Adorable, Raldy N., <br/><br/>
Centralized ac power switching control system /  
Raldy N. Adorable, Arnel C. Bongcayao, Jr., Angelica G. Lanzuela. 
 - Nabua, Camarines Sur  Camarines Sur Polytechnic Colleges,  2008. 
 - 64 leaves. 
<br/><br/>Undergraduate Theses (BSECE) - Electronics Engineering. 
<br/><br/>Includes bibliographical references. 
<br/><br/> To develop a centralized ac power switching control system that is beneficial to home owners and some office establishments that is used for convenience and automation. The device has three modes of operation: manual mode, automatic mode, and overwrite mode. However, the study is limited only to 8 slots and can accommodate a total load capacity of 220V/12A. It can accommodate common household appliances like eletric fan, TV, DVD player and others which utilie nominal power. The device makes use of the printer parallel port and LPT or DB 25 connector to connect the device to the printer parallel port and LPT or DB 25 connector to connect the device to the computer. In addition, the device is not capable to store or save previously used or setting that once you turn on again the PC you can retrieve the previous settings. Furthermore, the main interface program or software is compatible only to windows XP version.