System Power 2030 2030
Inline Power 106 20370
------------- ------ ---------
Total 2136 22400
Other valid configuration options for the n+1 mode:
• All installed modules are AC-input power supply modules of the same capacity and with the same
AC-input voltage voltage level; one module is configured as standby.
• A mix of AC-input and DC-input power supply modules are installed where all modules are of the same
capacity and all instaled AC-input power supply modules have an AC-input voltage of 220 VAC.
Example: n+n Redundant Mode (Power Supply Modules of the Same Capacity
+ Full Protected State)
The table below represents the two rows of power supply slots in a Cisco Catalyst 9400 Series chassis. Power
supply slots are indicated as PS1, PS2, and so on. For this example, power supply modules of the same capacity
(3200W) have been installed in slots 1 through 8. Slots 1 through 4 have AC-input power supply modules
and all are configured as active. Slots 5 through 8 have DC-input power supply modules and all are configured
as standby.
PS4 (Active)
C9400-PWR-3200AC
PS3 (Active)
C9400-PWR-3200AC
PS2 (Active)
C9400-PWR-3200AC
PS1 (Active)
C9400-PWR-3200AC
PS8 (Standby)
C9400-PWR-3200DC
PS7 (Standby)
C9400-PWR-3200DC
PS6 (Standby)
C9400-PWR-3200DC
PS5 (Standby)
C9400-PWR-3200DC
The device meets all the required conditions for an n+n redundant mode with a full protected state.
• It is in an n+n redundant mode, because n number of power supply modules are configured as active,
and the same number, as standby.
It also meets all the n+n redundant mode conditions:
• All power supply modules configured as active are of the same type; all modules configured as
standby are of the same type.
• A mix of AC-input and DC-input power supply modules are installed and all installed AC-input
power supply modules in the chassis are of the same capacity and have the same AC-input voltage
level.
In the sample output where Type= ac, Capacity = 3200 W for all modules. The Capacity field for
the AC-input modules also reflect that voltage is at 220 VAC.
• A mix of AC-input and DC-input power supply modules are installed, and all installed DC-input
power supply modules are configured as standby.
• It is in a full protected state, because:
Total active output power (12800) is greater than the required budgeted power (3505).
and
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Environmental Monitoring and Power Management
Example: n+n Redundant Mode (Power Supply Modules of the Same Capacity + Full Protected State)