
Table of contents
1 Introduction ........................................................................................................................................... 5
1.1 On the Operating Instructions .............................................................................................. 5
2 Safety notices ........................................................................................................................................ 9
3 Recommendations on network security.............................................................................................. 11
4 Description of the device..................................................................................................................... 17
4.1 Properties and functions .................................................................................................... 17
4.2 Product overview............................................................................................................... 19
4.3 Device views...................................................................................................................... 21
4.3.1 PE408................................................................................................................................ 21
4.3.2 PE408PoE .......................................................................................................................... 22
4.3.3 PE400-8SFP ....................................................................................................................... 23
4.4 Accessories........................................................................................................................ 24
4.5 LED display ........................................................................................................................ 25
4.5.1 LEDs "2" and "3" ................................................................................................................. 25
4.5.2 LEDs "L1" and "L2".............................................................................................................. 26
4.5.3 Port LEDs ........................................................................................................................... 26
4.6 Power over Ethernet (PoE).................................................................................................. 28
5 Installation........................................................................................................................................... 31
5.1 Safety notices for installation ............................................................................................. 31
5.2 Types of installation ........................................................................................................... 33
5.3 Installation on a DIN rail..................................................................................................... 34
5.4 Installation on a standard S7-300 rail ................................................................................. 35
5.5 Installation on a standard S7-1500 rail ............................................................................... 36
5.6 Fitting an extender ............................................................................................................ 37
6 Connecting up ..................................................................................................................................... 41
6.1 Safety when connecting up................................................................................................ 41
6.2 Further notes..................................................................................................................... 43
6.3 PoE power supply of the PE408PoE..................................................................................... 45
7 Technical specications ....................................................................................................................... 47
7.1 Technical specications of the PE408.................................................................................. 47
7.2 Technical specications of the PE408PoE ............................................................................ 48
7.3 Technical specications of the PE400-8SFP ......................................................................... 49
Extender for SCALANCE XM-400
Operating Instructions, 03/2021, C79000-G8976-C332-10 3