Gigamon GigaVUE-HC3, Hardware Installation Manual

Page: 56 / 142

56 GigaVUE-HC3 Hardware Installation Guide
Defining Power Attributes
The following attributes for power computation are defined as follows:
• Total power—the total power available in the system, based on the PSMs
• Base power—the power needed for the control card and base system
• Power allocated—the power allocated to the modules by power management
• Power available—the power remaining and available after power has been
allocated
• Power redundant—the status of yes/no of whether or not the system currently has
redundant power
• Total redundant power—the total redundant power in the system
Calculating Available Power
Every PSM has maximum rated Watts. Table 3-1 on page 56 lists the PSMs with their
input voltage and maximum rated Watts. The maximum Watts is the available power for
each AC or DC power supply module.
For a PSM to be included in available power, the PSM must be plugged in and have a
status of
on . Power management adds the eligible rated Watts to the available power
and subtracts any removed, failed, or no input voltage power supply module from the
available power.
Table 3-2 on page 56 shows the calculation for total available power, where there are
three PSMs and one empty slot.
Table 3-1: Input Voltage and Maximum Watts
Power Supply Module AC/DC Input Voltage Maximum Watts per PSM
DC PSM -48V 40V-72V 1500W
AC PSM 110V 100V-200B 1100W
AC PSM 208V 200V-240V 1500W
Table 3-2: Total Available Power with Three PSMs
PSM Slot Power (Watts) Status
AC PSM 110V 1 1100W on
AC PSM 208V 2 1500W on
3 Empty
AC PSM 208V 4 1500W on
Total Available Power 4100W