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