Verilink QPRI 2921 (880-503143-001) Product Manual Uživatelský manuál Strana 80

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Troubleshooting
4-6 Verilink QPRI 2921
Interpreting Front Panel LEDs
The LED indicators on the front panel of the QPRI 2921 module
display errors caused by network line or data terminal equipment
problems. The errors are reflected in the alarm status and the
performance/status menus in the ASCII terminal interface. Node
Manager also has an alarm display.
There are five LEDs on the front panel:
Two network port LEDs
Two data port LEDs
One system LED
Figure 4-2 QPRI Front Panel Showing Alarm Indicator LEDs
Network LEDs
Network LEDs display minor, major, and catastrophic alarm
conditions detected on the network lines.
Table 4-2 Network LED Indicators
Port LEDs
System LED
QPRI
2921
LOCAL
SYS
MANAGEMENT
PRI
EXT
✳✳
PORT
PORT
1
2
3
4
State Color Alarm Class Action/Possible Error Condition
Solid Green All okay None
Solid Amber Diagnostic
mode with no
errors
None. Port is active and in loopback.
Flashing Amber and
Red
Yellow Alarm Check the diagnostic performance status or alarm status
displays. The Yellow Alarm indicates that the unit is
receiving an RAI Signal, which indicates that the far end is
not receiving a signal from the near end.
Solid Red Major Check the performance status or alarm status display. Loss
of Signal (LOS) from far end transmits all-ones.
Off None None Port is not enabled.
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