. Telecommunication companies needed a way to organize massive amounts of heavy, bulky repeater and termination equipment in their central offices without wasting floor space. They established a standardized metal frame that was exactly 19 inches wide
Published in December 2005 , this version introduced minor grammatical updates and clarifications to the mounting specifications. Where to Access the Document Eia Eca-310-e Pdf
. This is a highly technical specification published by the Electronic Components Industry Association (ECIA) that dictates the standardized dimensions for the ubiquitous 19-inch server rack Accuris Standards Store Eia Eca-310-e Pdf
Print out the "Hole Pattern Diagram" and keep it on your workbench. It is far more useful than the entire document. Eia Eca-310-e Pdf