How do I perform load sharing of power supply (PS1 and PS2) in Cisco 7513 Series Routers?
A. You can divide load sharing of power 40%/60% or better on the +5V and +12V. This value can vary from 50% to 100% based on the load between any two power supplies PS1 and PS2. Here is an example of the load sharing between the two power supplies PS1 and PS2: Example 1 PS1 + 5V Current measured at 51.76A (capacity 200 A) PS1 + 12V Current measured at 1.92 A (capacity 35 A) PS1 – 12V Current measured at 0.04 A (capacity at 3 A) PS1 output is 285 W Example 2 PS2 + 5V Current measured at 60.39 A (capacity 200 A) PS2 + 12V Current measured at 2.61 A (capacity 35 A) PS2 – 12 V Current measured at 0.02 A (capacity 3 A) PS2 output is 337 W So, the total power is 285 W + 337 W = 622 W. PS1: 285/622 = 0.45, or a 45/55 load-sharing ratio. PS2: 337/622 = 0.55 or a 55/45 load-sharing ratio.
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