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TCX1000-RDM20 AC Power Supply Description


The AC 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 power supplies are initially installed at the factory. See Figure 2 for the power numbering scheme.

Figure 1: AC Power Supply in a TCX1000-RDM20
AC Power Supply in a TCX1000-RDM20
Male power connector
Ejector lever
Figure 2: Power Supply Numbering
Power Supply Numbering

Each of the 650-W power supplies has a single AC 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).


To avoid electrical injury, carefully follow instructions in Connecting AC Power to a TCX1000-RDM20 , Installing a Power Supply in a TCX1000-RDM20, and Removing a Power Supply from a TCX1000-RDM20.


For more information about power system redundancy, see TCX1000-RDM20 Component Redundancy.