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8 Guidelines for Electrical Installation
8.1 General notes
150
XI/ON: XNE-GWBR-2ETH-MB
10/2011 MN05002008Z-EN
www.eaton.com
Cable routing outside buildings
Outside of buildings, cables should be routed in closed (where possible), cage-type cable
ducts made of metal. The cable duct joints must be electrically connected and the cable ducts
must be earthed.
8.1.3
Lightning protection
The cables must be routed in double-grounded metal piping or in reinforced concrete cable
ducts.
Signal cables must be protected against overvoltage by varistors or inert-gas filled overvoltage
arrestors. Varistors and overvoltage arrestors must be installed at the point where the cables
enter the building.
8.1.4
Transmission media
For a communication via Ethernet, different transmission media can be used:
• coaxial cable
10Base2 (thin koax),
10Base5 (thick koax, yellow cable)
• optical fibre (10BaseF)
• twisted two-wire cable (10BaseT) with shielding (STP) or without shielding (UTP).
Warning
Observe all valid guidelines concerning internal and external lightning protection and
grounding specifications when routing cables outside of buildings.
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Страница 1: ...10 2011 MN05002008Z EN User Manual XI ON XNE GWBR 2ETH MB Gateway...
Страница 8: ...Table of contents 8 XI ON XNE GWBR 2ETH MB 10 2011 MN05002008Z EN www eaton com...
Страница 12: ...1 About this manual 1 3 Overview 12 XI ON XNE GWBR 2ETH MB 10 2011 MN05002008Z EN www eaton com...
Страница 148: ...7 Guidelines for station planning 7 7 Firmware download 148 XI ON XNE GWBR 2ETH MB 10 2011 MN05002008Z EN www eaton com...