Western Telematic Data/FaxModem Guide de l'utilisateur

United States Patent US007162521B2 (12) (10) Patent N0.: US 7,162,521 B2 Ewing et a]. (45) Date of Patent: *Jan. 9, 2007 (54) REMOTE POWER CONTROL SY

US 7,162,521 B2 7 module 200 includes a power supply and clock generator 212, a load sensor 214, a poWer-on sensor 216, a solid-state relay 218 and a

US 7,162,521 B2 device. SNMP management is not required for the enterprise power manger and the associated intelligent power modules. The intelligent

US 7,162,521 B2 11 applications Where it is too late to incorporate such func tionally, external plug-in assemblies are preferred such that olf-the-sh

US 7,162,521 B2 13 prises a clock generator With an output that coincides With each zero-crossing of the incoming alternating current poWer. 14. The n

US 7,162,521 B2 15 a power supply housing; a power manager agent application mounted in the hous ing and being connectable to the network communica ti

UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF CORRECTION PATENT NO. : 7,162,521 B2 Page 1 of 1 APPLICATION NO. : 10/806130 DATED : January

US 7,162,521 B2 Page 2 US. PATENT DOCUMENTS 6,029,092 A 2/2000 Stein 6,408,395 B1 6/2002 Sugahara et al. 6,496,103 B1 12/2002 Weiss et al. 6,507,273 B

U.S. Patent Jan. 9, 2007 Sheet 1 014 US 7,162,521 B2 .622 5.5: a _ .( mm: on 225058 533 .1 Sn: Wm 8 2n: Em? . 2n: mm. 32m: 1 V 5E mm 5:358 6:6 3. 633

U.S. Patent Jan. 9,2007 Sheet 2 M4 Fig. 2 ‘i001 iv apply a series of alternating current (AC) voltage pulses to an appliance with an on/off switch tha

Sheet 3 0f 4 US 7,162,521 B2 network tnmuumnm"mum-"n A Jan. 9, 2007 4 U.S. Patent O> 3.5m “I nnnnnnnnnnnnnnnnnnn 11¢ llllllllllllllllllll

U.S. Patent Jan. 9, 2007 Sheet 4 of4 US 7,162,521 B2 : neutraLout 236 Fig. 5 V_SENS 238

US 7,162,521 B2 1 REMOTE POWER CONTROL SYSTEM CO-PENDING APPLICATIONS This is a Continuation application of US. patent appli cation Ser. No. 10/758,11

US 7,162,521 B2 3 work management functions to be carried out between client equipment nodes and management agent nodes. SNMP is an application protoc

US 7,162,521 B2 5 e.g., by reducing the number of third party maintenance dispatches to remote locations. Another advantage of the present invention i