Siemens SCALANCE XRH-300

4.7 LED display ........................................................................................................................ 33
4.7.1 Position ............................................................................................................................. 33
4.7.2 "A" LED .............................................................................................................................. 33
4.7.3 LEDs "DM1" and "DM2"....................................................................................................... 34
4.7.4 LEDs "L1" and "L2".............................................................................................................. 34
4.7.5 "P" LEDs ............................................................................................................................. 35
4.8 SELECT / SET button ........................................................................................................... 36
4.8.1 Position ............................................................................................................................. 36
4.8.2 Function............................................................................................................................ 36
4.8.3 Setting the display mode.................................................................................................... 37
4.9 Con󹪝guration License PLUG................................................................................................ 37
4.9.1 Position ............................................................................................................................. 37
4.9.2 Function............................................................................................................................ 38
5 Installing and removing....................................................................................................................... 39
5.1 Safety during installation ................................................................................................... 39
5.2 Types of installation ........................................................................................................... 42
5.3 19" rack mounting ............................................................................................................. 44
5.4 Four-point mounting.......................................................................................................... 46
5.5 Inserting and removing pluggable transceivers................................................................... 49
5.5.1 General notes for SFP transceivers...................................................................................... 49
5.5.2 Inserting a plug-in transceiver (SFP/SFP+)........................................................................... 49
5.5.3 Removing a pluggable transceiver (SFP/SFP+) ..................................................................... 50
5.6 Disassembly....................................................................................................................... 50
6 Connecting up ..................................................................................................................................... 51
6.1 Safety when connecting up................................................................................................ 51
6.2 Wiring rules ....................................................................................................................... 55
6.3 24 V AC/DC power supply................................................................................................... 56
6.4 Power supply 100 to 240 VAC / 110 to 250 VDC.................................................................. 60
6.5 Grounding ......................................................................................................................... 63
6.5.1 Functional ground ............................................................................................................. 64
6.5.2 Protective grounding (24 V AC/DC device versions) ............................................................. 64
6.5.3 Protective grounding (100 to 240 VAC / 110 to 250 VDC device versions)............................ 65
6.5.4 Connecting the grounding via a grounding bolt.................................................................. 66
6.6 Industrial Ethernet ............................................................................................................. 66
6.6.1 Electrical............................................................................................................................ 66
6.6.2 Optical............................................................................................................................... 69
6.6.3 Dependency between ports and ambient temperature (derating) ....................................... 70
6.7 Signaling contact ............................................................................................................... 71
6.8 USB console interface ........................................................................................................ 73
6.9 Replacing a CLP.................................................................................................................. 74
Table of contents
SCALANCE XRH-300/XRM-300
4 Equipment Manual, 10/2022, C79000-G8976-C546-01