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ACE1553-3U-4 Hardware Manual
6
Front Panel LEDs
2.4
Two sub miniature LEDs for each channel, located at the front panel, indicate the module
status. The LEDs are located in two quadruple LED-Arrays on the physical interface
daughterboard.
Figure 2.3: Status LED view
LED Name
Colour
Description
FAIL (CH1)
Red
LED illuminates if an Error during the MILbus Channel1 self-test
occurs.
BUSY (CH1)
Green LED illuminates permanently if the MILbus channel 1 is connected.
LED flashes if any MILbus Activity is detected by the
Encoder/Decoder of the MILbus channel 1.
FAIL (CH2)
Red
LED illuminates if an Error during the MILbus Channel2 self-test
occurs.
BUSY (CH2)
Green LED illuminates permanently if the MILbus channel 2 is connected.
LED flashes if any MILbus Activity is detected by the
Encoder/Decoder of the MILbus channel 2.
FAIL (CH3)
Red
LED illuminates if an Error during the MILbus Channel3 self-test
occurs.
BUSY (CH3)
Green LED illuminates permanently if the MILbus channel 3 is connected.
LED flashes if any MILbus Activity is detected by the
Encoder/Decoder of the MILbus channel 3.
FAIL (CH4)
Red
LED illuminates if an Error during the MILbus Channel4 self-test
occurs.
BUSY (CH4)
Green LED illuminates permanently if the MILbus channel 4 is connected.
LED flashes if any MILbus Activity is detected by the
Encoder/Decoder of the MILbus channel 4.
PCI Activity
Blue
LED flashes if there is local (on board PCIe/PCI bus) activity
Table 2.2: Front Panel LED description
Summary of Contents for ACE1553-3U-4
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