19-inch rack: Difference between revisions

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Line 3: == Dimensions == [[File:19 inch rack dimensions.svg\|thumb\|500px\|right\|19" rack dimensions]] [[File:Kaefigmutter martink.jpg\|thumb\|right\|200px\|\|Rack rail and cage nut]] RU (rack unit) or U is the unit of measure used to describe the height of equipment intended for mounting in a 19-inch rack. One U is 1.75 inches (44.45 mm) high. Line 10 ⟶ 11: == Fastening == Tapped-hole racks are used for hardware that rarely changes, such as phone, network cabling panels, TV broadcasting facilities, studios and relay racks. Clearance-hole racks have holes large enough to permit a bolt to be freely inserted through without binding, and held in place by cage nuts, (a spring steel clip within which is a captive nut). Square-hole racks allow boltless mounting, such that the rack-mount equipment only needs to insert through and hook down into the lip of the square hole.~~<!-- thread specs?-->~~ === Mounting screws === These days square holes for cage-nuts in rack rails are more common than threaded holes. The mounting screws and cage-nuts sizes are typically: * Metric M6, (thread size of 6 millimeters). These are larger and stronger than the #10-32 screws. * American #10-32, (drill size 10 and 32 threads per inch), smaller than a #12-24 screw. * American #12-24, (drill size 12 and 24 threads per inch), larger than a #10-32 screw, smaller than an M6 screw.<ref>[http://www.rackittechnology.com/shopping/solution.php?cID=202 Rack-mounting screws for mounting equipment, shelves, and accessories onto IT racks], Rackit Technology</ref> == References == Line 19 ⟶ 25: == External links == * [~~http~~https://www.~~server-racks~~micropolis.com/support/kb/rack-mounting-faq The Server Rack FAQ] * Practical-Home-Theater-Guide.com's [https://web.archive.org/web/20120715182824/http://www.practical-home-theater-guide.com/equipment-racks-1.html Audio-Video Equipment Racks] * Wikipedia:[http://en.wikipedia.org/wiki/Rack_unit Rack unit] * Synthesizers.com:[https://web.archive.org/web/20130730232051/http://www.synthesizers.com/rackinfo.txt Building a studio rack] * [~~https://web.archive.org/web/20141008154112/~~http://~~plans~~www.thefrankes.com/~~Tutorials/rackrails~~wp/?page_id=3252 All About Racks and Rails] === DIY === * Synthesizers.com, [https://web.archive.org/web/20130812081100/http://www.synthesizers.com/diycabinet.html DIY Synthesizer Cabinet] * Instructables, [https://web.archive.org/web/20130804181425/http://www.instructables.com/id/8U-Rack-Case-From-IKEA-RAST-Table/ 8U Rack Case From IKEA RAST Table] * PatchPierre, [http://patchpierre.blogspot.co.uk/2012/01/diy-modular-case-ideas.html DIY Modular Case Ideas]