Sagem 4450E - Manual (Page 142)

CHAPTER 9
3P@C Installation Manual
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9. Card Maintenance
9.1. Maintenance for System Control Board
9.1.1. Check
1) Checking running status of the system control board through the indicator
The corresponding status indicator in the front panel of the system control board is used to display the running
status of the device, and it plays an important role in the fault analysis and location.
The rough position or cause of the fault can be found through the indicator status, and the indicator status is
helpful for the next processing procedure. The indicator does not have the sufficient information, so it is usually
used with the coordination of the alarm information analysis.
Check the system running status according to indicator description in the Table 9–1. When finding some
exceptional cases, you should take some measures in time.
prompt
The maintenance personnel should pay more attention to the
study of the indicator meaning, and have the rapid response
capability when some faults occur to the system.
Table 9-1 Description of LED status of the system control board SMUB
Indicator Flag Color Status Description
Off The system does not run. RUN Green
Flashing The system runs normally.
Off The system runs normally.
System
status
indicator
ALM Red
ON The system has an alarm. When the
device starts the self-inspection, this
indicator will flash once, but it does not
indicate an alarm.
Constantly
on When a stable link is built in the port, the
corresponding indicator is constantly on. LINK Green
Off No link is in the port.
Flashing Data is being received/transmitted in the
port
Status
indicator
of the
Ethernet
interface
ACT Green
Off Data is not received/transmitted in the
port
prompt
Note: The flashing frequency of the system indicator in the
master system control board is faster than that in the standby
system control board. The system indicator of the master
system control board flashes three times per second, and the
system indicator of the standby system control board flashes
once per second.