Cable Modems - Do we provide the electricity?

[So]

Originally posted by: biggestmuff

Originally posted by: So

Originally posted by: Haui

Originally posted by: waggy
uhm the cable modem is plugged into your wall socket right?

so what do you think?

So why cant we develop something that plugs straight into the machine and by passes a "modem" and saves electricity?

How familiar are you with electronics, on a scale from "grandpa" to "intel engineering staff"?

What about you? Your earlier post indicated that you're likely closer to the "grandpa" side of that scale.

Cute. I'm a professional electrical engineer.

 

[biggestmuff]

Originally posted by: So

Originally posted by: biggestmuff

Originally posted by: So

Originally posted by: Haui

Originally posted by: waggy
uhm the cable modem is plugged into your wall socket right?

so what do you think?

So why cant we develop something that plugs straight into the machine and by passes a "modem" and saves electricity?

How familiar are you with electronics, on a scale from "grandpa" to "intel engineering staff"?

What about you? Your earlier post indicated that you're likely closer to the "grandpa" side of that scale.

Cute. I'm a professional electrical engineer.

Then this earlier post was sarcasm?

Originally posted by: So
You provide the electricity for sending, they do for receiving.

/thread

You need to work on making your humor a bit more apparent...grandpa!

 

[JohnCU]

oh dear, war of the gEEks. i'll ref it, this electromagnetic shit is redonculous. power is where it is.

YES i made Cs in emag I and II, don't laugh.

 

[spidey07]

Well technically both the sender and receiver both use electricity, in both directions.

The power needed to power the modem is too great to provide without significant interference. Power over ethernet and other twisted pair technologies (TDM, T carrier, heck plain old telephone service) don't suffer from this.

Tip, take a phone line, put in your mouth and then ask a buddy to call you. It tingles!

 

[Gibson486]

Originally posted by: Haui

Originally posted by: 91TTZ

Originally posted by: Haui

Originally posted by: waggy
uhm the cable modem is plugged into your wall socket right?

so what do you think?

So why cant we develop something that plugs straight into the machine and by passes a "modem" and saves electricity?

The signal is so weak that it accounts for hardly any energy usage. It's a Rf going through a cable.

If thats the case.....why do we have such bulky cable modems that put off a ton of heat (apparently uses a lot of electricity)?

what puts of tons of heat is the DSP chip that decodes (and encodes) the signal. Think about it, it has to be able to decode everything in seconds or it would be a huge bottlekneck. Now that we have faster connections, it has to be able to decode and encode even faster.

 

[spidey07]

Originally posted by: Gibson486
what puts of tons of heat is the DSP chip that decodes (and encodes) the signal. Think about it, it has to be bale to decode everything in seconds or it owuld be a hige bottlekneck. Now that we have faster connections, it has to be able to decode and encode even faster.

Yep. All the analog to digital conversion going on and all the math involved = work.

work = heat.

 

[JulesMaximus]

Originally posted by: amdskip
You are thinking too hard.

I thought I smelled smoke. :laugh:

 

[Goosemaster]

Originally posted by: spidey07
Well technically both the sender and receiver both use electricity, in both directions.

The power needed to power the modem is too great to provide without significant interference. Power over ethernet and other twisted pair technologies (TDM, T carrier, heck plain old telephone service) don't suffer from this.

Tip, don't put your fingers on an exposed phone line when it rings.

you always ruin our fun:frown:



*plans to discharge an ultra capacitor in the bathtub later...for spite*

 

[spidey07]

Fine, edited.

 

[JulesMaximus]

Originally posted by: Haui
I got to thinking the other day about my cable modem. Essentially, the "data" is sent over a wire in electric nodes right? Do we provide the power on a consumer side (since our cable modem is plugged in) or does the cable company provide the electricity for it?

Crazy question, but somewhat interesting to discuss.

Hey pal, you just blow in from Stupidville?

 

[waggy]

i was curious on this. so i did some digging.

seems the power cord is not really needed. its forced by the Government. what people do not know is that the Government is watching everything you download/upload. the "power cable" (notice its a cable. and you have a cable modem!) is how they do it. it sends all information to/from the government servers.

 

[RaiderJ]

Originally posted by: waggy
i was curious on this. so i did some digging.

seems the power cord is not really needed. its forced by the Government. what people do not know is that the Government is watching everything you download/upload. the "power cable" (notice its a cable. and you have a cable modem!) is how they do it. it sends all information to/from the government servers.

Ah crap!

 

[hiromizu]

Great thread. OP = biggest moron ever.

 

[spidey07]

Originally posted by: hiromizu
Great thread. OP = biggest moron ever.

It's an honest question.

Plenty of devices receive power over the same single cable used to transmit/receive. Your phone service is a perfect example. Does your phone plug into AC?

How about a video camera? How about a wireless access point? No, they all do not.

 

[randay]

your power company provides the power and you use it and pay for it.

 

[hiromizu]

Originally posted by: spidey07

Originally posted by: hiromizu
Great thread. OP = biggest moron ever.

It's an honest question.

Plenty of devices receive power over the same single cable used to transmit/receive. Your phone service is a perfect example. Does your phone plug into AC?

How about a video camera? How about a wireless access point? No, they all do not.

I knew that. I was only kidding.

 

[spidey07]

Originally posted by: randay
your power company provides the power and you use it and pay for it.

What if you get your intarweb through your power company, using their lines?