Siemens RUGGEDCOM RS900G

Installing the Device
2.2Cabling Recommendations
2.2 Cabling Recommendations
Siemens does not recommend the use of copper cabling of any length for critical, re-
al-time substation automation applications. All copper Ethernet ports on RUGGED-
COM 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 inter-
ruptions may occur, but recovery is automatic.
Siemens also does not recommend using copper Ethernet ports to interface with de-
vices 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.
2.3 Installing the Device in Hazardous Locations
The RUGGEDCOM RS900G is designed to comply with the safety standards for Class
I, Division 2 hazardous locations where concentrations of flammable gases, vapors or
liquids may be present, as opposed to normal operating environments.
IMPORTANT
The device is certified for installation in hazardous environments as a component
only. It is required to be installed in a suitable enclosure where the final combination
is subject to acceptance by an authorized local inspection authority.
Installation and use of the device in a hazardous location should meet the following
special conditions for safe use:
• The device must be installed in a suitable enclosure
• Components must not be substituted for non-Siemens parts
• The device must not be disconnected unless the power has been turned off or
the area is known to be non-hazardous
• The device must be appropriately connected to safety Earth upon installation
Note
For further details of the device's compliance with Class I, Division 2 standards, refer
to "Approvals (Page 27)".
IMPORTANT
Do not disconnect or open equipment unless power has been switched off or the
area is known to be non-hazardous.
IMPORTANT
Débrancher ou ouvrir l'équipment seulement si l'alimnetation a été coupée ou si l'on
sait que la zone ne pose aucun danger.
IMPORTANT
Substitution of the components may impair suitability for Class I, Division 2.
IMPORTANT
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RUGGEDCOM RS900G
Installation Manual, 06/2020, C79000-G8976-1025-07