Repair Procedure; Figure 7-10 Fch-Dti Connection - NEC NEAX 2400 IPX Manual

TROUBLESHOOTING
13-H/I/J Signaling Link Failure (Permanent)/(Temporary)/(Recovery)

6.1 Repair Procedure

• 13-H (Permanent)
STEP 1: Make sure that the front cable is securely inserted. See
Firm ly insert the connector on the front edge of the indicated F C H card.
FC H (P A-FC H A )
STEP 2: Initialize the indicated FCH (PA-FCHA) card using the MB key. (MB key: Down
See Figure
displayed anymore, monitor the system for a while. Otherwise, move to STEP 3.
STEP 3: Replace the FCH card, following the procedure in
replacement, move to STEP 4.
STEP 4: Replace the front cable labeled 10AL (10) FLT CA, since the cable is suspected as faulty.
6.2 Repair Procedure
• 13-I (Temporary)
STEP 1: Make sure that the front cable is securely inserted. (See
STEP 2: If this message has been displayed once or twice, monitor the failure for a while. Otherwise, move to
STEP 3.
STEP 3: If 13-J (Recovery) has been displayed after this message, monitor the failure for a while. Otherwise,
move to STEP 4.
CHAPTER 7
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Revision 1.0
D TI
D TI
FCH
indicated F C H card

Figure 7-10 FCH-DTI Connection

7-3. When the LED on the FCH card lights green and the related system messages are not
Figure
D TI (PA -24D TR )
LED
M B
10A L(10)FLT C A
D TI
C N 2
FC H
Figure
Figure
NDA-24299
7-10.
FCH
DTI
Contents
Static Sensitive
Handling
Precautions Required
10A L(10)FLT C A
FR O N T V IE W
Up
7-4. If the failure exists after card
7-10.)
ATTENTIO N
Down)