NEC NDA-24300 manual Line Fault, Faulty Situation Reference Section

			FAULT REPAIR PROCEDURES
	Table 5-1 Fault Repair Procedure Quick Reference (Continued)
FAULTY ITEM		FAULTY SITUATION	REFERENCE SECTION
ISDN Line Fault		• A specific DCH/PRT card is faulty.	Section 13.3, Specific DCH/PRT
		• When the signal transmission line is a digital line,	Card Is Faulty and
			Section 13.4, Fault of DCH, DTI,
		transmission/receiving of control signals cannot be
			and Related Flat Cable
		performed.
Hard Time Clock Fault		EMA card is faulty.	Section 14, Hard Time Clock Fault

1.LINE FAULT

This section explains the fault repair procedure in a case where only one specific station line is in any of the faulty conditions listed in Table 5-2.

Table 5-2	Line Fault Situation
FAULTY SITUATION		REFERENCE SECTION
When Dial Tone cannot be heard		Section 1.3, Line Fault - When Dial Tone (DT) Cannot Be Heard
When dialing results in a wrong connection		Section 1.4, Line Fault - When Dialing Results in Wrong
		Connection
When the bell does not ring		Section 1.5, Line Fault - When Bell Does Not Ring
When call cannot be answered and speech cannot be		Section 1.6, When Call Cannot Be Answered and Speech
made		Cannot Be Made
Dterm Fault		Section 1.7, Dterm Fault

NDA-24300CHAPTER 5

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