Submittal

©2008 PANDUIT Corp. All rights reserved. www.panduit.com 10
Fiber Systems:
Polarity Best Practices
Conclusion
Ensuring fiber polarity over an array-based system requires a significant number of decisions early in the design
process. The challenge for the system designer is ensuring that polarity of connections is observed from end to
end, particularly in systems that contain many interconnect points. Constant attention is required to ensure that
polarity decisions are adhered to by installers and other network stakeholders.
TIA/EIA-568-B.1 Addendum 7 provides guidance on three polarity management methods, so it is important to
specify one method and implement it consistently in order to manage the risk associated with costly mistakes
and re-work over the life of the installation. Method A is endorsed by PANDUIT because it provides the simplest
deployment, works for singlemode and multimode fiber channels, supports network extensions, and is easily
extendable to emerging parallel optics systems.
Array-based fiber optic cabling systems such as the PANDUIT
®
QUICKNET Fiber Optic Cabling System enable
faster implementation of scalable, high-density data center cabling deployments. Q
UICKNET pre-terminated
cassettes and cable assemblies improve on the time required for installation of fiber connections by reducing
the number of laborious strand-to-strand connections, making deployment of high-speed network-cabled
devices in data centers easier, faster, and more cost-effective.
When coupled with a consistent policy to ensure polarity across the hundreds or thousands of permanent links
in today’s data centers, pre-terminated solutions allow quick and scalable deployment. Data center designers
can take advantage of array-based fiber optic systems while ensuring the widest choice in installation vendors,
component manufacturers, and technology.
About PANDUIT
PANDUIT is a leading, world-class developer and provider of innovative networking and electrical solutions. For
more than 50 years, PANDUIT has engineered and manufactured end-to-end solutions that assist our
customers in the deployment of the latest technologies. Our global expertise and strong industry relationships
make PANDUIT a valuable and trusted partner dedicated to delivering technology-driven solutions and
unmatched service. Through our commitment to innovation, quality and service, PANDUIT creates competitive
advantages to earn customer preference.
www.panduit.com · cs@panduit.com · 800-777-3300