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ul standard

Discussion in 'Security Alarms' started by buco, Apr 25, 2006.

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  1. buco

    buco Guest

    I don't remember the standard number but do banks and the like have a
    direct connection to the police department or do they get there via
    the CS
     
  2. J. Sloud

    J. Sloud Guest

    Depending on the exact UL certificate issued, they may have either a
    direct connection to an approved monitoring location or a connection
    to a central station. There are many variations in UL certifications
    for mercantile alarms. If there is a requirement for line security,
    such as UL Grade AA, then you must provide an approved means of
    supervising the connection to the monitoring location. This can be
    accomplished via a dedicated line, a two-way radio, or via network
    communication. The standard that specifies these requirements is
    UL681.
     
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