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ND-46550 (E) CHAPTER 4
Page 69
Revision 2.0
PN-DAIC (DAIC) RUN lamp is not flashing Abnormal operation of
DAIC card
➀ Reset MB switch.
(Down→Up→Down)
➁ If the fault can not be cleared,
replace card.
LINK lamp is not on Layer 2 link connection
failure between DAIA and
DAIB
➀ Check whether cable between
DAIA and DAIB is correctly
connected. (Refer to
CHAPTER 3, Section 2.3.)
➁ Reset MB switch
(Down→Up→Down)
③ Check whether cable between
DAIC cards is correctly
connected. (Refer to
CHAPTER 3, Section 2.3.)
RED lamp is on PCM signal loss or Frame
Alignment signal loss
➀ Check whether cable between
DAIC cards is correctly
connected. (Refer to
CHAPTER 3, Section 2.3.)
RMT lamp is on Remote alarm ➀ Check whether cable between
DAIC cards (sending side) is
correctly connected. (Refer to
CHAPTER 3, Section 2.3.)
Table 4-1 Remedial Action on Each Lamp Status (Continued)
CARD NAME LAMP STATUS FAULT CONTENT REMEDIAL ACTION