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CHAPTER 8 ND-71762 (E)
Page 92
Issue 2
MAINTENANCE PROCEDURE
“13-B”: CCH C-Level Infinite Loop Failure. (Permanent)
(1) Meaning
The system message “13-B” indicates that C-level infinite loop (
Note) of the PM (Port Microprocessor) within
the CCH/CCT circuit card has occurred more than 15 times within an hour. When this fault has occurred, the
specific PM is placed into make-busy state and restarted. (The fault counter is “0” at the beginning of every
one hour.)
Note: This is a state in which the C-Level Monitor Program (the program which detects off-hook/on-hook related
to lines/trunks) repeats a specific routine. The number of times to be repeated is counted by the error-
counter corresponding to the CPU.
(2) Related System Message
When the C-level infinite loop failure occurs less than 16 times, the Phase 1 restart or Phase 3 restart is exe-
cuted at the specific PM of CCH/CCT card and the system message “13-C” is output.
(3) Example of Printout
(4) Message Detail Data
(a) Accommodated location of the CCH detected the failure.
(Refer to paragraph 2.2.1)
SYSTEM MESSAGE 13-B [SUP] CCH C-LEVEL INFINITE LOOP FAILURE (PERMANENT)
NEC TOKYO MAY 14 10:30
LP00-0-ACT
1:
XX
00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
(a)
MG U G
MG:
U:
G:
Module Group
Unit
Group