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MA5600T, MA5603T, and MA5608T Hardware Description 25

This manual describes the Huawei MA5600T, MA5603T, and MA5608T hardware specifications, such as dimensions, weight, power consumption, capacity, structure, chassis, slots, boards, power modules, and optical modules.
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Power Distribution Principle

Power Distribution Principle

The MA5603T service subrack adopts DC power supply. This topic describes the power distribution principle of the MA5603T service subrack.

Figure 2-25 shows the power distribution principle of the MA5603T service subrack.

The MA5603T service subrack supports -48 V (-38.4 V to -57.6 V)/-60 V (-38.4 V to -72 V) power supply. The following uses the -48 V as an example.

Figure 2-25  Power distribution principle of the MA5603T service subrack

The PRTE power interface board leads one -48 V input to the backplane, and then the backplane supplies power to each board.

Two PRTE boards can be configured for dual-system hot backup. If one PRTE board is off, the other supplies power to the service subrack can guarantee normal running of the system.

Updated: 2019-03-18

Document ID: EDOC1000060621

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