Table 5-1 Alarm Indications On 24Dti - NEC Neax 2000 IVS2 Manual

LED INDICATION
LED
NORMAL
RUN Flash
(120 IPM)
CRC Off
PCM Off
FRM Off
RMT Off
AIS Off
2
NEAX2000 IVS ISDN System Manual
ND-70919 (E), Issue 1.0

Table 5-1 Alarm Indications on 24DTI

FAULT CAUSE
On or Off Abnormal
operation of DTI
card
On Bit Error Rate
exceeds the
predetermined
value
On No PCM signals
arrive from the
distant office
On Frame Alignment
signals from the
distant office can-
not be received
On Frame Alignment
signals cannot be
sent to the
remote PBX
On Remote PBX is in
the loop-back test
CHAPTER 5 OPERATION TEST
Interoffice Transmission Line Test
FAULT
ACTION
Confirm the programming data:
1
CM05, CM07 YY=01.
Check to see if the SENS
2
switch is set as per the AP
number (04-15, 20-31)
assigned by CM05.
Reset the MB switch
3
(Down→Up→Down)
If the fault cannot be cleared,
4
replace the card.
Check the receive line and
1
external equipment.
Replace the remote DTI card.
2
Check to see if the DTI cable is
1
correctly connected.
Plug and unplug the DTI card.
2
Repeat this two or three times.
Check the receive line and
1
external equipment.
Replace the remote DTI card.
2
Check the transmission line
1
and external equipment.
Replace the DTI card.
2
Check the switch settings of
1
the remote DTI card.
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