What is the Power Distribution Principle of MA5608T?

Huawei Small-size MA5608T chassis adopts AC and DC power supply. This topic describes the power distribution principle of the MA5608T chassis.

The MA5608T chassis adopts -48 V (-38.4 V to -57.6 V)/-60 V (-38.4 V to -72 V) DC power supply and AC power supply. The following uses the -48 V DC as an example.

Figure 1 Power distribution principle of the MA5608T chassis 

The Huawei MPWC DC power interface board leads two -48 V input to the backplane, and then the backplane supplies power to each board.

The MPWC boards supports two -48 V DC input. If one input is off, the other supplies power to the chassis can guarantee normal running of the system.

The Huawei MA5608T MPWD AC power interface board supports the AC input. After AC/DC conversion, the power is supplied to the system backplane at -48 V DC.

Two MPWE boards can be configured for dual-system hot backup. Each MPWC board supports one -48 V DC input. If one MPWE board is off, the other supplies power to the chassis can guarantee normal running of the system.