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Conventions Used in This Manual
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Before you begin using this manual, it is important that you understand the meaning of the following symbols (icons).
U
L
These notes include specific information that must be followed if you are installing this system for a UL
Listed application.
These notes include information that you should be aware of before continuing with the installation, and
which, if not observed, could result in operational difficulties.
This symbol indicates a critical note that could seriously affect the operation of the system, or could cause
damage to the system. Please read each warning carefully. This symbol also denotes warnings about
physical harm to the user
.
Product model numbers (unless noted otherwise) represent ADT products. A 6-digit Stock Code Number replaces the 7-
digit type number used for ADT devices. For the convenience of the reader, when the 6-digit number is used for a given
item, the formerly used type number will be included in parenthesis. This type number is how the devices and systems
are referenced in UL reports and procedures.
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