Need Advice - 140m Ethernet Run Between Buildings - TechRepublic
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August 2, 2025 at 11:07 AM
mr.aaferimmobilier.com

Need Advice – 140m Ethernet Run Between Buildings

by mr.aaferimmobilier.com . Updated 5 months, 1 week ago

Hey community,

I’m facing a technical challenge and could really use your expertise. I need to establish a wired network connection between two points 140 meters apart – well beyond the standard 100m limit for Ethernet.

Key Details:

Outdoor installation (connecting two separate buildings)
Requires stable, reliable bandwidth
Must be wired (WiFi isn’t suitable for this application)
Looking for real-world experience:

Has anyone successfully implemented a similar long-distance run?
What solutions actually worked in practice?
Any pitfalls or lessons learned I should know about?
I’m especially interested in hearing about what’s worked (or failed) for others in field deployments.

Thanks in advance for sharing your knowledge!

PS: I’m aware fiber is an option, but curious about other approaches that might work with just rj45 cables.

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