AC PSUs and supplying AC power to the chassis

The AC version of the FortiGate-7040E chassis back panel includes three hot swappable AC PSUs. At least two PSUs (PWR1 and PWR2) must be connected to power. PWR4 is a backup PSU that provides 2+1 redundancy. You can add a fourth power supply to PWR3 to provide a second backup PSU and 2+2 redundancy. See FortiGate-7040E back panel for locations of the PSUs.

All PSUs should be connected to AC power. To improve redundancy you can connect each PSU to a separate power source.

Use a C15 Power cable, supplied with the chassis, to connect power to each PSU C16 power connector. C15/C16 power connectors are used for high temperature environments and are rated up to 120°C.

AC PSU showing C16 power connector

The PSU LED indicates whether the PSU is operating correctly and connected to power. If this LED is not lit, check to make sure the PSU is connected to power. If the power connection is good then the PSU has failed and should be replaced.