The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2009
Filed:
Feb. 10, 2006
John A. Stock, Petaluma, CA (US);
Douglas A. Atkinson, Ashburn, VA (US);
Raul F. Fernandez, Miami, FL (US);
Thomas E. Conklin, Leesburg, VA (US);
Marc R. Bernard, Vienna, VA (US);
John A. Stock, Petaluma, CA (US);
Douglas A. Atkinson, Ashburn, VA (US);
Raul F. Fernandez, Miami, FL (US);
Thomas E. Conklin, Leesburg, VA (US);
Marc R. Bernard, Vienna, VA (US);
Tellabs Petaluma, Inc., Naperville, IL (US);
Abstract
An apparatus or corresponding method of managing Plain Old Telephone Service (POTS) lines in a Passive Optical Network (PON) to prevent an alarm system from generating an alarm during a software upgrade or maintenance of an Optical Network Terminal (ONT), Optical Line Terminal (OLT), or PON while maintaining the effectiveness of the alarm system. The ONT may store data related to a POTS line in nonvolatile memory. The ONT may activate the POTS line based on the data from the nonvolatile memory in an event of interruption in communications with an OLT prior to reestablishing communications with the OLT. The interruption in communications may be caused by an ONT reboot to complete an installation of a software upgrade. The ONT may energize the POTS line with a voltage in response to activating the POTS line to prevent the alarm system from generating the alarm.