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simple modem, cat5e, and coaxial cable questions

post #1 of 10
Thread Starter 
new to most of this stuff, just want to make sure I understand some basic stuff.

I have a http://www.motorola.com/us/SBG901-SURFboard%C2%AE-Wireless-Cable-Modem/70286.html , which lists capable speeds of 38mbps down and 30mbps up. If the internet service I pay my ISP for is below those numbers (25up and 5down I think is what we have), then having a modem capable of higher speeds would gain me nothing in terms of "faster" internet, correct?

next question, I have a couple spots in the house I want to have hardwired internet access to, but they are only wired with coaxial and not with cat5e (everyplace else has cat5e, these spots were finished by someone else after the house was built). Is there a way to convert cat5e that comes after my modem (a switch after my modem actually) to coaxial and then back to cat5e at the other end to plug into my pc?

Thanks
 
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post #2 of 10
Yes your modem is fine at those speeds. I think that the coaxial hardwiring are just different outlets for your modem. But someone may have another suggestion. smile.gif
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by DoctorNick View Post

Yes your modem is fine at those speeds. I think that the coaxial hardwiring are just different outlets for your modem. But someone may have another suggestion. smile.gif

thanks that's what I thought about the modem
 
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post #4 of 10
I don't believe there are any practical ways of running Ethernet over your old coaxial connections.

There used to be an Ethernet-over-coax standard but it's old, uses outdated hardware, requires bus topology and terminators, and tops out at 10 Mbps. And I'm sure the impedance doesn't match what coax for TV has. I don't believe there is any modern equivalent since twisted pair star networks are far easier to maintain.
post #5 of 10
1) That's correct.
2) You wouldn't want to.
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by mott555 View Post

I don't believe there are any practical ways of running Ethernet over your old coaxial connections.

There used to be an Ethernet-over-coax standard but it's old, uses outdated hardware, requires bus topology and terminators, and tops out at 10 Mbps. And I'm sure the impedance doesn't match what coax for TV has. I don't believe there is any modern equivalent since twisted pair star networks are far easier to maintain.

Quote:
Originally Posted by beers View Post

1) That's correct.
2) You wouldn't want to.

thanks guys

crap

gonna have to figure out a way to discretely run a couple cat5e runs...
 
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post #7 of 10
Quote:
Originally Posted by 7slinger View Post

new to most of this stuff, just want to make sure I understand some basic stuff.

I have a http://www.motorola.com/us/SBG901-SURFboard%C2%AE-Wireless-Cable-Modem/70286.html , which lists capable speeds of 38mbps down and 30mbps up. If the internet service I pay my ISP for is below those numbers (25up and 5down I think is what we have), then having a modem capable of higher speeds would gain me nothing in terms of "faster" internet, correct?
Correct.
Quote:
Originally Posted by 7slinger View Post

next question, I have a couple spots in the house I want to have hardwired internet access to, but they are only wired with coaxial and not with cat5e (everyplace else has cat5e, these spots were finished by someone else after the house was built). Is there a way to convert cat5e that comes after my modem (a switch after my modem actually) to coaxial and then back to cat5e at the other end to plug into my pc?

Thanks
There's no practical way to run ethernet over coax in the way you desire. You could run cat5e along with the coax and get different wall plates. You'd also need a switch for this.

Also, if you have wifi enabled it looks like that modem can only do WEP... if so, that's a problem.
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post #8 of 10
There's always powerline adapters that effectively run a patch cable over your electrical wiring.

Baseline research:
http://reviews.cnet.com/8301-3132_7-57580482-98/top-five-power-line-adapters-when-wi-fi-fails-you/
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by BlackVenom View Post

Correct.
There's no practical way to run ethernet over coax in the way you desire. You could run cat5e along with the coax and get different wall plates. You'd also need a switch for this.

Also, if you have wifi enabled it looks like that modem can only do WEP... if so, that's a problem.

thanks for the response.

if I was running wire right now then no problem, but that ship sailed 10 years ago when the sheetrock went up. I'm realizing now that even if I could use coaxial the way I was describing I don't think it would solve my problem, because I need the coaxial for the cable box. the wife isn't ready to give up cable yet mad.gif

WEP is greek to me, why is it a problem? edit

WPA PSK is what I have set up, though it doesn't look like the modem supports WPA2. been a loooooong time since I set this thing up

Quote:
Originally Posted by beers View Post

There's always powerline adapters that effectively run a patch cable over your electrical wiring.

Baseline research:
http://reviews.cnet.com/8301-3132_7-57580482-98/top-five-power-line-adapters-when-wi-fi-fails-you/

there's a thought, I'll look into it
Edited by 7slinger - 3/17/14 at 3:14pm
 
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post #10 of 10
Quote:
Originally Posted by mott555 View Post

I don't believe there are any practical ways of running Ethernet over your old coaxial connections.

There used to be an Ethernet-over-coax standard but it's old, uses outdated hardware, requires bus topology and terminators, and tops out at 10 Mbps. And I'm sure the impedance doesn't match what coax for TV has. I don't believe there is any modern equivalent since twisted pair star networks are far easier to maintain.

You're thinking of something like 10Base2. Totally different cable than RG6.

There is HPNA for standard Ethernet over RG6. It's stupid expensive for adapters.
    
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