The Definitive Guide toAI Data Centers
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fiber pairs per path, on physically diverse routes, below which AI-grade sites are viewed as functionally stranded

24–48 pairsestimate

Value kindestimate — Interpret this value according to its displayed kind, scope, source, and as-of date.
ScopePractitioner rule of thumb reported by a single analyst source; no survey population or derivation from traffic to strand count is published.
CaveatDerive the site's requirement from its Tb/s demand, wavelength plan, reach, protection scheme, growth and route failure domains — carrier count, fiber-pair count and usable diverse capacity are not equivalent.
As of2025
SourceGlobal Data Center Hub · Fiber-capacity and route-diversity discussion; sites lacking at least 24–48 fiber pairs per path with physically diverse routing are described as functionally stranded
Reviewchecking…review by 2026-11-05 · standard cadence
Recorded changeslast 2026-06-29
Claim idfiber-pairs-per-path-on-physically-diverse

Where the guide uses it

Not quoted in a chapter yet; it is kept in the curated register.

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