NEC Neax 2400 Imx Installation Manual

NDA-24234 CHAPTER 6
Page 361
Revision 3.0
FAULT RECOVERY DURING TESTS
NAP-200-052
Sheet 1/2
Station to Station Connection Fault
START
Dial Tone (DT) is still heard after a digit is dialed (cannot break dial tone)
A specific RST card is involved 
A specific LC card is involved
A specific UNIT card is involved
Entire System is involved
Reorder Tone (ROT) is heard after a station number is dialed.
Using MAT command “ANPD/ANPDL/ANPDN,” check “Necessary Number of Digits” data.
Using command...

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FAULT RECOVERY DURING TESTS
NAP-200-052
Sheet 2/2
Station to Station Connection Fault
After the call has been answered, noise is heard or the speech path is one-way.
If the fault involves one or more lines within the same LC circuit card, replace the card with a 
spare.
If the fault involves a specific PIM, replace either the MUX or TSW circuit card with a spare.
If noise is heard throughout the entire system, replace the TSW circuit card with a spare....

NDA-24234 CHAPTER 7
Page 363
Revision 3.0
CHAPTER 7 WORK AFTER INSTALLATION TESTS
This Chapter explains various kinds of work and site cleaning, etc. which the installer must perform after completion
of installation tests so that the system can be cut over normally.
Upon completion of all the required tests, the technician must confirm or perform the following.
1. Office Data Management
2. Preparation of Test Result Reports
3. Mounting of the Front and Rear Covers
4. Attachment of Inter-frame Brackets
5....

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WORK AFTER INSTALLATION TESTS
Note:
Cautions pertaining to Floppy Disks.
(1) Do not place a heavy object on an FD or the FD will be damaged.
(2) When taking an FD out of its protective envelope, hold the top edge of the disk and gently pull it out.
(3) Do not expose the FD to direct sunlight or to a high temperature (above 65°C (150°F)).
(4) Do not pinch the FD with a clip.
(5) Do not touch the recorded surface of the floppy disk with bare hands; fingerprints...

NDA-24234 CHAPTER 7
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WORK AFTER INSTALLATION TESTS
3. MOUNTING OF THE FRONT AND REAR COVERS
When mounting the front cover and the rear cover of the PBX, follow the procedure below.
START
Inspection Set all MB switches back to their positions prior to the 
installation tests. Confirm that all circuit cards are 
mounted in the proper slots according to the Bayface 
Layout.
Mounting of Side Covers Referring to Figure 7-1 through Figure 7-3, mount the 
side covers onto the Modules and...

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WORK AFTER INSTALLATION TESTS
Figure 7-1   Mounting of the Covers 

NDA-24234 CHAPTER 7
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WORK AFTER INSTALLATION TESTS
Figure 7-2   Side Cover Mounting Method (BASEU+LPR+PIM0)
SCREWFRONT
REAR
SIDE COVER 

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WORK AFTER INSTALLATION TESTS
Figure 7-3   Side Cover Mounting Method (PIM)
REAR
SIDE COVER 

NDA-24234 CHAPTER 7
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WORK AFTER INSTALLATION TESTS
Figure 7-4   Rear Cover Mounting Method (BASEU+LPR+PIM0)
SCREW
SCREW
SCREW SCREW
SCREW
SCREW REAR SIDE
REAR COVER
SIDE VIEW 

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Figure 7-5   Rear Cover Mounting Method (PIM)
MODULE
REAR SIDE
REAR COVER SCREWSCREW
MODULE
REAR COVER
SIDE VIEW