5. External connections5.8 XV300 Touch Panel as a SmartWire-DT® coordinatorConditions for Underwriters Laboratories Inc. (UL) certificationThe SmartWire-DT® master interface's UAux supply voltage must be externally pro-tected against overcurrent and short-circuits with the following:l Miniature circuit-breaker 24 VDC, rated operational current 2 A, trip type Zl or a 2 A fuse.5.8.1.1 SWD power supply voltagesThe following power supplies are required for a SmartWire-DT® network:l POW supply voltage:The device supply voltage for the electronics in the downstream SmartWire-DT®modules (15 V DC) is generated using the 24 V DC supply voltage applied at the POWterminal.l AUX supply voltage:If there are any contactors or motor starters in the SmartWire-DT® topology, a 24 VDC AUX voltage must be additionally supplied as a control voltage for the contactorcoils.POW/AUX power supply interfaceThe Plug connector WAGO 734-104 plug connector is included with the device.Electrical connectionFigure 33: WAGO plug connector (view from wiring side)Plug connector PIN Signal Description4-Pole 1 +24 V DC POW Supply voltage UPOW +24 V DC2 0 V POW Supply voltage UPOW 0 V3 +24 V DC AUX Supply voltage UAUX +24 V DC4 0 V AUX Supply voltage UAUX +0 VTable 20: Pin assignment WAGO plug connectorObserve the following when assembling and terminating the wiring for the plug con-nector:60 XV300 12/15 MN048017 EN www.eaton.eu