Huawei CE128000 Series Switch PAC-2700WA 2700 W AC Power Module. Functions of the PAC-2700WA
Function
Description
Indicator Status
Input protection
Input undervoltage protection
In this protection state, the power module is turned off and stops supplying power. When the system recovers from input undervoltage, the power module can automatically resume power supply.
The Input indicator shown in Figure 2 is blinking green.
Input overvoltage protection
In this protection state, the power module is turned off and stops supplying power. When the system recovers from input overvoltage, the power module can automatically resume power supply.
The Input indicator shown in Figure 2 is blinking green.
Input overcurrent protection
In this protection state, the power module is turned off and stops supplying power. The power module cannot automatically resume power supply and needs to be replaced.
The Input indicator shown in Figure 2 is off.
Output protection
Output overvoltage protection
In this protection state:
If output overvoltage is caused by the power module itself, the power module stops supplying power. When the system recovers from output overvoltage, the power module cannot automatically resume power supply.
If output overvoltage is caused by increase of the input voltage received from the external power source, the power module stops supplying power. When the system recovers from output overvoltage, the power module can automatically resume power supply.
If output overvoltage is caused by the power module itself, the Output indicator shown in Figure 2 is off and the Alarm indicator is steady red.
If output overvoltage is caused by increase of the input voltage received from the external power source, the Output indicator shown in Figure 2 is steady green.
Output current limiting protection
In this protection state, the output current is limited to a certain value. When the system recovers from output overcurrent, the power module can automatically resume power supply.
The Output indicator shown in Figure 2 is steady green.
Output short-circuit protection
In this protection state, the power module supplies power intermittently, and the output current is limited within a range. When the system recovers from output short-circuit, the power module can automatically resume power supply.
The Output indicator shown in Figure 2 is off.
Overtemperature protection
When the temperature of the power module ranges from 55°C to 75°C, the output current reduces linearly as the temperature increases. When the temperature exceeds 75°C, the power module stops supplying power. When the temperature falls below 75°C, the power module can automatically resume power supply.
When the temperature of the power module ranges from 55°C to 75°C, the Output indicator shown in Figure 2 is steady green. When the temperature exceeds 75°C, the Output indicator is off.
Hot swap
The power module is hot swappable.
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Heat dissipation
A 2700 W AC power module has its own fans, which use a front-to-back airflow design.
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Technical specifications
Item
Description
Dimensions (W x D x H)
106.5 mm x 485 mm x 41 mm (4.19 in. x 19.05 in. x 1.61 in.)
Weight
2.2 kg (4.85 lb)
AC input voltage range
90 V AC to 290 V AC; rated value: 110 V AC/220 V AC
AC input frequency
45 Hz to 65 Hz; typical: 50 Hz/60 Hz
Maximum input current
16 A
Rated output voltage
53.5 V DC
Rated output power
2700 W
NOTE:
When the input voltage is lower than or equal to 175 V AC, the rated output power reduces to 1200 W.
PAC-2700WA FAQ
Q1: Which Huawei devices does the PAC-2700WA support? How compatible is it?
A1: It mainly supports Huawei CE9800, CE8800, and CE7800 series mid-to-high-end switches. Its size and power interface are perfectly matched, with 100% compatibility. It's plug-and-play, requiring no additional debugging.
Q2: What's the difference between the 2700W power rating and other power models (such as 3000W and 2200W)? How should I choose?
A2: The 2700W prioritizes balanced power and energy efficiency, suitable for mid-to-high-end switches and medium-to-high density interface cards; the 3000W is suitable for heavy-load scenarios with ultra-high-end switches; and the 2200W is suitable for light-load scenarios with mid-range devices. For medium to large data centers, the PAC-2700WA offers better cost-effectiveness for standard core equipment.
Q3: Does redundant deployment require complex configuration? Will a single module failure affect device operation?
A3: Supports one-click activation of redundancy mode, simplifying the configuration process; after a single module fails, the remaining modules instantly take over the power supply, ensuring seamless equipment operation and uninterrupted service, requiring only the replacement of the faulty module later.
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