NEC SL2100 - 3.4.7 LED Indication

ISSUE 4.0 SL2100
INSTALLING THE EXPANSION INTERFACE BOARDS 89
3.4.7 LED Indication
A Status LED is available only for the base board (082U, 008U, 000U) and the daughter board
(3COIDB, 1PRIDB) does not have the status LED, therefore a Status LED on base board is used in
common about LED indication related to the daughter board.
082U-B1
1-4 5-8 1-2
ESI SLI RL/Audio
Trunks
(The illustration shows IP7WW-082U-B1.)
Status LED (Green)
Figure 2-71 Location of Status LED
The order of priority (No.1 ~ 8) 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. Refer to Table 2-19 PRI
LED Indications.
Table 2-19 PRI LED Indications
Priority
No.
Operation Status
LED Indication on the
Base Board
Remarks
1
System Initializing
On
2
The assignment of the board is refused.
3s On / 3s Off
• When you exceed the
system capacity.
• When the main soft-
ware version is not
matched.
3
Trouble found during self-diagnostics.
1s On / 1s Off
4
Normal
Operation
A Channel is busy (use another from CH1 ~
CHx).
500ms On / 100ms Off
5
All channels are idle.
100ms On / 100ms Off
6
Board
Busy
A Channel is busy (use another from CH1 ~
CHx).
100ms On / 2s Off
7
All channels are idle.
Off
8
Downloading firmware.
80ms On / 80ms Off /
80ms On / 80ms Off /
80ms On / 400ms Off
T1 Alarm Mode
Refer to following figure for LED pattern information. LED indications for the T1 are listed in
Table 2-20 T1 LED Indications on.