CHAPTER 3 PREPARATION FOR USE

T.O. 31W2-2GSC24-2

TM 11-5805-688-14-1

NAVELEX 0967-LP-545-3010

CHAPTER 3

PREPARATION FOR USE

SECTION I

GENERAL

3-1. INTRODUCTION.

features, the functions are independent of each other.

Because of their functional independence, a multiplexer

3-2.

This section and sections II and III contain

and demultiplexer within a given equipment may each be

introductory information and detailed instructions for

configured to simultaneously process channel data of

preparing the multiplexer set for operation. Instructions

different and unrelated forms.

for preparing the multiplexer set for reshipment are

prescribed in section IV.

3-7. Figure 3-1 depicts the multiplexer set in typical

duplex system applications. As shown in configuration A

3-3. This section contains general information about the

of figure 3-1, input channels of the forms a, b, and c are

multiplexer set and its application within various data

applied to the multiplexer (MUX) function of multiplexer

communications systems. The purpose of this section is

set No. 1. These inputs are combined (multiplexed) into

to assist the user in understanding equipment

a single output data stream and are routed via a

configuration planning as prescribed in sections II and III.

transmission link to a far-end demultiplexer (DEMUX)

that is a part of multiplexer set No. 2. Channels a, b,

3-4. Detailed instructions for configuration of an actual

and c are outputs of the far-end demultiplexer, and are

multiplexer set are contained in section III.

The

subsequently routed to the assigned users. In return, the

procedures are predicated upon the availability of a set

far-end multiplexer accepts channel inputs of the forms

of completed configuration worksheets.

Section II

a, b, and c, and routes them via the transmission link to

describes, by example, procedures for preparing the

the demultiplexer portion of multiplexer set No. 1. Thus,

worksheets and also discusses supplemental factors that

in this example, channel data of the same forms (a, b,

should be considered in planning a multiplexer set

and c) are transmitted in both directions.

system application. Normally, the user is provided with

worksheets that describe how a multiplexer set is to be

3-8.

Configuration B of figure 3-1 depicts an

configured for a specific application. In such cases, the

unsymmetrical duplex system application in which

user may regard the instructions in section II as

channel data transmitted in one direction are in a

supplementary information.

different form than the data transmitted in the other

direction. This configuration is made possible by the

3-5. TYPICAL SYSTEM APPLICATIONS.

independence of multiplexer and demultiplexer functions

within a given multiplexer set.

3-6. The multiplexer set is a flexible equipment capable

simultaneously

performing

multiplexing

and

demultiplexing functions. Except for operating power

and certain display and alarm

3-1