ISSUE 4.0 SL2100
LED INDICATIONS 204
Section 3 LED INDICATIONS
The LEDs on the CPU indicate the following:
• RUN (D1) = The CPU is operating (Green)
• ALM (D2) = Alarm (Red)
• Refer to Program 90-10: System Alarm Setup for details on assigning alarm LEDs.
Table 4-1 CPU LED Indications provides a list of each LED and associated operation and status
indications.
ST
100 1G ACT
LOADRUN
ETHERNET VOIPDB
EXP1 EXP2
ALM
RUN (D1) LED: Green
CPU board
< Front view >
ALM (D2) LED: Red
Figure 4-18 Location of the LEDs on the CPU Board
The priority order (No.1 ~ 16) is set up to each status and when more than one different status are
occurred, the highest priority LED indication pattern (status) will be indicated.
Table 4-1 CPU LED Indications
When system has started Up (only U-boot is execute)
Shutting down accept status (going to be powered off)
Reading Error of System Program Update
Completed the System Program Update
During System Program Update
(Main Software Ver.
1.05.05 or higher)
100ms On / 100ms Off /
100ms On / 100ms Off /
100ms On / 500ms Off
(Main Software Ver.
1.05.05 or higher)
100ms On / 100ms Off
300ms On / 200ms Off /
300ms On / 200ms Off /
300ms On / 700ms Off
300ms On / 200ms Off /
300ms On / 200ms Off /
300ms On / 700ms Off
File accessing (SD Memory card/Flash ROM data is up-
dating)
100ms On / 100ms Off /
100ms On / 100ms Off /
100ms On / 500ms Off
Error alarm (Major) occurred