8-port Serial PCI ACC Multiplexer Installation & Service Guide (30291-90508)

24 Chapter2
Hardware Installation
Installing the 8-Port PCI ACC Multiplexer
The LED display is listed in Table 2-1.
Table 2-1 MUX Card LED Display Interpretation
LED Display Meaning
LED flashes red for about seven
seconds, then flashes green at
two-second intervals.
This is normal. The MUX card has
successfully passed self-test, but the
firmware has not been downloaded.
LED turns green. The firmware has been successfully
downloaded.
LED turns red, flashes red at
two-second intervals, flashes amber,
or remains off.
There is a problem with the MUX
card.
The LED turns orange. At least one of the ports is down but
the system can still be used. Run
diagnostic software to determine the
problem.