How to transfer fonts from Google Fonts?

Hello!

Trying to move the font Open Sans Condensed from Google Fonts. Via the link:

<link href="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,300 italic,700&subset=latin,cyrillic" rel="stylesheet" type="text/css">

All is working well. Download files, connect to the CSS:

@font-face {
 font-family: 'Open Sans Condensed'; 
 font-style: normal;
 font-weight: 700;
 src: local('Open Sans bold'), local('Open Sans bold'), url("/fonts/OpenSans-CondBold.ttf") format('ttf');
}
@font-face {
 font-family: 'Open Sans Condensed';
 font-style: italic;
 font-weight: 400;
 src: local('Open Sans bold'), local('Open Sans bold'), url("/fonts/OpenSans-CondLightItalic.ttf") format('ttf');
}
@font-face {
 font-family: 'Open Sans Condensed';
 font-style: normal;
 font-weight: 400;
 src: local('Open Sans bold'), local('Open Sans bold'), url("/fonts/OpenSans-CondLight.ttf") format('ttf');
}

Does not want to work. 404 errors with downloading the font in the console not ship.
I tried to give individual names in a font-family: 'Open Sans Condensed Italic'; and would assign the selector does not help too.
Tell me what to do?
Tried to connect to zakodirovana base64 form is not working.