42 • Fieldbus CouplerFieldbus Coupler 750-341WAGO-I/O-SYSTEM 750ETHERNET TCP/IP3.1.2 Hardware3.1.2.1 View24V 0V+ +- -01 02LINKMSNSI/OETHERNETCDBATxD/RxD750-3410VfieldbusconnectionRJ 45configurationinterfacestatusvoltage supply-power jumper contacts-systemdata contactssupply24V0Vsupply viapower jumper contacts24Vpower jumper contactsflapopenFig. 3.1-1: Fieldbus coupler ETHERNET TCP/IP g034100eThe fieldbus coupler is comprised of:• Supply module which includes the internal system supply as well as powerjumper contacts for the field supply via I/O module assemblies.• Fieldbus interface with the bus connection RJ 45• Display elements (LED's) for status display of the operation, the buscommunication, the operating voltages as well as for fault messages anddiagnosis• Configuration Interface• Electronics for communication with the I/O modules (internal bus) and thefieldbus interface