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5 Functional Description
Page 51
5.2.11.2.
LEDs - Description
Seven LEDs are included on the EAC-board. They are controlled via the I
2
C bus.
figure 5-18 Function of LEDs on the EAC-board
Colours and illumination functions
No Colour Explanation
1 Yellow
2 Green
Ethernet connector LEDs, see chapter
3 Green
DL PWR - illuminates when the DL Power is "Good" and the DL is
NOT in battery backup.
4 Green
UL PWR - illuminates when the software on the UL sets a bit in the
FPGA indicating power is "good".
5 Blue
USER1 - illuminates when software activates. The LED is controlled
by software through the I
2
C bus.
6 Red
ALARM - illuminates when a software defined alarm condition exists.
This LED is controlled via the I
2
C bus.
7 Yellow
BBU ACTIVE - when illuminated the DL-DCM is in battery backup
mode.
2
3
4
5
6
7
1
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