SCALANCE W774-1/W734-1 
Operating Instructions, 09/2015, C79000-G8976-C325-06 
3 
1  Information on the Internet ...................................................................................................................... 5 
2  Introduction ............................................................................................................................................. 7 
2.1  Information on the Operating Instructions ................................................................................ 7 
2.2  Structure of the type designation .............................................................................................. 8 
2.3  Security information .................................................................................................................. 8 
3  Description .............................................................................................................................................. 9 
3.1  Components of the product ...................................................................................................... 9 
3.2  LED display ............................................................................................................................... 9 
3.3  Reset button ............................................................................................................................ 11 
4  Mounting ............................................................................................................................................... 13 
4.1  Wall mounting ......................................................................................................................... 14 
4.2  Installing on an S7-300 standard rail ...................................................................................... 16 
4.3  Installing on an S7-1500 standard rail .................................................................................... 17 
4.4  Installing on a DIN rail / removing ........................................................................................... 18 
5  Connection ........................................................................................................................................... 21 
5.1  Lightning protection, power supply and grounding ................................................................. 21 
5.2  Power supply .......................................................................................................................... 25 
5.3  Ethernet .................................................................................................................................. 28 
5.4  Suitable cables for power supply and Ethernet ...................................................................... 30 
5.5  Antenna connectors ................................................................................................................ 31 
5.6  Suitable antenna cables and antennas ................................................................................... 32 
5.7  Replacing the PLUG (C-PLUG or KEY-PLUG) ...................................................................... 35 
6  Technical data ...................................................................................................................................... 39 
6.1  Technical specifications W774/W734 RJ-45 .......................................................................... 39 
6.2  Technical specifications W774 M12 ....................................................................................... 42 
7  Dimension drawings .............................................................................................................................. 45 
8  Approvals .............................................................................................................................................. 47 
  Index..................................................................................................................................................... 49