NEC Neax 2400 Imx Installation Manual

NDA-24234 CHAPTER 1
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CHAPTER 1 INTRODUCTION
1. GENERAL
During the period from equipment carry-in of the NEAX2400 IMX – referred to in the remainder of this manual
as “the PBX”– till it is placed in service, the following must be performed:
Installation of the system and its peripheral equipment
System startup
Installation test
Miscellaneous jobs
This manual explains how to proceed with these activities, and related precautions. It is recommended that the
installer thoroughly read...

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INTRODUCTION
2.2 How to Follow NAPs
This manual categorizes the work contents of installation, system startup and installation tests into detailed work
items, and an NEC Action Procedure (NAP) number is assigned to each of such work item.
The following shows how to interpret a NAP number.
Figure 1-1 shows an example of an NAP.
NAP- XXX-XXX
Serial Number (000-999) Note
Work Category Number
200: Installation
215: System Startup, Installation Test, Fault Recovery...

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INTRODUCTION
Figure 1-1   Example of NAP
NAP- 200-004
Sheet 3/3
Installation of the Base Unit
1. INSTALLING THE BASE UNIT USING A SPECIAL STAND
START
Securing the Base UnitSecure the Base Unit onto the special stand as per Figure 
004-4.
Level CheckCheck the level of the Base Unit. If necessary, adjust the 
level by inserting spacers beneath the Base Unit.
END
BASE U
SPECIAL STANDBOLT (M-10)
LOCK WASHER
PLAIN WASHER
NAP Number
Sheet Number of NAP
Title of NAP 

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INTRODUCTION
2.3 How To Follow Trees
This manual explains performance of a predetermined procedure (work contents covered in each NAP) in a
“Tree” format as shown in Figure 1-2. Before engaging in the intended work, be sure to understand the work
contents by tracing the given tree.
Figure 1-2   Example of a Tree
START
On the MDF, make temporary cross connections between the Trunk for Direct-In Termination (DIT) 
and an LC.
C.O. Line Incoming Call Station “B” dials...

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INTRODUCTION
Figure 1-3   Static Caution Indication
This manual provides “Static Caution” indicators (see Figure 1-3) on pages where work involving static-sensi-
tive components is described.
The 3M
 Model 8012 Portable Field Service Kit, shown in Figure 1-4, is recommended as an effective coun-
termeasure against static electricity.
Figure 1-4   3M Model 8012 Portable Field Service Kit
Note:
3M is a registered trademark of Minnesota Mining and Manufacturing,...

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INTRODUCTION
2.4 Figure and Table Numbers
Each Figure and Table within this manual are numbered as shown below.
1. Figure and table in NAP
Figure XXX-X
Serial number of Figures in each NAP
Serial number (000-999) of the NAP in which the Figure exists.
2. Other figure and table
Ta b l e  X - X
Serial number of Table in each Chapter
Number of the Chapter in which the Table exists.
Understanding this numbering rule will help you when looking for the desired Figure or...

NDA-24234 CHAPTER 2
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CHAPTER 2 INSTALLATION DESIGN
1. GENERAL
This chapter provides information pertaining to installation design and preparation of the required installation
materials. The following topics are discussed:
Environmental Requirements
Floor Space
Floor Load Requirements
Equipment Room Requirements
Power Supply Requirements
MDF Requirements
Installation Tools
System Accommodation
Installation Cables
2. ENVIRONMENTAL REQUIREMENTS
The PBX is sensitive to the same...

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INSTALLATION DESIGN
Note:
A short period means a period not exceeding three consecutive days (72 hours) or 15 days (360 hours) in
a year.
2.2 Heat Generation From Switching Equipment
Figure 2-1 shows heat generation from the switching equipment with respect to current consumption.
Figure 2-1   Heat Generation from Switching Equipment for the PBXTable 2-1  Temperature and Humidity
TEMPERATURERELATIVE 
HUMIDITYREMARKS
During 
OperationsNormal Operations 5
°C - 30
°C...

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INSTALLATION DESIGN
3. FLOOR SPACE
1. The PBX requires floor space for the following system equipment:
Switching Equipment (Module Group)
Maintenance Administration Terminal (MAT)
MDF
Rectifier
Batteries
Attendant Console
2. The required floor space for the various equipment rooms is as follows.
Switching Equipment Room: For installing the Module Group, MAT, MDF and Rectifier
Battery Room: For installing Batteries
Operator Room: For installing an Attendant...

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INSTALLATION DESIGN
5.2 Wall
Switching Equipment Room
A Concrete wall is necessary so that cable racks can be installed (unless a free-access floor is used).
It is recommended that the walls be painted so that the wall materials do not generate dust, etc.
The maximum difference in level at the wall surface should be less than +5 mm (0.2 inch).
5.3 Ceiling
Switching Equipment Room
The required ceiling height is more than 2.3 meters (7.5 feet).
5.4 Lighting...