Andrew Wireless System NCM843 Manuel D’Utilisation

5 Functional Description 

 

 

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Seven LEDs are included on the EAC-board. They are controlled via the I

2

C bus. 

 

 

 

 

1 Yellow 
2 Green 

Ethernet connector LEDs, see chapter 3.1 Setting up a Local / LAN 
Connection from Laptop / PC 

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. 

 

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