Microtel Series 500 - Manual (Page 12)

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II.A. System Description and Familiarization - Chassis Cards
The following section is intended to familiarize the user with the basic components of
the Microtel MCS 500 Dialer. The system is housed inside a NEMA12 fiberglass
enclosure. On the bottom side of the enclosure are five, 3/4 inch conduit-size holes for
the routing of power lines, telephone lines, the system microphone, and alarm channel
sensing conductors, and printer output connections. Inside the door of the enclosure is
the system chassis which is divided into several sections. These sections and the
circuit elements which reside therein are described below. The following figure
illustrates the major components of the MCS 500 system.