Connecting; Connecting Ground (Eec) - Siemens SCALANCE XR324-4M EEC Operating Instructions Manual

Connecting

Before connecting up and commissioning the device, read the information in the section
Safety notes (Page 9)
NOTICE
Failure of the data traffic due to contamination of optical plug-in connections
Optical sockets and plugs are sensitive to contamination of the end face. Contamination
can lead to the failure of the optical transmission network.
Close unused optical sockets and plugs as well as pluggable transceivers and slots with the
supplied protective caps.
Remove the protective caps only immediately before you use the plug-in connection.
5.1

Connecting ground (EEC)

Functional ground
With the devices X-300EEC and XR-300M EEC with a 100 to 240 VAC / 60 to 250 VDC
power supply, functional ground must be connected to the grounding bolts or the power
supply terminal of every power supply unit. With the devices X-300EEC and XR-300M EEC
with 24 to 48 VDC, functional ground must be connected to the grounding bolts or the
mounting brackets (XR-300M EEC). On the X-300EEC, the functional ground is on the
bottom of the device, on the XR-300M-EEC on the side.
To wire up the functional ground, use a copper cable of category 18-8 AWG or cable with a
cross-section of 0.75 to 6 mm².
SCALANCE XR-300M EEC
Operating Instructions, 11/2015, A5E02661176-09
WARNING
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