User Documentation
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  ATEX Information 
1.  Certification number DEMKO 11 ATEX 150191X 
2.  Ambient range (-40°C ≤ Tamb ≤ 75°C) 
3.  Certification string (Ex nA nC IIC T4 Gc) 
4.  Standards covered (EN 60079-0:2012+A11:2013, EN 60079-15:2010) 
5.  The conditions of safe usage: 
  The Ethernet Communication Devices are to be mounted in an IP54 
enclosure and used in an area of not more than pollution degree 2 as 
defined by IEC60664-1. 
  A 4mm2 conductor must be used when connection to the external 
grounding screw is utilized. 
  Conductors suitable for use in an ambient temperature of 93°C must be 
used for the Power Supply Terminal. 
  Provisions shall be made, either in external to the apparatus, to prevent 
the rated voltage being exceeded by the transients disturbances of more 
than 40%. 
Wiring Requirements 
WARNING 
Do not disconnect modules or wires unless power has been 
switched off or the area is known to be non-hazardous. The 
devices may only be connected to the supply voltage shown on 
the type plate. The devices are designed for operation with a 
Safety Extra-Low Voltage. Thus, they may only be connected to 
the supply voltage connections and to the signal contact with the 
Safety Extra-Low Voltages (SELV) in compliance with IEC950/ 
EN60950/ VDE0805. 
ATTENTION 
This unit is a built-in type. When the unit is installed in another 
piece of equipment, the equipment enclosing the unit must 
comply with fire enclosure regulation IEC 60950/EN60950 (or 
similar regulation). 
ATTENTION 
Safety First! 
Be sure to disconnect the power cord before installing and/or 
wiring your Ethernet Switch. 
Calculate the maximum possible current in each power wire and 
common wire. Observe all electrical codes dictating the 
maximum current allowable for each wire size. 
If the current goes above the maximum ratings, the wiring could 
overheat, causing serious damage to your equipment. 










