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AMCC 9550SX-8LP User Manual

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Connecting Drive Activity LED Indicators
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17
Connecting Drive Activity LED 
Indicators
Figure 15, 10, and 11 show the location of LED indicators on the 
different 9550SX controllers. 
Figure 15.   8-Port 3ware 9550SX-8LP Serial ATA RAID Controller
Figure 16.   4-Port 3ware 9550SX-4LP Serial ATA RAID Controller
LED indicators for individual 
drives on J7 and J8 
Overall LED drive status 
indicator: the last two pins of 
J7 and J8. The anode is the 
lower of the two pins and the 
cathode is the upper.
LED connector details 
J7 is for drives 0, 1, 2, 3 (left to right)
J8 is for drives 4, 5, 6, 7 (left to right)
LED indicators for individual 
drives on J7: 0, 1, 2, 3 
 
(left to right)
Overall LED drive status indicator: 
the last two pins of J7. The anode 
is the lower of the two pins and 
the cathode is the upper.