AT&T System 75, Wiring Diagram

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CHAPTER 5. AUXILIARY EQUIPMENT INSTALLATION
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Cook Electric Model NT7M00AA* or NT7M25AA* Digital
Announcer—Provides recorded announcements for Recorded
Announcement feature. Model NT7M00AA provides one channel
of voice. Model NT7M25AA provides four channels of voice. Both
models require an ac adapter to provide a 117-volt ac power
source.
Audichron® H9040 Wake-Up Announcement System—provides
automatic wake-up announcements for use with the hospitality
features. This unit requires a power supply (to be provided locally)
that is rated at -48V dc at 1.2 amps.
3270 data modules—provide a family of protocol converters that
allow 3270-type terminals to communicate with a host computer
through the system.
Processor data modules (PDMs)—provide an interface to an AP,
AUDIX, Call Management System (CMS), Distributed
Communications System (DCS), Property Management System
(PMS), customer-provided terminals and computers, and Station
Message Detailed Recording (SMDR).
Asynchronous data units—provide an interface between the
system data line circuit pack and the customer’s asynchronous
data terminals and host computers. They also can be used to
provide an interface to the PMS or SMDR equipment.
Information system network (ISN) interface—provides an interface
to the ISN that interconnects computers and terminals on a
customer’s premises.
Star-based local area network (STARLAN) interface—provides
an interface to the STARLAN network that interconnects personal
computers, data terminals, resource units, and printers.
(Premises lightwave system (PLS) interface—provides an
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interface to the PLS that allows 3270-type terminals to be
connected to a 3274 cluster controller.
* Refer to the Cook Electric Digital Announcer product description and ordering
information for complete codes.
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