
Installing the BCN and BCN RLC
109352-E Rev. A 3-17
If an LED is not on, replace the power module. (Refer to Chapter 5,
“Hot-Swapping Hardware Components,” for hot-swap procedures.)
6. Verify that air is flowing from the cooling fans and out through the top of
the BCN.
Figure 3-8. BCN RLC Power Source and Switches
After you power on the BCN, each routing engine automatically initiates a
diagnostic test to verify proper board function.
LED Activation Sequence
The LEDs on the front panel of the BCN (Figure 3-9) activate while the BCN
initializes and runs through its diagnostic tests.
Note: If you cannot feel air flow from the BCN vents, if the POWER and
DIAG LEDs remain off, or if the DIAG LED remains on, turn the power
switch(es) at the rear of the BCN to the OFF position. Wait 1 minute and then
turn the power switch(es) to the ON position. If the problem persists, contact
the Bay Networks Technical Response Center.
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