The physical boards of the GOIUA, GOIUB, GOIUP and GOIUT are the same. After being loaded with different software, the physical boards perform different functions. There are four LEDs on the panel of each of these boards: RUN, ALM, ACT, and LOS.
LED |
Color |
Status |
Meaning |
|---|---|---|---|
RUN |
Green |
On for 1s and off for 1s |
The board is working. |
On for 0.125s and off for 0.125s |
The board is loading data. |
||
On |
There is power input but the board is faulty. |
||
Off |
There is no power input or the board is faulty. |
||
ALM |
Red |
Off |
There is no alarm. |
On or blinking |
There is an alarm. |
||
ACT |
Green |
On |
The board works in active mode. |
Off |
The board works in standby mode. |
||
LOS |
Green |
On |
The STM-1 port does not receive signals properly. |
Off |
The STM-1 port receives signals properly. |