DC PSUs and supplying DC power to the chassis

The FortiSwitch-AX9004G chassis front panel can include up to eight hot swappable -48Vdc to -60VDC PSUs. The capacity of each PSU is 2500W..

See FortiSwitch-AX9004G front panel for locations of the PSUs. The diagram shows AC PSUs, which can be replaced with DC PSUs.

The number of PSUs required by a chassis depends on the number of supervisors and line cards in the chassis.

If the chassis does not have enough power because PSUs have failed or become disconnected, the supervisors and line cards within the chassis may shut down.

Each PSU is designed to be installed in a Telecom data center or similar location that has available -48VDC power fed from a listed 100A circuit breaker. To improve redundancy you can connect each power supply to a separate power circuit.

DC power cables are intended to be used only for in-rack wiring, must be routed away from sharp edges, and must be adequately fixed to prevent excessive strain on the wires and terminals. Make sure DC terminal rings are securely and safely fastened to PSU terminals.

DC PSU

To connect the DC PSUs directly to a power circuit, Fortinet supplies custom DC power cables that connect to DC power jack on each DC PSU. Insert the connector into the DC PSU until it clicks, secure the release tab, and tighten the screw to hold the cable in place. DC terminal rings on the supplied cable must be securely and safely fastened to the your power supply terminals.