Enclosure Installation
Version 3.7 Telephone Access System Installation and Operation Manual 23 (119)
LT-969 Copyright January 2017
2.1 Grounding the Telephone Access System
Grounding reduces the risk of electrical shock by providing an alternate escape
route for the electrical current. Telephone Access System is equipped with a
16 gauge electrical wire attached to the panel chassis ground post.
To ground the Telephone Access System attach one end of the supplied cable to
a suitable grounding wire and connect it to the site ground.
2.2 Installing the Enclosures and Lobby Control Unit
Lobby Control Units use one of the following three types of Lobby Control Unit
enclosures:
Universal Series. The Universal Series are surface or semi-flush mounted with
the lobby Lobby Control Units. Optional flush trim rings are available for semi-
flush and flush installations. The semi-flush trim is the TX3-UFT. A rain hood is
included allowing for outdoor use.
Universal Slim-Line Series. The Universal Slim-Line series enclosure houses
the TX3-200-4U model and can be surface or semi-flush mounted. The semi-
flush trim is the TX3-USFT.
Continental Series. The Continental Series enclosure for Lobby Control Units
are flush mounted.
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