![background image](http://html1.mh-extra.com/html/nec/univerge-neax-2000-ips/univerge-neax-2000-ips_maintenance-manual_3965255157.webp)
CHAPTER 2 TROUBLESHOOTING
– 147 –
NWA-008847-001 Rev.3.0
a6ch2001.fm
Remedial Action on Each Fault Kind
Continued on next page
FAULT
KIND
NUMBER
FAULT CONTENT
FAULT INFORMATION
REMEDIAL ACTION
20
DTI line failure
Fault Detail Kind 01: Frame loss
Fault Detail Kind 02: Multi frame loss
Fault Detail Kind 03: AIS error
Fault Detail Kind 04: Remote alarm
Replace the DTI card.
Fault Detail Kind 05: Multi remote
alarm
Fault Detail Kind 06: S-bit error
Check the DTI cable con-
nection.
Fault Detail Kind 08: CRC error
Fault Detail Kind 09: Slip detected
Fault Detail Kind 0A:Main signal all 1
(for BRT)
Fault Detail Kind 0B:INFO 0
(for BRT)
Fault Detail Kind 0C:INFO 2
(for BRT)
21
DCH/BRT/PRT
D-channel link con-
nection failure
3: XX XX XX XX
D-channel circuit No.
• In case of DCH/BRT/PRT
00-07: Channel No. 0-7
Check the status of the
local office line or public
network line.
22
CCH/IPT link con-
nection failure
3: XX XX XX XX
CCH/IPT No.
00-07: CCH/IPT No. 0-7
Check the status of the
local office line or
remote office line.
24
[Australia
Only]
Number of faulty
trunks was more than
predetermined num-
ber
Search for a line fault
trunk by CMB0 Y=1
or CMF5 Y=0.
Check to see if the
trunk line is faulty.
1
2
FAULT DIAGNOSIS AND TROUBLESHOOTING
Summary of Contents for UNIVERGE NEAX 2000 IPS
Page 1: ...NWA 008847 001 ISSUE 3 0 Maintenance Manual...
Page 10: ...iv NWA 008847 001 Rev 3 0 a6toc001 fm THIS PAGE LEFT BLANK INTENTIONALLY...
Page 124: ...114 NWA 008847 001 Rev 3 0 a6ch1001 fm THIS PAGE LEFT BLANK INTENTIONALLY JULY 01 2006...
Page 244: ...234 NWA 008847 001 Rev 3 0 a6ch2001 fm THIS PAGE LEFT BLANK INTENTIONALLY JULY 01 2006...
Page 262: ...252 NWA 008847 001 Rev 3 0 a6ch3001 fm THIS PAGE LEFT BLANK INTENTIONALLY...