TM 11-7025-22140
CHAPTER 1
INTRODUCTION
Section 1. GENERAL INFORMATION
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Subject
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Parts, Special Tools, TMDE, and Support Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Forms, Records, and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Destruction of Army Materiel to Prevent Enemy Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation for Storage or Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Official Nomenclature, Names, and Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reporting Equipment Improvement Recommendations (EIR's) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1. scope.
a. Type of ManuaL This manual contains organizational maintenance instructions for the Digital Mul-
tiplexer TD-1337(V)/G family.
b. Model Numbers and Equipment Name. Digital Multiplexer TD-1337(V)/G (hereafter referred to as
the TD-1337(V)/G) is the military nomenclature assigned to a family of digital multiplexer. There are four
models in the TD-1337(V)/G family. Each model is assigned its own military nomenclature as listed below.
Digital Multiplexer TD-1337(V)1/G
Digital Multiplexer TD-1337(V)2/G
Digital Multiplexer TD-1337(V)3/G
Digital Multiplexer TD-1337(V)4/G
This manual covers all four models. Differences between models are denoted throughout this manual by
notes, exceptions, or other appropriate means. When the term TD-1337(V)/G is used in this manual, it
means all four models,
c. Purpose of Equipment. The TD-1337(V)/G is a synchronous time division multiplexer-demultiplexer
used in a satellite earth terminal. The TD-1337(V)/G provides a full duplex capability in interfacing the
modem in the terminal radio equipment with ground equipments. Inputs from synchronous data users are
multiplexed (combined) into a single output supergroup (SG) and supplied to the modem in the terminal
radio equipment for transmission. Similarly, received SG(s) are demultiplexed (recombined) into their com-
posite parts and supplied to the respective data users.
1-2. Repair Parts, Special Tools, TMDE, and Support Equipment.
a. Common Tools and Equipment. For authorized common tools and equipment, refer to the' Modified
Table of Organization and Equipment (MTOE) applicable to your unit.
b. Special Tools, TMDE, and Support Equipment. No special tools, TMDE, or support equipment are
required to carry out the maintenance instructions in this manual.
c. Repair Parts. Repair parts are listed and illustrated in the repair parts and special tools list (TM
11-7025-221-20P) covering organizational maintenance for this equipment.
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