Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

How does the ethernet cable communicate between the computer and router?

Status
Not open for further replies.
S

sadpony

Junior Member level 2
Joined
Jul 14, 2013
Messages
22
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
227
I read about the ethernet over twisted pair pin outs, there were some Tx+, Tx-, Rx+, Rx- pins. I didn't understand what are the different voltage levels on those pins. I actually want to turn ON and OFF a light source on the basis of 1s and 0s sent on those pins. Can anyone tell me what modulation technique is used and how can I separate individual pins and convert the data into series of 1s and 0s.

I want to connect light source to the router and photodiode to the computer.

Please do reply.
Thanking in advance.
 

The details of communication over ethernet are fairly complex.
The usual choice for a hobby project is an arduino with an ethernet shield, that makes it fairly easy.

The data encoding is different at 10/100/1000Mbps speeds, there is usually an isolation transformer in each ethernet port, the data has to be formatted into ethernet frames and it is normal to use another protocol such as tcp/ip inside the ethernet frames. For tcp/ip you usually also need to implement DHCP and ARP.

To learn some details of the hardware interface you can start with this wikipedia article.
https://en.wikipedia.org/wiki/Ethernet_over_twisted_pair
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top