NEC ND-71762(E) system manual Maintenance Procedure

MAINTENANCE PROCEDURE

“13-E”: CCH Lock Up Failure (Temporary)

(1)Meaning

The system message “13-E” indicates that a PM (Port Microprocessor) of CCH/CCT card did not send CPU an answer and this has occurred less than 16 times within an hour. When the number of fault occurrence time is less than 8, the Phase 1 restart is executed. If the number of the fault occurrence time is 8 to 16, the Phase 3 restart is executed.

Note: The CPU transmits the Routine (cyclic) diagnostic command to all the PM’s at a predetermined cycle. Each PM upon receiving the Routine (cyclic) diagnostic command from the CPU, returns an answer to the CPU within a predetermined timing. The CPU checks the normality of the PM upon receiving an answer.

(2)Related System Message

When the PM Lock Up Failure occurs more than 15 times, the specific PM of CCH/CCT card is placed into make-busy state and the system message “13-D” is output.

(3)Example of Printout

SYSTEM MESSAGE 13-E [SUP]		CCH LOCK UP FAILURE (TEMPORARY)
NEC TOKYO		MAY 14 10:30
LP00-0-ACT
1: XX00 0000 0000 0000	2: 0000 0000 0000 0000		3: 0000 0000 0000 0000
(a)	5: 0000 0000 0000 0000		6: 0000 0000 0000 0000
4: 0000 0000 0000 0000
7: 0000 0000 0000 0000	8: 0000 0000 0000 0000		9: 0000 0000 0000 0000

(4)Message Detail Data

(a)Accommodated location of the CCH detected the fault. (Refer to paragraph 2.2.1)

MG

U

G

MG: Module Group

U:Unit

G:Group

CHAPTER 8 ND-71762 (E)

Page 98

Issue 2