CloudEngine 16808 Power Supply System
Overview
The CloudEngine 16808 supports DC, AC, and high-voltage DC power supply modes. The device is connected to an external power distribution system through a power entry module (PEM) and supports power sources A and B. Each power module (PM) has two inputs. The PM converts the power supplied to the PEM to power the entire device.
- If only one power distribution system is available in the equipment room, connect all the power inputs to terminal blocks or power sockets A1 to A10 or B1 to B10.
- If two power distribution systems are available in the equipment room, you can use them in current balancing mode.
- Connect one half of one system's power inputs to terminal blocks or power sockets A1 to A5 and the other half to terminal blocks or power sockets B1 to B5.
- Similarly, connect one half of the other system's power inputs to terminal blocks or power sockets A6 to A10 and the other half to terminal blocks or power sockets B6 to B10.
- When both power sources A and B are available:
- In AC or high-voltage DC scenarios, power source A is used by default. If power source A is faulty, the system automatically switches to power source B.
- In DC scenarios, if the two power sources have different voltages, the power source with a higher voltage provides a higher current.
If AC & high-voltage DC inputs are available to both power sources A and B, the 220 V AC input is used by default. If the 220 V AC input is faulty, the system automatically switches to the high-voltage DC input.
- Requirements for the power distribution of a customer's cabinet: The output power of power sources A and B must be greater than the maximum input power of the device.
Components
As shown in Figure 3-6, the power supply system of the CloudEngine 16808 is located at the top of the chassis. It consists of PMs and power switches at the front of the chassis, and a PEM at the rear of the chassis. Table 3-9 describes the functions of each module.
No. |
Component |
Description |
|---|---|---|
1 |
PM |
Converts the power supplied to a PEM to power the entire device through the power backplane and busbar. |
2 |
Power switch |
Controls the power output of PMs. The two power switches back up each other. When one or both of them are in ON state, the power output of PMs is enabled. NOTICE:
To ensure reliability, both power switches must be turned on when the device is running. |
3 |
PEM |
Connects to an external power distribution system. The PEM can be divided into power supply areas A and B, corresponding to two power distribution systems with different sources, respectively. This design implements 1+1 backup of external power distribution systems. If a power supply system in the equipment room is faulty, the device is not powered off. This ensures the reliability of the entire power supply system. |
PM and PEM Applications
The CloudEngine 16808 supports multiple power supply scenarios, which vary according to the installed PEM and PMs. Table 3-10 describes the power supply scenarios and PEM/PM applications.
Power Supply Scenario |
PEM |
PM |
|---|---|---|
-48 V DC power supply |
CloudEngine 16808 DC PEM |
2200 W DC PM |
AC power supply |
CloudEngine 16808 AC & high-voltage DC PEM |
3000 W dual-input AC & high-voltage DC PM |
240 V high-voltage DC power supply |
CloudEngine 16808 AC & high-voltage DC PEM |
3000 W dual-input AC & high-voltage DC PM |
380 V high-voltage DC power supply |
CloudEngine 16808 AC & high-voltage DC PEM |
3000 W dual-input AC & high-voltage DC PM |
PM and PEM Application Principles
The PEM is integrated into the chassis and does not need to be configured onsite. Do not remove or install the PEM onsite. PMs can be configured based on the overall power consumption of the device to flexibly supply power.
DC PMs and AC & high-voltage DC PMs of the CloudEngine 16808 support N+1 backup. N indicates the number of PMs configured based on the estimated power consumption of the chassis. The maximum power supply capability of the system is equal to the sum of the maximum output power of N PMs. In N+1 backup mode, N PMs provide power to the chassis, and one PM works as a backup to implement power redundancy.
The DC PM with the output power of 2200 W is used as an example. If PMs are configured according to the N+1 backup mechanism (that is, one PM is added based on the number of PMs required), the value of N x 2200 W must be greater than the power consumption of the entire system, as described in Table 3-11.
Overall Power Consumption |
PM Connections |
PEM Connections |
Redundancy |
|---|---|---|---|
P < 2200 W |
1, 2 |
A1, B1, A2, B2 |
1+1 |
2200 W ≤ P < 4400 W |
1, 2, 3 |
A1, B1, A2, B2, A3, B3 |
2+1 |
4400 W ≤ P < 6600 W |
1, 2, 3, 4 |
A1, B1, A2, B2, A3, B3, A4, B4 |
3+1 |
... |
... |
... |
... |
17600 W ≤ P < 19800 W |
1, 2, 3, 4, 5, 6, 7, 8, 9, 10 |
A1, B1, A2, B2, A3, B3 ... A10, B10 |
9+1 |
The AC & high-voltage DC PM with the output power of 3000 W is used as an example. If PMs are configured in N+1 backup mode, the product of N multiplied by 3000 W must be greater than the power consumption of the entire system, as described in Table 3-12.
Overall Power Consumption |
PM Connections |
PEM Connections |
Redundancy |
|---|---|---|---|
P < 3000 W |
1, 2 |
A1, B1, A2, B2 |
1+1 |
3000 W ≤ P < 6000 W |
1, 2, 3 |
A1, B1, A2, B2, A3, B3 |
2+1 |
6000 W ≤ P < 9000 W |
1, 2, 3, 4 |
A1, B1, A2, B2, A3, B3, A4, B4 |
3+1 |
... |
... |
... |
... |
24000 W ≤ P < 27000 W |
1, 2, 3, 4, 5, 6, 7, 8, 9, 10 |
A1, B1, A2, B2, A3, B3 ... A10, B10 |
9+1 |
When no PM is installed in a PM slot, reserve the filler panel.
