NEC 151944 system manual PN-DAIB Daib

Table 4-1 Remedial Action on Each Lamp Status (Continued)

CARD NAME	LAMP STATUS	FAULT CONTENT		REMEDIAL ACTION
PN-DAIB (DAIB)	RUN lamp is not flashing	Abnormal operation of	➀	Reset MB switch.
		DAIB card		(Down→Up→Down)
			➁	If fault cannot be cleared,
				replace card.
	LINK lamp is not on	Layer 2 link connection	➀	Check whether cable between
		failure between DAIA and		DAIA and DAIB is correctly
		DAIB		connected. (Refer to Chapter 3,
				Section 2.3.)
			➁	Reset MB switch
				(Down→Up→Down)
	RED lamp is on	PCM signal loss or Frame	➀	Check whether cable between
		Alignment signal loss		DAIA and DAIB is correctly
				connected. (Refer to Chapter 3,
				Section 2.3.)
			➁	Reset MB switch of DAIA card
				on main site.
				(Down→Up→Down)
	RMT lamp is on	Remote alarm	➀	Check whether cable between
				DAIA and DAIB (sending side)
				is correctly connected. (Refer
				to Chapter 3, Section 2.3.)

CHAPTER 4 ND-46550 (E)

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