By Topic

40 Gb/s and 100 Gb/s ethernet short-reach optical and copper host board channel design

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Rabinovich, R. ; Alcatel-Lucent

Since its inception in the early '70s, Ethernet has gradually displaced other popular standards, such as token-ring, while becoming the de facto standard for local area networks in the enterprise office and data center environments. During Ethernet's lifetime, data rates have increased from the original 10 Mb/s to 10 Gb/s. Now, 40 Gb/s and 100 Gb/s standards have been defined, ushering in the next generation of equipment and components. This article presents the challenges of designing 40 Gb/s and 100 Gb/s Ethernet host board channels that are targeted for data center applications. The data center infrastructure comprises: a short-reach optical multimode fiber of length 100 m or less; and/or a copper twinax shielded cable of length 7 m or less, to interconnect collocated communication equipment racks. The recently published 40 Gb/s and 100 Gb/s Ethernet standard specifies the copper interfaces (CR4/CR10) and the short-reach optical nonretimed optical interfaces (SR4/SR10). This article reviews the Ethernet copper and fiber short-reach application compliance test techniques, and identifies common specifications and areas of divergence for both applications. Cable specifications and its insertion loss budget are also reviewed, providing conclusions that will aid the communications equipment and components manufacturer with a clear reference to address the design and implementation of a standards-compliant product.

Published in:

Communications Magazine, IEEE  (Volume:50 ,  Issue: 4 )