Casio P460 manual Calculating the Power Budget, Sample Power Budget Calculation

Chapter 6 Maximizing Avaya P460 Availability

Calculating the Power Budget

You can also calculate how many PSUs you need in order to provide redundancy for a specific configuration.

You need to add the power requirements for the I/O modules installed to the base requirement of two Supervisor modules and one Fan module. If the total is less than the power supplied by the number of PSUs installed, an additional PSU provides redundancy.

Table 6.2 shows a sample calculation:

Table 6.2 Sample Power Budget Calculation

	Component		Requirement (W)
	Fan module		45
	2 x M460ML-SPV Supervisor Modules		136
	2 x M4648ML-T I/O Modules		96
	Total		277
Total power available:		300 W
Total power requirement:		277 W

An additional power supply will operate in redundant mode.

Refer to “Power Requirements” on page 80 for power requirements for P460 components.

40 Avaya P460 Installation and Maintenance Guide