• TermDescription
  • Routing Level

    A Routing Level is Computer based or workstation based. A Routing Level determines whether or not Events or Alarms are sent to specific computers. Different events may not be important to an operator across the building or campus from the operator. A Routing Level provides the computer to filter out the events that are important to it.

  • RTU

    A generic term that represents any equipment or software with which Intelli-Site integrates. A card reader, a DVR, a RFID reader, are all examples of RTUs.

  • RTUs

    More than one RTU, a generic term that represents any equipment or software with which Intelli-Site integrates. A card reader, a DVR, an RFID reader, are all examples of RTUs.

  • Shunt

    Electrical term for bypassing. In access control it is common to shunt an alarm sensor, such as a door position switch, when a door is about to be opened for valid access or egress.

  • Single pole, double throw (SPDT)

    A term used to describe a switch or relay contact from (1form C), that has a normally open and a normally closed contact with a common connection.

  • Single pole, single throw (SPST)

    A switch with one moving and one stationary contact, available either normally open (NO) or normal closed.

  • Solenoid

    An electro-mechanical device that operates the lock bolt. When electricity is applied, a mechanical motion is obtained that moves the bolt.

  • SP

    Service Pack - a collection of updates and fixes, called patches, for an operating system. Service packs also often include new features in addition to fixes.

  • Spike

    A momentary increase in electric current Spikes can damage electronic equipment.

  • TCP/IP

    Transmission Control Protocol/Internet Protocol) A communications protocol developed under contract from the U.S. Department of Defense to internetwork dissimilar systems.TCP/IP is the protocol of the Internet and the global standard for local area networks and wide area networks

  • Timezone

    Time periods that control devices. Examples of how they are used are to allow or deny physical card holder access to doors based on time of day, day of week, or on a holiday. They are often used to unlock a main facility entrance from the opening of the business day to the close of business.

  • Transient

    Any increase or decrease in the excursion of voltage, current, power, heat and so forth, above or below a nominal value that is not normal to the source.

  • Twisted Pair

    A cable that consists of one or more pairs of insulated wires that are twisted around one another. Twisted pair is often specified for circuits carrying data.

  • UNC

    UNC path Universal/Uniform Naming Convention. A UNC path describes the location of a volume, directory, or file. The format for a UNC path is \\server\volume\directory\file and is not case-sensitive. For example: \\Shared1_svr\Shared1\WGroups\Network\Orders.xls Rather than describe the location of a file or directory by drive letter, the Network Group will typically communicate a UNC path to describe the actual location of a file or directory. Windows drive letter mappings are arbitrary, whereas a UNC path is specific and applies to all operating systems. Note: The UNC method started with the UNIX operating system. UNIX uses the forward-slash character as a path separator. Many network services (ex. FTP) have their origins in the UNIX operating system, so they use forward-slashes instead of the backslashes that DOS/Windows uses. It is important to recognize this distinction when using these services.

  • UNC Path

    UNC path Universal/Uniform Naming Convention. A UNC path describes the location of a volume, directory, or file. The format for a UNC path is \\server\volume\directory\file and is not case-sensitive. For example: \\Shared1_svr\Shared1\WGroups\Network\Orders.xls Rather than describe the location of a file or directory by drive letter, the Network Group will typically communicate a UNC path to describe the actual location of a file or directory. Windows drive letter mappings are arbitrary, whereas a UNC path is specific and applies to all operating systems. Note: The UNC method started with the UNIX operating system. UNIX uses the forward-slash character as a path separator. Many network services (ex. FTP) have their origins in the UNIX operating system, so they use forward-slashes instead of the backslashes that DOS/Windows uses. It is important to recognize this distinction when using these services.

  • Volt (V)

    A unit of electromotive force, It is the difference of potential required to make a current of one ampere through a resistance of one ohm.

  • Voltage

    The term most often used (in place of electromotive force, potential, potential difference or voltage drop) to designate electrical pressure that exists between two points and is capable of producing between the two points.

  • Voltage drop

    Voltage loss experience by electric circuit due to two principal factors: (1) wire size and (2) length of wire runs.

  • Zone

    A portion of a large protected area.