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CHAPTER 8 ND-71762 (E)
Page 106
Issue 2
MAINTENANCE PROCEDURE
(5) Diagnostic Work
START
END
FAULT SUPERVISION :
A CCS link failure occurred, but it has restored to
normal.
Ask the distant office if it has not been placed
into make-busy state for maintenance reason,
etc.
Check the carrier equipment.
FAULT : DTI, flat cable is faulty.
FAULT : MODEM and MODEM cable are
faulty.
FAULT : CCH/CCT circuit card is faulty.
When 13-J (Restoration from CCS
Link Failure) is displayed after
system message 13-H
When 13-J (Restoration from CCS
Link failure) is not displayed after
system message 13-H
When the distant office is not under make-busy state.
When DTI is in use as the
control link to the distant
office.
When MODEM is in use as
the control link to the distant
office.
When system message 13-I is
displayed.
Paragraphs 3.3 or 3.4
Paragraphs 3.3
Paragraphs 3.4