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Industrial Instrumentation and
Control Networks
6.10
One Network Topology Is Not a Silver Bullet
- Relationships Make the Difference: Engineering and Thought Are Critical in
Determining the Optimal Network Topology Solution - Ian
Verhappen - A number of different industrial network topologies such as star or
chicken foot are in use today for the various levels of the enterprise. The
field level has different environmental and bandwidth requirements than the
control system backbone. These requirements significantly influence the
decision-making process of today's automation professional - from Industrial
Automation Networks and www.controldesign.com
The Following Links are from Relcom;
The Carrier-band Network Handbook has been the central source for
readable information on the IEEE 802.4 network since it was first
published in the mid-1980's. PDF download.
Guide
to Industrial Fiber Optics | Originally included as an appendix to the
operating manual of our fiber optic repeaters, this guide is now available
on-line and as a PDF download.
Application Notes
Sealing
F-connectors (.pdf) - details how to install a special
type of heat shrink tubing to environmentally seal the connection - cable,
F-connector-Tap.
Ground
Isolation Taps (.pdf) details concerns about grounding,
ground currents (or loops), the generation of noise due to these currents,
and how the isolated Tap can overcome these problems.
Torque
Wrench (.pdf) details the need for correct torque and
how to use a "click-stop" torque wrench.
Further Application
Notes from Relcom