Fujitsu FLM 150 ADM Maintenance And Trouble Clearing page 58

Maintenance and Trouble Clearing
FJTU-320-515-480
Table 3-18: DCCFAIL (Data Communications Connect Failure)—Alarm Event (cont'd)
AID
Direction
Type
OC3 TRMT/RCV
OC12
RCV
150 ADM
OC-3/
OC-12
DROPPED
SIGNAL
OVTG
TRMT
150 ADM
OC-3/
OC-12
ADDED
SIGNAL
Issue 9, May 1999
Probable Cause
The OC-3 SDCC has • Check the fiber link and perform trouble analysis
failed.
• At both the local and upstream sites, check for OC-3
• At both the local and upstream sites, verify that the
• Verify that the SDCC parameters for this site and the
• Verify that the local and upstream optical units have
The OC-12 Section • Check the fiber link and perform trouble analysis
Data
Communications
• At both the local and upstream sites, check for OC-12
Channel (SDCC)
has failed
• At both the local and upstream sites, verify that the
• Verify that the SDCC parameters for this site and the
• Verify that the local and upstream optical units have
The low-speed • Check the fiber link and perform trouble analysis
OVTG Section Data
Communications
• At both local and upstream sites, verify that no
Channel (SDCC)
has failed.
• At both the local and upstream sites, verify that the
FNC and FNC Customer Use Only
Suggested Corrective Action
procedures as necessary.
optical channel unit failure/removal alarms. Refer to
Section 4.12, Replacing the OC-3 Optical Channel
(HC1A and MC6A) Units, and Section 4.16, Replacing
the Low-Speed Channel–OVTG (LC1A-F6xx) Unit.
SDCC is provisioned In Service and initialized. Refer to
Section 5.8, Correcting a Mismounted Unit, for
procedures. (Use INIT-OSSI for SWDL units.)
upstream site are identical.
the correct issue numbers to ensure firmware
compatibility.
procedures as necessary.
optical channel unit failure/removal alarms. Refer to
Section 4.11, Replacing the OC-12 Optical Channel
(HC1A-6Lx1) Units, and Section 4.16, Replacing the
Low-Speed Channel–OVTG (LC1A-F6xx) Unit.
SDCC is provisioned In Service and initialized. Refer to
Section 5.8, Correcting a Mismounted Unit, for
procedures. (Use INIT-OSSI for SWDL units.)
upstream site are identical.
the correct issue numbers to ensure firmware
compatibility.
procedures as necessary.
LC1A-F6 unit has failed or been removed.
Refer to Section 4.12, Replacing the OC-3 Optical
Channel (HC1A and MC6A) Units; Section 4.11,
Replacing the OC-12 Optical Channel (HC1A-6Lx1)
Units; and Section 4.16, Replacing the Low-Speed
Channel–OVTG (LC1A-F6xx) Unit.
SDCC is provisioned as In Service and initialized. Refer
to Section 5.8, Correcting a Mismounted Unit, for
procedures.
3.20: DCCFAIL
Vol. ll, Page 480.3-16