Analyze your network, Identify fiber media components – Rockwell Automation 1786-series ControlNet Fiber Media Planning and Installation Guide User Manual
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Rockwell Automation Publication CNET-IN001C-EN-P - October 2011
Chapter 1 Get Started with the ControlNet Network Fiber Media System
.
Analyze Your Network
Take the time to analyze your current or new network application to see where it
makes the most sense to use coax or fiber media. If you are creating a new network
or adding fiber to an existing network, create a design plan for the fiber segments
of your network and identify the purpose for the fiber segments.
By creating a plan and analyzing your design you will be eliminating the potential
for misapplication of media. Use the example topologies to determine your
network’s topology. When you understand your network’s topology it will help
you determine the media components you need to achieve your
application requirements.
Identify Fiber Media
Components
The ControlNet network fiber media system is comprised of these components:
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For information on purchasing these components, see the ControlNet Media
System
Components List, publicatio
Table 1 - Fiber Media Advantages
Features
Benefits
Electrical isolation
Fiber media is isolated from any potential electrical sources
that cause disruptions on copper media. Fiber media is
well-suited for installations between buildings, and provides
immunity to lightning strikes.
Immunity to interference
Fiber media is immune to EMI (electromagnetic interference)
since it uses light pulses on glass fibers. Fiber media is
effective in noisy environments (heavy machinery, multiple
cable systems, and so forth) where copper could suffer
disruptions. Fiber media is also suited for
high-voltage environments.
Longer distances
Fiber media has less transmission loss than copper media.
The lower loss in fiber media means fewer repeaters than
copper media, making fiber more effective for applications
requiring long-distance media connections.
Decreased size and weight
Fiber media is smaller and lighter than coax media for ease
of installation.
Entry into hazardous areas
Fiber media is a portal for information into hazardous areas,
reducing the risk of injury. For more information on choosing
components for use in hazardous areas, refer to the
ControlNet EX Media Planning and Installation Guide,
publication