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Join Date: May 2012
Posts: 56

RJ45 Cable to USB Need Wiring Diagram

10/13/2012 1:38 AM

hello pls help me how to wired the rj45 to usb cable !!! i have a wifi router and he have a RJ45 por and rj45 cable and iwant to cut the one side rj45 cable to replace a USB female port, can you tell me the pin out wire to rj45 to connect to usb terminal or pls send me a daigram its much better so i can buil my project. thank you

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JohnDG
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#1

Re: Rj45 cable to USB need wiring diagram

10/13/2012 4:16 AM

There are 24 possible ways of directly wiring the connector. Some of them may damage one or both of the devices connected. None of them will work.

I suggest you buy an adapter.

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lyn
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#3
In reply to #1

Re: Rj45 cable to USB need wiring diagram

10/13/2012 10:31 AM

Looks like he may be able to look through the clear plastic cover of this model and draw his own wiring diagram.


Wait, if he gets the adapter, he won't need a diagram.

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RAMConsult
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#2

Re: Rj45 cable to USB need wiring diagram

10/13/2012 9:59 AM

It can't be done directly. Physically the cables and connectors have a different number of conductors, electrically they use different voltage levels and signalling protocols. Good luck using an adapter, make sure the one you buy works with your devices by reading the reviews.

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#4

Re: Rj45 cable to USB need wiring diagram

10/13/2012 12:05 PM

I should mention that not all RJ45 connectors use Ethernet protocols. A RJ45 connector on a router will likely use Ethernet protocol though.

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thccontrols
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#5

Re: RJ45 Cable to USB Need Wiring Diagram

10/13/2012 11:53 PM

its called a "USB Serial converter"

google for your local supplier or go online to find one! I did! BUT do not expect the speed you would get with a USB, they are kinda slow!
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aurizon
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#6

Re: RJ45 Cable to USB Need Wiring Diagram

10/14/2012 3:19 AM

USB is a high speed serial port. It has a +5 VDC line, a ground and a high speed twisted pair. An RJ45 contains 4 twisted pairs. There is no possible way to connect them with a passive wiring pattern. There are translation chips that run from the USB power and convert the RJ45 signal to USB bi-directionally and they are embedded in the adaptors that several people have suggested you buy. They are quite cheap. Do some work and find one that is capable of the 100 base T speed and the correct USB I, II, or III. (USB 1, 2 and 3)

USB-III is the latest and highest speed, many older machines do not support USB-III

(also called USB-3)

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JPV
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#7

Re: RJ45 Cable to USB Need Wiring Diagram

10/14/2012 12:55 PM

I agree with other comments about non-compatability of the two network types...

But if you just want the pin-out see http://pinouts.ru/SerialPortsCables/usb_cable_pinout.shtml

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Envelope Guy
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#8

Re: RJ45 Cable to USB Need Wiring Diagram

10/15/2012 11:30 AM

I got one of these adapters when my cable company installed my router. I didn't need to use it, and most likely you know someone who didn't need to use theirs. Ask around, I bet you can get one for free.
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Previous in Forum: Audio Subcarrier on 1.2 GHz Transmitter   Next in Forum: Installation of a Switch Parallel of Mosfet IR9530


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