NEC SL2100 Hardware Manual page 206

ISSUE 4.0
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
indications.
RUN (D1) LED: Green
CPU board
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.
Priority
No.
1 When system has started Up (only U-boot is execute)
2 Shutting down accept status (going to be powered off)
3 Boot error
4 DSP/FPGA Download Error
5 Security Tip Error
6 Reading Error of System Program Update
7 Completed the System Program Update
8 During System Program Update
9 DSP/FPGA downloading
10 Boot is starting
11 IP address lease request
12 DHCP Reset request
13 File accessing (SD Memory card/Flash ROM data is up-
dating)
14 Error alarm (Major) occurred
LED INDICATIONS
provides a list of each LED and associated operation and status
ST 100 1G ACT
ETHERNET VOIPDB RUN ALM
EXP1 EXP2
< Front view >
Table 4-1 CPU LED Indications
Status
ALM (D2) LED: Red
LOAD
LED Indication
RUN (D1): Green
Off Off
500ms On / 500ms Off Off
On 1s On / 1s Off
Off 100ms On / 100ms Off
100ms On / 100ms Off 100ms On / 100ms Off
1s On / 1s Off 100ms On / 100ms Off
1s On / 1s Off 1s On / 1s Off
(Main Software Ver. (Main Software Ver.
1.05.05 or higher) 1.05.05 or higher)
100ms On / 100ms Off / 100ms On / 100ms Off
100ms On / 100ms Off /
100ms On / 500ms Off
Off 1s On / 1s Off
On Off
300ms On / 200ms Off / Off
300ms On / 200ms Off /
300ms On / 700ms Off
300ms On / 200ms Off / On
300ms On / 200ms Off /
300ms On / 700ms Off
100ms On / 100ms Off / Off
100ms On / 100ms Off /
100ms On / 500ms Off
100ms On / 100ms Off 1s On / 1s Off
SL2100
ALM (D2): Red
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