Siemens SIMATIC NET RUGGEDCOM RS940G Equipment Manual page 13

Introduction
1.5 Cabling Recommendations
Decommissioning
This device may include sensitive, proprietary data. Before taking the device out of
service, either permanently or for maintenance by a third-party, make sure it has
been fully decommissioned.
For more information, refer to the associated "RUGGEDCOM ROS Configuration
Manual".
Recycling and disposal
This device is low in pollutants, can be recycled, and meets the requirements of the
WEEE directive 2012/19/EU for the disposal of electrical and electronic equipment.
Do not dispose of devices at public disposal sites.
For environmentally friendly recycling and the disposal of devices, contact a certified
disposal company for electronic scrap or your Siemens contact.
For more information, refer to
view/109479891.
Note the different national regulations.
1.5 Cabling Recommendations
Before connecting the device, be aware of the recommendations and considerations
outlined in this section.
1.5.1 Protection On Twisted-Pair Data Ports
All copper Ethernet ports on RUGGEDCOM products include transient suppression
circuitry to protect against damage from electrical transients and conform with
IEC 61850-3 and IEEE 1613 Class 1 standards. This means that during a transient
electrical event, communications errors or interruptions may occur, but recovery is
automatic.
Siemens also does not recommend using copper Ethernet ports to interface with
devices in the field across distances that could produce high levels of ground
potential rise (i.e. greater than 2500 V), during line-to-ground fault conditions.
4
https://support.industry.siemens.com/cs/ww/en/
RUGGEDCOM RS940G
Equipment Manual, 10/2023, C79000-G8976-1036-09