Alarm of a telecommunications terminal connected to a LAN

Details Alarm of a telecommunications terminal connected to a LAN Alarm of a telecommunications terminal connected to a LAN

2006-06-27

2006-06-27

Harold, Jefferey F. (Department: 2646)

Telephonic communications

Subscriber line or transmission line interface

Power supply

C379S386000, C379S400000

Reexamination Certificate

active

07068781

ABSTRACT:
Before any supply of remote power to a telecommunications terminal connected to a local area network, the Ethernet equipment must recognize the power class of the terminal by measuring a specific electrical signature of the terminal via their interconnection. If the Ethernet equipment is unable to supply the required power, then it will send a specific signal via the interconnection which will activate an alarm on the terminal. The possibility to be alerted by a specific alarm from the terminal if no remote power can be supplied to it, will advantageously inform the terminal user of the problem and allow the user to look for an alternative.

REFERENCES:
patent: 6115468 (2000-09-01), De Nicolo
patent: 6218930 (2001-04-01), Katzenberg et al.
patent: 6804351 (2004-10-01), Karam
patent: 1100226 (2001-05-01), None

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