This part is a kind of semiconductor called 3C16475CS.
Function of this product has Baseline Switch 2226 Plus User Guide.
Manufacturers : 3Com
Image and pinout :

Some of the text within the PDF file :
Baseline Switch 2226 Plus User Guide Installationsanleitung 3C16475CS www.3com.com Part No. 10015240 Rev. AA Published August 2006 3Com Corporation • 350 Campus Drive • Marlborough • MA USA 01752-3064 Copyright © 2006, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation. 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change. 3Com Corporation provides this documentation without warranty, term, or conditio [ ... ]
3C16475CS PDF Datasheet Download
