Security Information - Siemens SIMATIC NET OBT Operating Instructions Manual

Introduction

1.1 Security information

1) HCS is a registered trademark of Spectran Speciality Optics and stands for "Hard Polymer
Cladded Silica Fiber".
Sensitivity
Just as the FO cable is insensitive to EMC interference, an FO cable also emits no electromagnetic
waves into its environment. Sensitive electronic devices located in the vicinity of the fiber-optic
cable therefore need no additional protection or suppression measures.
Power supply
The OBT requires an operating power supply of 24 VDC that is connected via two screw terminals.
Operating state
LEDs signal the current operating state and any problems affecting operation.
Mechanical construction
The mechanical construction consists of a compact plastic housing that can be mounted either
on a DIN rail or any flat surface.
Security information
1.1 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is necessary
to implement – and continuously maintain – a holistic, state-of-the-art industrial security
concept. Siemens' products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected to
an enterprise network or the internet if and to the extent such a connection is necessary and only
when appropriate security measures (e.g. firewalls and/or network segmentation) are in place.
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity (https://www.siemens.com/industrialsecurity).
Siemens' products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customer's exposure to cyber
threats.
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PROFIBUS Optical Bus Terminal (OBT)
Operating Instructions, 06/2022, C79000-G8976-C122-08