Description: This indicates whether the present configuration can continue to operate if any one of the power supplies fail or is removed.

In certain configurations, the hub may need one, two or three power supply modules. The addition of an extra power supply module will allow for the failure of any one of the power supply modules. A power system such as this which allows for the failure of any one of the power supplies is referred to as a 'redundant power system'. Some redundant power systems provide standby power supplies which engages only when a primary supply fails. Unlike this type of system, the DEChub900 power system employs load sharing. Each power supply provides a portion of the power necessary to power the system. When redundant power is available in the system, the failure of one supply causes the load of the remaining supplies to increase sufficiently to make up for the failed supply.