NEC 151944 Manuale Utente
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
failure between DAIA and
DAIB
➀ Check whether cable between
DAIA and DAIB is correctly
connected. (Refer to
connected. (Refer to
➁ Reset MB switch
(Down
→
Up
→
Down)
③ Check whether cable between
DAIC cards is correctly
connected. (Refer to
connected. (Refer to
RED lamp is on
PCM signal loss or Frame
Alignment signal loss
Alignment signal loss
➀ Check whether cable between
DAIC cards is correctly
connected. (Refer to
connected. (Refer to
RMT lamp is on
Remote alarm
➀ Check whether cable between
DAIC cards (sending side) is
correctly connected. (Refer to
correctly connected. (Refer to
Table 4-1 Remedial Action on Each Lamp Status (Continued)
CARD NAME
LAMP STATUS
FAULT CONTENT
REMEDIAL ACTION