Ethernet-to-Coax kit extends your Home Network - Canadian TV, Computing and Home Theatre Forums

hugh · 2009-01-13, 03:03 PM

D-Link last week re-announced the DXN221 Coax Ethernet Adaptor Kit which allows users to extend their wired home network to any other part of the home by tapping into their existing cable wiring.

JohnnyG · 2009-01-13, 03:25 PM

Good stuff. MoCA products are also coming from Netgear and Linksys.

lawman · 2009-01-13, 03:53 PM

Nice product. Pretty expensive...hope to see prices drop further.

asdquet · 2009-01-13, 06:22 PM

I have to ask....

What prevents your neighbour from accessing your network? Considering the entire cable plant on my street (and most streets) is simply connected by a series of two-way splitters, what prevents my neighbors from being able to access my network? I assume there must be some sort of security similar to WEP or WPA encryption on WiFi connections, but by connecting to the coax in your house you're beaming your signal straight into all the other houses connected to your cable plant in your area. Unless you disconnect the incoming coax to your house but, of course, you can only do that if you don't have cable TV/internet/home phone.

i hate tv · 2009-01-13, 06:30 PM

I suspect for this to work, the cable in question will have to be disconnected from the cable tv network, and used soley to connect the ethernet from router to computer

PPL4GOLF · 2009-01-13, 07:10 PM

When you look at the sample photos, these is a manual switch to toggle between cable and network...

To me, that's an extreme inconvenience and I probably won't use it even if it were given to me...let alone the prohibited price.

lawman · 2009-01-13, 07:19 PM

Very, very good point raised regarding security over the coax. I can't see how they would have released such a product without taking that into account. But you never know!

daymz · 2009-01-13, 07:21 PM

I don't see the article mentions any kind of line or data rates being achieved with this device. Which is unfortunate, given one of its major selling points is to replace Wi-Fi because Wi-Fi is too slow for HD streaming.

Anyone has info on this ?

timlocke · 2009-01-13, 08:56 PM

Plus ca change and all that. Ethernet over coax was the thing in 1990 before 10BaseT was invented. For home use, especially injected onto an Analog coax circuit it seems like a good idea.

Speed wise it will certainly get 10Mbs and probably a lot more

Yalbik · 2009-01-14, 12:21 AM

I'll jump on if it drops to the the $100-$120/kit ($50-$60 per adapter) price.

I don't really care about security as I would be more than happy to disconnect the coax lines I'd use.

What I want is whole-house ethernet so I can send my PVR signal to extenders in various rooms. Wi-fi just doesn't cut it for media in my area, but the house is already pre-wired with coax in most rooms, so this would be perfect

hugh · 2009-01-14, 08:07 AM

Quote:

I don't see the article mentions any kind of line or data rates being achieved with this device.

MoCA alliance says 175 Mbps actual throughput (not theoretical)

Quote:

I suspect for this to work, the cable in question will have to be disconnected from the cable tv network, and used soley to connect the ethernet from router to computer

You are wrong. It operates above 850 MHZ so there is no interference with cable. The whole point of the technology is to deliver data though coax without interfering with cable.

JohnnyG · 2009-01-14, 12:58 PM

MoCA is not a brand new technology but it is new as a consumer add-on item.

For example, the FiOS fiber-to-the-home offering from Verizon in the US uses the MoCA standard to distribute it's TV signals throughout the home.

classicsat · 2009-01-16, 01:49 PM

Quote:

Originally Posted by asdquet

I have to ask....

What prevents your neighbour from accessing your network?

You install a low pass filter where the cable enters your home.

JohnnyG · 2009-01-16, 02:42 PM

Sure, but the data is encrypted between the 2 endpoints, so that really isn't necessary.

Frameboy · 2009-01-18, 12:34 PM

It looks to me like it's a coax in, and a TV / Ethernet out. Not either / or but both.

It seems like a great idea... but the price is too high. I got the D-Link Ethernet over power for $150 and it does up to 200 mbps.

That works great for me. The only issue is that I can't plug it into a power bar so it takes up an electrical socket.

Now... if this were $150? I'd consider it if my Ethernet over power failed.

2009-01-13, 03:03 PM	#1
hugh Member #1 Join Date: Dec 2001 Location: Toronto Posts: 47,492	Ethernet-to-Coax kit extends your Home Network D-Link last week re-announced the DXN221 Coax Ethernet Adaptor Kit which allows users to extend their wired home network to any other part of the home by tapping into their existing cable wiring. __________________ As of January 2012, I am no longer the owner of the Digital Home website. If you have questions about the operation of the site, please contact VSAdmin. For personal inquiries contact me at the Hugh Thompson website.

2009-01-13, 03:53 PM	#3
lawman Join Date: Jun 2006 Location: Ottawa, Rogers Posts: 551	Nice product. Pretty expensive...hope to see prices drop further. __________________ Panasonic TH50PX60U / Denon AVR-990 / 8642HD PVR/ Panasonic DVD-S77 / Pioneer DV-563A / Playstation3 / Belkin PF60

2009-01-13, 07:10 PM	#6
PPL4GOLF Join Date: Jun 2007 Location: Toronto Posts: 904	When you look at the sample photos, these is a manual switch to toggle between cable and network... To me, that's an extreme inconvenience and I probably won't use it even if it were given to me...let alone the prohibited price. __________________ LG55LW5000/Denon3313/MirageOMD5+Nanosat+MM8/ClearStream2/CM7778+3414 SSGPN50A550/OptomaHD33/Onkyo717/KEF3005/Velo15"

2009-01-13, 07:19 PM	#7
lawman Join Date: Jun 2006 Location: Ottawa, Rogers Posts: 551	Very, very good point raised regarding security over the coax. I can't see how they would have released such a product without taking that into account. But you never know! __________________ Panasonic TH50PX60U / Denon AVR-990 / 8642HD PVR/ Panasonic DVD-S77 / Pioneer DV-563A / Playstation3 / Belkin PF60

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2009-01-13, 03:25 PM	#2
JohnnyG Veteran Join Date: Dec 2001 Location: North York, Ontario Posts: 10,405	Good stuff. MoCA products are also coming from Netgear and Linksys.

2009-01-13, 06:22 PM	#4
asdquet Join Date: Aug 2006 Posts: 52	I have to ask.... What prevents your neighbour from accessing your network? Considering the entire cable plant on my street (and most streets) is simply connected by a series of two-way splitters, what prevents my neighbors from being able to access my network? I assume there must be some sort of security similar to WEP or WPA encryption on WiFi connections, but by connecting to the coax in your house you're beaming your signal straight into all the other houses connected to your cable plant in your area. Unless you disconnect the incoming coax to your house but, of course, you can only do that if you don't have cable TV/internet/home phone.

2009-01-13, 06:30 PM	#5
i hate tv Join Date: Mar 2007 Posts: 2,317	I suspect for this to work, the cable in question will have to be disconnected from the cable tv network, and used soley to connect the ethernet from router to computer

2009-01-13, 07:21 PM	#8
daymz Join Date: Oct 2008 Location: Montreal Posts: 39	I don't see the article mentions any kind of line or data rates being achieved with this device. Which is unfortunate, given one of its major selling points is to replace Wi-Fi because Wi-Fi is too slow for HD streaming. Anyone has info on this ?

2009-01-13, 08:56 PM	#9
timlocke Join Date: Mar 2007 Location: Guelph Posts: 549	Plus ca change and all that. Ethernet over coax was the thing in 1990 before 10BaseT was invented. For home use, especially injected onto an Analog coax circuit it seems like a good idea. Speed wise it will certainly get 10Mbs and probably a lot more

2009-01-14, 12:21 AM	#10
Yalbik Join Date: Nov 2006 Posts: 9	I'll jump on if it drops to the the $100-$120/kit ($50-$60 per adapter) price. I don't really care about security as I would be more than happy to disconnect the coax lines I'd use. What I want is whole-house ethernet so I can send my PVR signal to extenders in various rooms. Wi-fi just doesn't cut it for media in my area, but the house is already pre-wired with coax in most rooms, so this would be perfect

2009-01-14, 12:58 PM	#12
JohnnyG Veteran Join Date: Dec 2001 Location: North York, Ontario Posts: 10,405	MoCA is not a brand new technology but it is new as a consumer add-on item. For example, the FiOS fiber-to-the-home offering from Verizon in the US uses the MoCA standard to distribute it's TV signals throughout the home.

2009-01-16, 02:42 PM	#14
JohnnyG Veteran Join Date: Dec 2001 Location: North York, Ontario Posts: 10,405	Sure, but the data is encrypted between the 2 endpoints, so that really isn't necessary.

2009-01-18, 12:34 PM	#15
Frameboy Join Date: Dec 2007 Posts: 129	It looks to me like it's a coax in, and a TV / Ethernet out. Not either / or but both. It seems like a great idea... but the price is too high. I got the D-Link Ethernet over power for $150 and it does up to 200 mbps. That works great for me. The only issue is that I can't plug it into a power bar so it takes up an electrical socket. Now... if this were $150? I'd consider it if my Ethernet over power failed.