Digital telecommunication. Pt 1, Basic information / 
Siemens Aktiengesellschaft 
 - 60 pages :  illustrations ;  17 cm. 
<br/><br/><label>ISBN: </label>3800914808 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital communications.<br/>Data transmission systems<br/>Pulse modulation (Electronics)
<br/><br/><label>Dewey Class. No.: </label>621.380413