNN47928-302NN47928-302Single power supply holderThe single power supply holder enables you to install one power supply unit on the wall next toyour BSG8ew. The power supply holder keeps the power cables neatly organized.Power supplyThe BSG8ew is powered by a 60 W 12 V DC power supply with a power supply cord. TheIEC320-C13 AC connector is available for all supported regions. You must have one powersupply for each unit in your system. For more information, see “BSG8ew power supply package”on page 22.The BSG12ew/aw/tw is powered by a 132 W 48 V DC power supply with a power supply cord.The IEC320-C13 AC connector is available for all supported regions. You must have one powersupply for each unit in your system. For more information, see “BSG12ew/aw/tw power supplypackage” on page 23.BSG8ew power supply packageOnly the BSG12ew/aw/tw provides Power over Ethernet (PoE) functionality. The BSG12ew/aw/tw is powered by a 132-watt switching power adapter. The unit is designed to automaticallybalance PoE power over all ports.After all available PoE power is assigned, the PoE on the next port is disabled. The Ethernetconnection is still available, but no power is available from the port.The power supply package is included with the BSG8ew/12ew/aw/tw.Power supplycord12 V DC barrelconnectorPower supply cable(NA shown) To wall outlet