
Installing and Maintaining BN Platforms
5-20 109352-E Rev. A
If you end up with a negative number, the power supplies cannot support the
ILI configuration.
If you remove one power module and the remaining power modules cannot
support your ILI configuration, you can remove cables, link modules, and routing
engine modules until the ILI configuration draws less power than what the power
modules can provide.
Replacing the BLN-2 Power Module
You can remove and replace a power module in a BLN-2 with the power on or off.
Remove a BLN-2 power module as follows:
1. Loosen the captive thumbscrew until the power module disengages.
2. Grasp the handle and gently pull it out of the BLN-2 (Figure 5-10).
Note: BCN Power - 3 power supplies support up to 13 ILIs. The fourth power
supply will provide power supply redundancy (3+1).
BCN RLC Power - 4 power supplies support up to 10 ILIs
(maximum loading = output of 2 power supplies). This system has power
source redundancy (A+B) as well as power supply redundancy (2+2).
Warning: The sides of the power module are hot when removed from a
BLN-2 that has been operating recently. Hold the power module by the
bottom.
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