SFP transceivers
Information about pulling and plugging SFP or SFP+ transceivers can be found in the section
"Inserting and removing pluggable transceivers (Page53)".
5.3 19" rack mounting
Notes on 19" rack mounting
WARNING
Increased ambient temperature
When installed in a closed rack or a rack unit with several devices, the ambient temperature of
the rack may be higher than the room temperature. Install the devices in an environment
compatible with the maximum ambient temperature specied by the manufacturer.
WARNING
Reduced air ow
Install the devices in a rack so that there is an adequate air ow for the reliable operation of the
devices.
WARNING
Mechanical load
When installing the devices in a rack, avoid the dangers of unequal mechanical load.
WARNING
Circuit overload
When connecting the devices to the power supply, avoid the eects of circuit overload on the
overcurrent protection and the power supply cables. Take into account the rated values on the
nameplate of the devices.
WARNING
Reliable grounding
Devices mounted in racks must be reliably grounded. Pay particular attention to supply
connectors that are not directly connected to the circuit branch (e.g. socket strip).
Installing and removing
5.319" rack mounting
SCALANCE XR-300
48 Operating Instructions, 03/2023, C79000-G8976-C586-02
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