ND-45383 (E) CHAPTER 1
Page 1
Revision CD 1.0
CHAPTER 1 INTRODUCTION
1. GENERAL
This manual describes the outline of the functions, installation procedure and maintenance, etc. of the DRU
(Digital Remote Unit). How to use this manual is described in Section 2: “HOW TO FOLLOW THE MANU-
AL” in this chapter. Be sure to read it before continuing.
1.1 Configuration of the DRU System Manual
The configuration of this manual is shown in Table 1-1.
Table 1-1 Configuration of the DRU System Manual
CHAPTER TITLE CONTENTS
2 GENERAL INFORMATION
FOR DRU
This chapter explains the outline of the functions of the DRU, the hard-
ware required for using the DRU and testing of the DRU circuit func-
tions.
3 INSTALLATION
PROCEDURE
This chapter explains the procedure for installation of the DRU.
4 INSTALLATION TEST PRO-
CEDURE
This chapter explains the procedure for installation tests of the DRU.
5 MAINTENANCE
PROCEDURE
This chapter explains the procedure for maintenance of the DRU.
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