Please Help.
I want to convert usb to Ethernet Net Adopter Can anyone Suggest me the circuit diagram of this connection. below i mention pic
this adopter is not available in my country So i have decided to make this one.
Thank You.
Electronic – usb to ethernet adaptor circuit diagram
communicationNetworkpower electronics
Related Solutions
It may be quite some trouble to find a relay formally rated with the needed bandwidth, and design the system to maintain characteristic impedance throughout, though in practice you may find that an ordinary one and not worrying about that works. With some thought, you could probably make it work by interrupting only one or two lines rather than all of them.
A lot of professional-grade network equipment does have the capability to enable/disable ports on remote command, often used precisely for the case of isolating infected machines which you mentioned. Even a consumer grade device such as a wifi router running customized firmware could probably do so at least on the scale of all of its downstream ports; though you'll have the added headache of making sure it's wifi is disabled. Atmel used to off an embedded linux evaluation platform for their AVR32 chip with dual ethernet configured as a gateway - one of those would do the job if you can still get one.
And there's always putting a locking cover on the box. This has some advantages in that securing it becomes part of deploying/removing the kiosk, and also that there's a chance staff would notice if the cover were left open.
Finally realize that securing the physical network should be only the first line of defense.
you can use a coupling capacitor or a high pass filter The capacitor will block the DC but AC will pass.
Best Answer
Those adapters are completely useless. They do not actually convert USB to Ethernet at all; they just connect the four pins of a USB connector randomly to four pins of the RJ45 connector. Plugging a USB device into a network jack using this adapter would not do anything useful, and might even cause damage to the USB device that was plugged into it.
An actual USB to Ethernet adapter would be much more complicated. Its exact design would depend on what types of USB devices it needed to work with, and what it was supposed to do with them. (What do you expect to happen when you plug a keyboard, a camera, or a hard disk into a network, after all? There's no obvious single way for this to work.)