| US 7,346,785 B2 | ||
| Structure cabling system | ||
| Amir Lehr, Tel Aviv (Israel); Ilan Atias, Haifa (Israel); Dror Korcharz, Bat Yam (Israel); and David Pincu, Holon (Israel) | ||
| Assigned to Microsemi Corp. - Analog Mixed Signal Group Ltd., Hod Hasharon (Israel) | ||
| Filed on Aug. 04, 2003, as Appl. No. 10/634,406. | ||
| Prior Publication US 2004/0037300 A1, Feb. 26, 2004 | ||
| Int. Cl. G06F 1/26 (2006.01) | ||
| U.S. Cl. 713—300 [713/320; 713/340] | 2 Claims |
| 1. A computer for use in a local area network the computer comprising:
a memory located within the computer;
a non-essential circuitry located within the computer;
a first internal power supply located within the computer and arranged to supply power to said memory and said non-essential
circuitry, said first internal power supply being fed power from an electrical mains;
a second internal power supply located within the computer and arranged to power said memory, said second internal power supply
being fed a limited power insufficient to power both said memory and said non-essential circuitry, said limited power received
via communication cabling from an external power source, said communication cabling comprising pairs of twisted copper wires
at least one of which is arranged to transmit both said received limited power and data for the computer; and
a controller receiving a control input from said first internal power supply indicative of said mains fed power availability,
said controller being operative, responsive to said control input indicating that said mains fed power of said first internal
power supply is not available, to supply power to said memory from said second internal power supply, said non-essential circuitry
not being powered by said second internal power supply.
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