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Checking the Installation
After you have installed a new interface, verify the installation before you replace the front panel by
observing the LEDs on the CSC-MEC card, the ciscoBus controller card, the system processor card,
and on any 10BaseT appliques. When the LEDs indicate that the cards and appliques are installed
correctly, you will configure the new interfaces and check the configuration with the EXEC show
commands.
Checking LEDs
The LEDs on the CSC/3 and CSC/4 processor cards indicate the status of the system software. The
ciscoBus controller LEDs indicate the presence (correct installation) of ciscoBus cards in the
ciscoBus. The LEDs on the CSC-MEC card are on when the corresponding port (immediately to the
right of each LED on the card) is connected to an external interface. If any 10BaseT appliques are
installed, the LEDs on the applique indicate the state of that interface. There are no LEDs on the
15-pin Ethernet applique connectors. You will have to be able to access the rear panel of the chassis
to observe the LEDs on 10BaseT appliques.
Processor Card LEDs
To the right of the configuration register, on the front edge of the processor card, are three LEDs. On
the CSC/3, the left and center LEDs are red (see Figure 11), while on the CSC/4, they are yellow
(see Figure 12). The third LED (far right) on each card is green. The LED on the left is a
software-programmable status light; it is on (momentarily) during initialization, flashes to indicate
an error, and remains off under normal operation. The middle LED is the processor halt light; it is
on when the processor halts for any reason. This LED can flash at power-up, but should not remain
on; a problem is indicated when it does. The green LED on the right is a software-programmable run
light that is on when the system is running properly.
Figure 11
Figure 12
CSC/3 Processor Card LEDs
CSC/4 Processor Card LEDs
Installing the CSC-MEC and CSC-C2MEC Multiport Ethernet Controller Cards 21
Configuration
register
LEDs
Red
Green
Configuration
register
LEDs
Yellow
Green
Console
cable port
Console
cable port
Installation
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