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System for collecting from masters information independently collected from associated slaves in shelves of a telecommunications terminal

  • US 5,455,959 A
  • Filed: 08/19/1994
  • Issued: 10/03/1995
  • Est. Priority Date: 03/02/1992
  • Status: Expired due to Term
First Claim
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1. A telecommunications terminal having an automatic inventory retrieval system for collecting inventory and status information relating to printed circuit (PC) boards for use in separate printed circuit board housings of said telecommunications terminal, said telecommunications terminal comprising:

  • a cross-connect core, having network controls for providing master PC board address polling signals that occur at a master polling frequency on a terminal bus for providing the master PC board address polling signals; and

    a plurality of said PC board housings, each housing for housing PC boards connected to an associated serial link interface wherein said PC boards for each housing include;

    a plurality of slave PC boards connected to said associated serial link interface, each slave PC board having a selected address in said housing, each slave PC board responsive to slave address polling signals that occur at a slave polling frequency that is greater than said master polling frequency on said associated serial link interface, each slave PC board for providing on the associated serial link interface in response to a matching slave address and slave address polling signal, a slave response signal containing selected inventory and status information; and

    a master PC board for connection to said terminal bus and to said associated serial link interface, for providing the slave address polling signals on said associated serial link interface and responsive to the slave response signals, for providing said slave response signals on said terminal bus in response to a matching one of the master unit address polling signals, the master PC board having a selected master address;

    wherein the cross-connect core is responsive to the slave response signals on said terminal bus from said master PC board for said collecting inventory and status information.

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