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  2. Hillsborough Area Regional Transit - Wikipedia

    en.wikipedia.org/wiki/Hillsborough_Area_Regional...

    Hillsborough Area Regional Transit (also known as the Hillsborough Transit Authority [3] (HART)) provides public transportation for Hillsborough County, Florida.The agency operates fixed-route local and express bus service, paratransit service, demand-response service, MetroRapid service, and the TECO Line Streetcar system.

  3. Highway Addressable Remote Transducer Protocol - Wikipedia

    en.wikipedia.org/wiki/Highway_Addressable_Remote...

    The HART Communication Protocol (Highway Addressable Remote Transducer) is a hybrid analog+digital industrial automation open protocol. Its most notable advantage is that it can communicate over legacy 4–20 mA analog instrumentation current loops, sharing the pair of wires used by the analog-only host systems.

  4. Bell 202 - Wikipedia

    en.wikipedia.org/wiki/Bell_202_modem

    In addition, Bell 202 is the basis for the most commonly used physical layer for the HART Communication Protocol - a communication protocol widely used in the process industries. Surplus Bell 202 modems were used by amateur radio operators to construct the first packet radio stations, despite its low signalling speed.

  5. Contact AOL customer support

    help.aol.com/articles/account-management...

    In addition to the support options listed above, paid members also have access to 24/7 phone support by calling 1-800-827-6364. Popular Products. Account; AOL Mail;

  6. Housatonic Area Regional Transit - Wikipedia

    en.wikipedia.org/wiki/Housatonic_Area_Regional...

    Housatonic Area Regional Transit, known popularly as HARTransit (formerly as HART), is the provider of public transportation for Danbury, Connecticut and surrounding communities. HARTransit was founded in 1972 as the Danbury-Bethel Transit District by the two municipalities.

  7. Regional Bell Operating Company - Wikipedia

    en.wikipedia.org/wiki/Regional_Bell_Operating...

    A "Baby Bell" is a local telephone company in the United States that was in existence at the time of the breakup of AT&T into the resulting Regional Bell Operating Companies (RBOCs). Sometimes also referred to as an "ILEC" (Incumbent Local Exchange Carrier) they were the former Bell System or Independent Telephone Company responsible for ...

  8. The Best and Worst Songs from 1985 (According to Our Editors)

    www.aol.com/entertainment/best-worst-songs-1985...

    You can witness the fascinating mesh of performances—from Gordon Lightfoot and Neil Young, to Anne Murray and Corey Hart—in a feature-length documentary released in December of that year ...

  9. Current loop - Wikipedia

    en.wikipedia.org/wiki/Current_loop

    This circuit is polarity-sensitive. If a telephone company cable splicer accidentally reversed the conductors, selecting channel 2 would lock the transmitter on. Each current level could close a set of contacts, or operate solid-state logic, at the other end of the circuit. That contact closure caused a change of state on the controlled device.