Power Supply Architecture

• DC power supply

  The CloudEngine 16808 must be equipped with one DC PEM. This PEM has 20 terminal blocks, every 10 of which are connected to one power source. Each DC PM has two power inputs, each of which comes from one power source in the equipment room. The DC PM converts and outputs the power to the power backplane, allowing the two power sources to back up each other. Figure 3-11 shows the DC power supply architecture of the CloudEngine 16808.

  DC power supply architecture of the CloudEngine 16808
• AC & high-voltage DC power supply

  The CloudEngine 16808 must be equipped with one AC & high-voltage DC PEM. This PEM has 20 power sockets, every 10 of which are connected to one power source. Each AC & high-voltage DC PM has two power inputs, each of which comes from one power source in the equipment room. The AC & high-voltage DC PM converts and outputs the power to the power backplane, allowing the two power sources to back each other up.

  The CloudEngine 16808 can be directly connected to a power source or indirectly connected one through a power distribution unit (PDU). Directly connecting a device to a power source uses cable connections similar to those in the DC power supply mode, and is not described here. The following describes the power supply architecture in the scenario where a device is indirectly connected to a power source through a PDU.

  The CloudEngine 16800 seriesswitches provide two types of PDUs:

  • AC PDU: Each AC PDU provides one power input and six power outputs.
  • High-voltage DC PDU: Each high-voltage DC PDU provides two power inputs and eight power outputs. Each input corresponds to four outputs.

  AC, high-voltage DC, and AC & high-voltage DC hybrid power supplies are supported.

  AC power supply architecture of the CloudEngine 16808
  High-voltage DC power supply architecture of the CloudEngine 16808
  AC & high-voltage DC hybrid power supply architecture of the CloudEngine 16808