Connecting Up; Safety When Connecting Up - Siemens SCALANCE XB-000 Operating Instructions Manual

Connecting up

6.1

Safety when connecting up

Safety notices
When connecting up the device, keep to the safety notices listed below.
Power supply
The device is designed for operation with a directly connectable safety extra low voltage (SELV)
from a limited power source (LPS).
The power supply therefore needs to meet at least one of the following conditions:
• Only safety extra low voltage (SELV) with limited power source (LPS) complying with IEC
• The power supply unit for the device must meet NEC Class 2 according to the National
If the equipment is connected to a redundant power supply (two separate power supplies),
both must meet these requirements.
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. Take the following precautions to avoid
functional impairments:
• Clean the end face of field-assembled connectors carefully before connecting. No residues
• Only remove the dust caps of optical transceivers and pre-configured cables shortly before
• Close unused optical sockets and plugs as well as pluggable transceivers and slots with the
SCALANCE XB-000
Operating Instructions, 01/2022, A2B00077300-11
WARNING
60950‑1 / EN 60950‑1 / VDE 0805‑1 or IEC 62368-1 / EN 62368-1 / VDE 62368-1 may be
connected to the power supply terminals.
Electrical Code (r) (ANSI / NFPA 70).
of processing may remain on the connector.
connecting the cables.
supplied protective caps.
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