g/networking • Posted by u/rack_and_stack_rob • 1 months ago

Data center rack build — fiber and copper management on a 42U open frame

Finished a 42U open-frame rack build for a medium business data center expansion. About 180 patch cables total plus 12 fiber trunks.

Process: patch panels at top, switches in middle, servers at bottom (weight distribution). Cable management: velcro only (no zip ties on live patch cables — you'll thank yourself later). Color coding: blue for client copper, yellow for inter-switch fiber, orange for storage fiber, grey for management.

Every cable labeled at both ends with Brady labels — port ID, source, and destination.

The initial build took 3 days for one tech. Future adds will take 20 minutes because everything is labeled and documented.

💬 3 replies

3 replies

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u/fiber_splicer_faye • 26 days ago

What fiber connector type on the trunks? LC duplex or MPO/MTP? On a 42U rack with 12 trunks, MPO would have saved you significant cable management space at the patch panel end.

u/wireless_wendy • 1 months ago

Color coding by function is smart. Do you have a written color code standard you follow across all your installs, or is it site-specific? I'm trying to standardize my shop and curious what others use.

u/cat6_carlos • 1 months ago

Velcro on patch cables is the right call. I've been on remediation projects where someone zip-tied a live fiber trunk too tight and crimped the bend radius. The extra $50 in velcro straps is worth it every time. Clean build.