Projects/Ethernet over phone cable - Bewerkingsoverzicht

Zarya op 23 jan 2013 om 21:53

2013-01-23T21:53:22Z

← Oudere versie		Versie van 23 jan 2013 21:53
Regel 1:		Regel 1:
	{{Project		{{Project
	\|name=Ethernet over phone cable		\|name=Ethernet over phone cable
	\|start=2012-04-02		\|start=2012/04/02
	~~\|end=2012-04-18~~
	\|contact=bobo1on1		\|contact=bobo1on1
	\|info=Run ethernet over a phone cable, using homeplug adapters.		\|info=Run ethernet over a phone cable, using homeplug adapters.
	\|status=Production		\|status=Production
			\|Picture=Transformer_in_box.JPG
			\|end=2012-04-18
	}}		}}

	==Faster interwebz==		==Faster interwebz==

WilcoBaanHofman op 25 jul 2012 om 14:48

2012-07-25T14:48:36Z

← Oudere versie		Versie van 25 jul 2012 14:48
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	{{Project		{{Project
	\|name=Ethernet over phone cable		\|name=Ethernet over phone cable
			\|start=2012-04-02
			\|end=2012-04-18
	\|contact=bobo1on1		\|contact=bobo1on1
	\|info=Run ethernet over a phone cable, using homeplug adapters.		\|info=Run ethernet over a phone cable, using homeplug adapters.

WilcoBaanHofman: WilcoBaanHofman moved page Ethernet over phone cable to Projects/Ethernet over phone cable: Project->Projects

2012-07-25T14:48:03Z

WilcoBaanHofman moved page Ethernet over phone cable to Projects/Ethernet over phone cable: Project->Projects

← Oudere versie		Versie van 25 jul 2012 14:48
(geen verschil)

WilcoBaanHofman op 24 jul 2012 om 13:06

2012-07-24T13:06:07Z

← Oudere versie		Versie van 24 jul 2012 13:06
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	\|contact=bobo1on1		\|contact=bobo1on1
	\|info=Run ethernet over a phone cable, using homeplug adapters.		\|info=Run ethernet over a phone cable, using homeplug adapters.
	\|status=~~Productie~~		\|status=Production
	}}		}}

Bobo1on1 op 18 apr 2012 om 18:59

2012-04-18T18:59:15Z

← Oudere versie		Versie van 18 apr 2012 18:59
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	<br>		<br>
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	[[Image:Homeplug total.JPG\|300px]]		[[Image:Homeplug total.JPG\|300px]] [[Image:Homeplug total2.JPG\|300px]]
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Bobo1on1: /* Hardware */

2012-04-18T18:39:08Z

Hardware

← Oudere versie		Versie van 18 apr 2012 18:39
Regel 23:		Regel 23:

	And then I thought about homeplugs, if those things can manage to get a reasonable amount of data over the mains wiring, surely they must work absolutely wonderful over a phone cable.<br>		And then I thought about homeplugs, if those things can manage to get a reasonable amount of data over the mains wiring, surely they must work absolutely wonderful over a phone cable.<br>
	So I decided to try it out, and ~~started by buying~~ a set of TP-Link TL-PA511 homeplug adapters.		So I decided to try it out, and bought a set of TP-Link TL-PA511 homeplug adapters.
	<br>		<br>
	<br>		<br>
Regel 60:		Regel 60:
	<br>		<br>
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	==Results==		==Results==
	I connected one homeplug to my desktop machine, and the other to my notebook (both are capable of gigabit ethernet) and checked the connection speed with the TL-PA511 Powerline Utility. It said 504 mbit, which I assume is the maximum.		I connected one homeplug to my desktop machine, and the other to my notebook (both are capable of gigabit ethernet) and checked the connection speed with the TL-PA511 Powerline Utility. It said 504 mbit, which I assume is the maximum.

Bobo1on1 op 18 apr 2012 om 15:49

2012-04-18T15:49:10Z

← Oudere versie		Versie van 18 apr 2012 15:49
Regel 67:		Regel 67:
	<br>		<br>
	<br>		<br>
	~~I then ran~~ a ~~test with iperf~~, ~~and got an average throughput of 224 Mbits/sec both ways (~~but not ~~at the same time of course), wow!~~		The average ping is a little over 2 milliseconds, pretty low but not as low as ethernet.
	<br>		<br>
	~~That was really surprising, I've read a lot of reviews about homeplugs before buying them, and never have I seen any homeplug setup reach this speed.~~
	<br>		<br>
	~~The average~~ ping ~~over~~ the ~~homeplugs is about 2 milliseconds~~, it~~'s low enough but not as low as ethernet, luckily~~ this ~~doesn't have much influence on the network speed~~.		[[Image:Homeplug-ping.png\|border]]
			<br>
			<br>
			I ran two bidirectional tests with iperf, an individual and a simultaneous one.
			<br>
			<br>
			[[Image:Homeplugiperf-individual.png\|border]] [[Image:Homeplugiperf-bidirectional-notebook.png\|border]]
			<br>
			<br>
			Wow! Over 220 mbit individually and the simultaneous test reached almost 240 mbit combined, I did not expect it to work this good.

Bobo1on1 op 18 apr 2012 om 00:17

2012-04-18T00:17:13Z

← Oudere versie		Versie van 18 apr 2012 00:17
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	But with the fiber connection, the router was in the place where the DSL splitter used to be. For the phone this didn't matter, I simply plugged the phone cable into the router and it worked.<br>		But with the fiber connection, the router was in the place where the DSL splitter used to be. For the phone this didn't matter, I simply plugged the phone cable into the router and it worked.<br>
	However connecting my desktop pc to the internet was going to be a little more difficult, running a network cable through the house was going to be a big pain in the ass. I tried running 100 mbit ethernet over the 15 meter long phone cable, but unsurprisingly it didn't work at all.<br>		However connecting my desktop pc to the internet was going to be a little more difficult, running a network cable through the house was going to be a big pain in the ass. I tried running 100 mbit ethernet over the 15 meter long phone cable, but unsurprisingly it didn't work at all.<br>
	I tried wifi instead, but it turned out to be slower than the 50 mbit internet connection (to be fair I only tried 2x2 802.11n).<br>		I tried wifi instead, but it turned out to be slower than the 50 mbit internet connection (to be fair I only tried 2x2 802.11n over 2.4 GHz).<br>
	<br>		<br>
	If only there was a way I could use the existing phone cable........<br>		If only there was a way I could use the existing phone cable........<br>

Bobo1on1 op 18 apr 2012 om 00:16

2012-04-18T00:16:31Z

← Oudere versie		Versie van 18 apr 2012 00:16
Regel 14:		Regel 14:
	<br>		<br>
	But with the fiber connection, the router was in the place where the DSL splitter used to be. For the phone this didn't matter, I simply plugged the phone cable into the router and it worked.<br>		But with the fiber connection, the router was in the place where the DSL splitter used to be. For the phone this didn't matter, I simply plugged the phone cable into the router and it worked.<br>
	However connecting my desktop pc to the internet was going to be a little more difficult, running a network cable through the house was going to be a big pain in the ass. I tried running 100 mbit ethernet over the phone cable, but unsurprisingly it didn't work at all.<br>		However connecting my desktop pc to the internet was going to be a little more difficult, running a network cable through the house was going to be a big pain in the ass. I tried running 100 mbit ethernet over the 15 meter long phone cable, but unsurprisingly it didn't work at all.<br>
	I tried wifi instead, but it turned out to be slower than the 50 mbit internet connection (to be fair I only tried 2x2 802.11n).<br>		I tried wifi instead, but it turned out to be slower than the 50 mbit internet connection (to be fair I only tried 2x2 802.11n).<br>
	<br>		<br>

Bobo1on1: Nieuwe pagina aangemaakt met '{{Project |name=Ethernet over phone cable |contact=bobo1on1 |info=Run ethernet over a phone cable, using homeplug adapters. |status=Productie }} ==Faster interwebz== ...'

2012-04-18T00:14:19Z

Nieuwe pagina aangemaakt met '{{Project |name=Ethernet over phone cable |contact=bobo1on1 |info=Run ethernet over a phone cable, using homeplug adapters. |status=Productie }} ==Faster interwebz== ...'

Nieuwe pagina

{{Project
|name=Ethernet over phone cable
|contact=bobo1on1
|info=Run ethernet over a phone cable, using homeplug adapters.
|status=Productie
}}

==Faster interwebz==

Recently I upgraded my internet connection, from a 4 mbit down/1 mbit up ADSL connection to a 50 mbit up/down fiber connection (including phone service), which is really great.
However, I was then faced with a common problem, how to get a network connection from the router, which was installed near the fuse box, to my computer. 
 
When I was still using ADSL, I had a DSL splitter connected to the phoneline (which enters the house at the same place as the optical fiber cable), from which a phone cable runs to the phone, and another phone cable to the room where the computer is, with the ADSL modem connected there, and a network cable connecting the computer to the ADSL modem. 
 
But with the fiber connection, the router was in the place where the DSL splitter used to be. For the phone this didn't matter, I simply plugged the phone cable into the router and it worked. 
However connecting my desktop pc to the internet was going to be a little more difficult, running a network cable through the house was going to be a big pain in the ass. I tried running 100 mbit ethernet over the phone cable, but unsurprisingly it didn't work at all. 
I tried wifi instead, but it turned out to be slower than the 50 mbit internet connection (to be fair I only tried 2x2 802.11n). 
 
If only there was a way I could use the existing phone cable........ 
 

==Hardware==

And then I thought about homeplugs, if those things can manage to get a reasonable amount of data over the mains wiring, surely they must work absolutely wonderful over a phone cable. 
So I decided to try it out, and started by buying a set of TP-Link TL-PA511 homeplug adapters.
 
 
[[Image:Homeplugs.JPG|300px]]
 
 
The homeplug adapters can be powered with 100 to 240 volts AC, I wasn't about to connect the mains wiring to the phone cable, but luckily I had a 30 VA 230 to 115 volts transformer to power the homeplugs, and a housing of computer power supply to put the transformer in. The power supply's connector has a netfilter built in, which helps to block high frequency interference from the mains, although I doubt that those frequencies are passed by the transformer. The transformer is protected by a 160 mA fuse in series with the primary winding (white fuseholder with red wires), and the phoneline and homeplugs are protected by a 125 mA fuse in series with the secondary winding of the transformer (black panel mount fuseholder on the right).
 
 
[[Image:Transformer in box.JPG|300px]]
 
 
I connected a power socket to the transformer, and a piece of phone cable with a ferrite bead to reduce high frequency interference, the ferrite bead acts as a common mode choke, which passes differential currents but blocks the common mode.
Inside the power socket I connected too 100µH inductors in series with the wires connected to the transformer, to filter high frequencies, however it also worked fine without the inductors, and I suspect that these have too much parasitic capacitance to do any good filtering.
 
 
[[Image:Homeplug socket2.JPG|300px]] [[Image:Homeplug socket.JPG|300px]]
 
 
I used a pair of T-connectors to connect the homeplug adapter to the existing phone cable in the house.
 
 
[[Image:Homeplug connectors.JPG|300px]]
 
 
This is the complete setup at the computer side:
 
 
[[Image:Homeplug total.JPG|300px]]
 
 
Near the router, the other homeplug is connected to the phoneline in the same way, using a piece of phone wire with a ferrite bead and T-connectors.
 
 
[[Image:Homeplug connectors2.JPG|300px]] [[Image:Homeplug router.JPG|300px]]
 
 
==Results==
I connected one homeplug to my desktop machine, and the other to my notebook (both are capable of gigabit ethernet) and checked the connection speed with the TL-PA511 Powerline Utility. It said 504 mbit, which I assume is the maximum.
 
 
[[Image:TL-PA511_Powerline_Utility.png]]
 
 
I then ran a test with iperf, and got an average throughput of 224 Mbits/sec both ways (but not at the same time of course), wow!
 
That was really surprising, I've read a lot of reviews about homeplugs before buying them, and never have I seen any homeplug setup reach this speed.
 
The average ping over the homeplugs is about 2 milliseconds, it's low enough but not as low as ethernet, luckily this doesn't have much influence on the network speed.