TCX1000-RDM20 DC Power Supply Description
The DC power supplies in the TCX1000-RDM20 (see Figure 1) are hot-removable and hot-insertable field-replaceable units (FRUs) that you can install without powering off the TCX1000-RDM20 or disrupting the functioning of the TCX1000-RDM20. The TCX1000-RDM20 has two power supplies. Both the power supplies are initially installed at the factory.
Plastic cover for DC terminals
Each of the two 650-W power supplies has a single DC input. The power supply provides 12 VDC output with a standby voltage of 12 VDC. A TCX1000-RDM20 has twice the number of power supplies needed to power all of the components in the device, which is known as 1+1 redundancy. When the TCX1000-RDM20 has both power supplies installed and connected to power, the device has full power redundancy. If a power supply fails or is removed, the other power supply provides power for the full load without interruption.
The fan in the power supply provides front-to-back airflow, which is also known as airflow out (AFO).
We recommend that the 48-VDC facility DC source be equipped with a circuit protector rated as required by local code.
We recommend that the 60-VDC facility DC source be equipped with a circuit protector rated as required by local code.
For more information about power system redundancy, see TCX1000-RDM20 Component Redundancy.