NEC Neax 2400 Imx Installation Manual

							NDA-24234 CHAPTER 3
Page 81
Revision 3.0
INSTALLATION PROCEDURE
4. BRANCHING OF POWER CABLES
NAP-200-008
Sheet 10/13
Connection of Power and Ground 
Cables from the Power Equipment
START
Stripping Main and Branch Cable Referring to Figure 008-8, strip insulation coating 
with an electrician’s knife. Avoid damage to the 
conductor during the stripping process.
Inserting  of  Cables  into  Terminal Insert the stripped main wire and branch wire into the 
terminal as shown in Figure 008-9.
Clamping for Branch Jointing Place T-Type terminal on the die of the clamping 
tool, T-20 - T-44 terminals should be placed on the 
center of the die.
T-60 - T-365 terminals should be placed on the die in 
such a way that the terminal will be pressed on the 
part marked with the roulette.
Proceed with the operation of the clamping tool 
referring to Figure 008-10.
Clean the terminal with a dry cloth.
Taping and Covering Referring to Figures 008-11 and 008-12, put an 
installation cover over the clamped portion, after 
taping with installation tape.
END
3 ROULLETTES 
T-154-T-365 NO ROULLETTE 
T-20-T-442 ROULLETTES 
T-60-T-122 
						

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Page 82
Revision 3.0
INSTALLATION PROCEDURE
Figure 008-8  Stripped Length of Main and Branch Cable
NAP-200-008
Sheet 11/13
Connection of Power and Ground 
Cables from the Power Equipment
Table 008-1  Stripped Length
APPLICABLE TERMINALSTRIPPED MAIN-WIRE LENGTH I
1
[inch (mm)]STRIPPED MAIN-WIRE LENGTH I
2
[inch (mm)]
T-20 Approx. 1.2 (28) Approx. 1.0 (24)
T-26 1.3 (32) 1.2 (28)
T-44 1.5 (37) 1.3 (33)
T-60 1.6 (40) 1.5 (36)
T-76 1.7 (42) 1.6 (39)
T-98 1.8 (44) 1.7 (41)
T-122 1.7–1.9 (43–46) 1.6–1.7 (40–43)
T-154 2.0 (49) 1.9 (46)
T-190 2.3 (57) 2.2 (54)
T-240 2.5 (63) 2.4 (60)
T-288 2.8 (69) 2.6 (66)
T-365 3.0 (75) 2.9 (72)
T- 9 8
Sum of the cross sections of the main and branching, or the main and extension cables.
Type of clamp terminal (T type)
I 1
MAIN CABLE
CONDUCTOR
BRANCH CABLE
I 2
T TYPE 
CLAMP- 
TERMINAL 
						

							NDA-24234 CHAPTER 3
Page 83
Revision 3.0
INSTALLATION PROCEDURE
Figure 008-9  Inserting of Cables into Terminal
Figure 008-10  Clamping for Branch Jointing
NAP-200-008
Sheet 12/13
Connection of Power and Ground 
Cables from the Power Equipment
1/8 inch (1 - 2 mm)
BRANCH 
CABLEMAIN CABLE
BEND PRIOR TO INSERTION
T TYPE 
TERMINAL
Note:Prevent the wires from slipping out of the clamp ter-
minal by holding them firmly.
Check the indication of the pressure regulator.
Operate the pressure release lever to release the
wires from the die.
CLAMPED PORTION
DIET TYPE 
TERMINAL
CONDUCTOR 
(MAIN AND 
BRANCH CABLE) 
						

							CHAPTER 3 NDA-24234
Page 84
Revision 3.0
INSTALLATION PROCEDURE
Figure 008-11  Taping
Figure 008-12  Covering
NAP-200-008
Sheet 13/13
Connection of Power and Ground 
Cables from the Power Equipment
Note:Taping should be done in two rounds with the tape
overlapping half the tape width.
INSULATION TAPE
4-1.2 in (10 - 30 mm) More than.4 in (10 mm)
INSULATION COVER 
						

							NDA-24234 CHAPTER 3
Page 85
Revision 3.0
INSTALLATION PROCEDURE
This NAP explains the following work items:
Extraction of Mounted Circuit Cards
Mounting of Circuit Cards
Setting of Switch Positions on Circuit Cards
Installation of CPR
1. PRECAUTIONS
1.1. Protection Against Static Electricity
When setting switches on circuit cards, use a Portable Field Service Grounding Kit in order to prevent damage
to static-sensitive components.
Example:    3M Model 8012, consists of:
2 
× 2 VELOSTAT 
® Wo r k  M a t
15 ft. (4.5 m) Ground Cord
CHARGE-GUARD
 ® Wrist Strap with alligator clip
Before handling any circuit cards, first spread out the work mat, then connect the ground cord to the frame or
other ground source.
If a CHARGE-GUARD wrist strap is to be used, connect the wrist strap to the frame or other ground using the
provided cable.
1.2. Handling Circuit Cards
Whenever possible, do not handle circuit cards with bare hands.
The only portion of the card that can be touched is its edge. Do not touch the surface or the mounted components.
Doing so may damage the card.
Handle circuit cards with care. Never bang or drop them.
1.3. Mounting or Removing Circuit Cards when the System Is in Operation
Never mount or remove a circuit card without first setting its MBR and/or MB switch to the UP position.
NAP-200-009
Sheet 1/11
Setting of Switch Positions and 
Mounting of Circuit Cards
AT T E N T I O NContents
Static Sensitive
Handling
Precautions Required 
						

							CHAPTER 3 NDA-24234
Page 86
Revision 3.0
INSTALLATION PROCEDURE
2. EXTRACTION OF MOUNTED CIRCUIT CARDS
NAP-200-009
Sheet 2/11
Setting of Switch Positions and 
Mounting of Circuit Cards
START
Remove the Card Stopper Referring to Figure 009-1, remove the card stopper 
from the module.
Extract Circuit Cards Referring to Figure 009-2, pull the card puller tabs 
in the direction indicated by the arrow. The card 
will release from the connector and can then be 
removed.
Pull the card out about 50 mm (2 inches) from the 
edge of the module so that it does not contact the 
backplane connector.
END
AT T E N T I O NContents
Static Sensitive
Handling
Precautions Required 
						

							NDA-24234 CHAPTER 3
Page 87
Revision 3.0
INSTALLATION PROCEDURE
Figure 009-1  Removal of Card Stopper
NAP-200-009
Sheet 3/11
Setting of Switch Positions and 
Mounting of Circuit Cards
AT T E N T I O NContents
Static Sensitive
Handling
Precautions Required
CARD STOPPER
PAN HEAD SCREW (M3, 8mm (.3 inches) length)
SPRING WASHER (M3)
PLAIN WASHER (M3)
Remove the card stopper from the 
module using a phillips-head screwdriver.(PL-C.P.l. MS3815BF) 
						

							CHAPTER 3 NDA-24234
Page 88
Revision 3.0
INSTALLATION PROCEDURE
3. MOUNTING OF CIRCUIT CARDS
NAP-200-009
Sheet 4/11
Setting of Switch Positions and 
Mounting of Circuit Cards
START
Unpacking the Circuit Cards Unpack each circuit card and remove it from its 
polyethylene bag.
Clean the connector portion of the 
Circuit CardsWipe the connector portion clean using a soft cloth 
moistened with pure trichloroethylene or methanol 
(medical alcohol). Make sure that no lint or dust 
remains on the connector after cleaning.
Circuit cards which are already mounted should be 
extracted and cleaned as per the above instructions.
Confirm the mounting positions of the 
Circuit CardsConfirm the mounting position of each circuit card 
by referring to the Module Face Layout.
  Confirm that the color code of the card puller tab 
coincides with that of the card mounting slot.
Confirm the Slot No. on the Module. Slot numbers 
are indicated at the bottom of each module, and 
range from 00 to 23.
Insert the cards into the Module Partially insert the circuit card into the module, 
making sure that it is correctly aligned at the top and 
bottom. The card should extend about two inches 
from the module, and must not contact the backplane 
connector (see Figure 009-3).
END
AT T E N T I O NContents
Static Sensitive
Handling
Precautions Required 
						

							NDA-24234 CHAPTER 3
Page 89
Revision 3.0
INSTALLATION PROCEDURE
4. SETTING OF SWITCH POSITIONS ON CIRCUIT CARDS
NAP-200-009
Sheet 5/11
Setting of Switch Positions and 
Mounting of Circuit Cards
START
Extracting the Circuit Cards from the 
ModuleExtract one circuit card requiring switch setting from 
the module.
Place the extracted card onto the anti-static sheet.
Perform switch setting Set the required switches according to the Switch 
Setting Sheets in the Circuit Card Manual.
Mounting of Circuit Cards After the switches have been set, partially insert the 
card in the module. The card should extend about 50 
mm (2 inches) from the module, and must not contact 
the backplane connector. Refer to Figure 009-3.
END
AT T E N T I O NContents
Static Sensitive
Handling
Precautions Required 
						

							CHAPTER 3 NDA-24234
Page 90
Revision 3.0
INSTALLATION PROCEDURE
NAP-200-009
Sheet 6/11
Setting of Switch Positions and 
Mounting of Circuit Cards
AT T E N T I O NContents
Static Sensitive
Handling
Precautions Required
About 50 mm 
(2 inches)
About 50 mm 
(2 inches)
CIRCUIT 
CARDS
CARD 
PULLER 
TAB
Figure 009-2  Extraction of Circuit CardsFigure 009-3  Circuit Card Mounting (Partial Insertion)