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10mbps over 1km on a single pair of wires

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Re: 10mbps over 1km on a single pair of wires

#61

Post by xhrpost »

vicek22 wrote: post #43

- 1km of fiber optic cable - https://www.amazon.com/Jeirdus-Launch-Singlemode-Measuring-O... - 1Gb modem - https://www.amazon.com/TP-Link-Ethernet-Converter-Multi-Mode... The price for two modems and the cable is just under $120

Nitpick, I don't think you're going to just run bare fiber outdoors, not even indoors. You would need to first run your own ducting/conduit and then have the equipment to pressure force the raw line through the shielding. So, much more expensive. But you can get outdoor rated cable with moisture absorbing gel for not too much I believe (struggling to find a price). Some even come with wire-mesh already attached in the event you have to hang it between elevated positions (like telephone poles). But you would need all of that for a copper run outdoors as well so it doesn't change your point.

Back to your point, fiber came to my mind as well. Why bother running CAT5/6 when you can just run fiber? Maybe its meant for existing infrastructure? But if that's the case, what was utilizing that infra before? Is it just in cases where you happen to have phone lines running between buildings?

Re: 10mbps over 1km on a single pair of wires

#62

Post by rlonstein »

xhrpost wrote: post #49
trollied wrote: post #40

A few years ago, revk (owner of an ISP in the UK) did ADSL over wet string: https://www.revk.uk/2017/12/its-official-adsl-works-over-wet...

There's also Ethernet over barbed wire: http://www.sigcon.com/Pubs/edn/SoGoodBarbedWire.htm

Paraphrasing the old joke about getting a dry pair, must be an SBC customer.

Re: 10mbps over 1km on a single pair of wires

#63

Post by justcodin »

xhrpost wrote: post #49
trollied wrote: post #40

A few years ago, revk (owner of an ISP in the UK) did ADSL over wet string: https://www.revk.uk/2017/12/its-official-adsl-works-over-wet...

There's also Ethernet over barbed wire: http://www.sigcon.com/Pubs/edn/SoGoodBarbedWire.htm

wow

Re: 10mbps over 1km on a single pair of wires

#64

Post by klodolph »

Zenst wrote: post #51
vicek22 wrote: post #43

- 1km of fiber optic cable - https://www.amazon.com/Jeirdus-Launch-Singlemode-Measuring-O... - 1Gb modem - https://www.amazon.com/TP-Link-Ethernet-Converter-Multi-Mode... The price for two modems and the cable is just under $120

1KM of fiber cable for $60 seems crazy cheap when you contrast it with 3D printer filement. More so as I'd of thought the former be more expensive to manufacture.

There aren't that many types of fiber optic cable, the actual cable diameter is extremely small (single mode might have 9µm core), and the product is used in large quantities by price-sensitive, sophisticated consumers doing large-scale capital investments. Ethernet cable is also very cheap.

3D filament is a consumable, like paper!

Re: 10mbps over 1km on a single pair of wires

#65

Post by [deleted] »

yetihehe wrote: post #7
yosheli123 wrote: post #2

So I built a tiny single pair Ethernet bridge (10BASE-T1L) that can transmit 10mbps over a kilometer on a single pair of twisted copper wires. Would love to get some feedback for the next iteration

> Any application requiring a simple, low cost, robust connection between physically disparate devices At $195 it's definitely not low cost.

[deleted]

Re: 10mbps over 1km on a single pair of wires

#66

Post by phonon »

quickthrower2 wrote: post #28
ginko wrote: post #24

Earlier quoted context omitted.

What's the advantage of SPE compared to regular ethernet? That it's cheaper?

Well my house has electricity sockets but no ethernet sockets, so it would be less expensive than getting those installed. If I could stomach sub-wifi speeds.

Have you tried G.hn powerline to Ethernet?

Re: 10mbps over 1km on a single pair of wires

#67

Post by 2000UltraDeluxe »

quickthrower2 wrote: post #28
ginko wrote: post #24

Earlier quoted context omitted.

What's the advantage of SPE compared to regular ethernet? That it's cheaper?

Well my house has electricity sockets but no ethernet sockets, so it would be less expensive than getting those installed. If I could stomach sub-wifi speeds.

Why not use the power lines? https://en.wikipedia.org/wiki/HomePlug
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