H12-411_V2.0 Exam Questions

In the main inverter mode, when the AC input voltage and frequency exceed the range allowed by the UPS, the UPS will switch from the main inverter mode to the static bypass mode.

The basic principle of the rotary dehumidifier is that water vapor encounters the cooling tube fins and condenses into water droplets to dehumidify.

FM1000A V2R3 version customized spray can meet UL120min fire resistance requirements.

The bypass module of UPS5000-E-200K is the same as that of UPS5000-E-400K.

Huawei Precision Air Conditioner NetCol5000-C30 fan cannot be maintained online

The Modbus protocol is a fieldbus protocol that uses a master-slave mode. The protocol running on RS485 is called the Modbus-RTU protocol, which is a type of Modbus protocol.

When a third-party system needs to integrate NetEco or Huawei equipment, Huawei needs to provide northbound interfaces and protocols, and the third-party system manufacturer needs...

During daily operation of an outdoor substation, the surrounding environment is humid and dusty. Engineers should equip this substation with an ordinary oil-immersed transformer.

The actual working current of ACB circuit breaker can reach several thousand amperes, and it also requires high segmentation capacity and thermal stability.

The access control system can only set the user to open the door but cannot set when the door can be opened.

Sensible heat ratio = sensible heat / total heat / sensible heat / (sensible heat + latent heat)

The smaller the PUE value of a data center room, the greater the power consumed by the supporting infrastructure of the data center, such as cooling and power supply.

The general connection method of lead-acid batteries is to connect them in series first and then in parallel.

The function of the fire protection system is to automatically capture the smoke or heat when a fire occurs in the fire detection area, thereby issuing an audible and visual alarm...

Huawei surveillance system NETECO supports real-time video browsing.

FM2000 integrated power distribution cabinet has two input switches, single-channel MCCB and ATS.

Cooling towers can be divided into cross flow and counter flow types according to the direction of air flow.

FM1000A V2R3 version IT solution comes standard with cabinet spring damping device

FM2000's integrated UPS/integrated power distribution cabinet/precision power distribution cabinet can detect branch terminal temperature through NTC probes. This function is optio...

FM1000A V2R3 version can be customized with bulletproof shell

FusinoModule500&FusinoModule800 can be installed directly on the cement floor.

FusinoModule500&FusinoModule800 remote WEB interface monitoring must be configured with unified network management software.

Using IGBT rectifier high-frequency machine can significantly reduce input current harmonics and improve power factor compared to SCR rectifier power frequency machine.

FUsinoModule2000 sensor uses POE ring network power supply to provide control system signal transmission reliability and can be used to control standards.

FUsinoModule1000A V2R3 version 20-foot CT solution supports maximum CT load of 8KW.

FUsinoModule1000A V2R3 version 40-foot CT solution can install 8 CT cabinets.

The power supply types of FM800 and FM500 are 380/400/415/3Ph/50Hz and 220/230/240/1Ph/50Hz respectively.

The NetEco management system can automatically calculate the electricity expenses of the computer room based on the tiered electricity price strategy.

PDU8000 precision power distribution cabinet supports single-channel input and dual-channel input.

The government cloud only has room construction requirements in provinces and cities, but not in districts and counties.

FusinoModule2000 cabinet can support 1800KG static load, the highest in the industry.

NetEco management system can provide power distribution topology map function, which can realize the full-link monitoring of power distribution from the introduction of mains power...

FusinoModule500&FusinoModule800 cabinet heights are both 24U, 42U are optional

In the main circuit mode, when the UPS front-end voltage fluctuates at 220V?0%, the UPS output voltage will also fluctuate greatly.

Huawei's monitoring system NetEco can only manage the infrastructure of a single data center and cannot centrally manage the infrastructure of multiple data centers in different re...

Huawei's monitoring system NetEco cannot provide an SNMP interface to third-party network management systems.

The principle of the condenser is to cool the high-pressure gaseous refrigerant and release heat into liquid, thereby achieving heat transfer and release.

The refrigeration performance of the environmentally friendly refrigerant R410A is better than that of the non-refrigerant R22.

At present, the installation methods of batteries in data centers are mainly rack installation and cabinet installation.

During the installation of the battery, the maintenance channel of the high-voltage battery pack used should be insulated.

The humidifier used in Huawei's line-level precision air conditioners is an infrared humidifier.

The main functions of MCB circuit breakers include circuit breaker protection and overload protection.

Huawei precision air conditioners have RS485 communication interfaces for remote inspection of the system and parameter settings and provide modbus open protocols to access the com...

The ECC500 collector has 4 built-in expansion card slots, which can be used to install two types of expansion cards: RS485 and AI/DI.

The basic refrigeration principles of air-cooled air conditioners and water-cooled air conditioners are the same.

FUsinoModule1000A V2R3 version 40 feet IT solution can provide 7~8 IT cabinets

FusinoModule500&FusinoModule800 can be equipped with emergency fans.

In the data center room, the lower the relative humidity of the air, the better.

Building monitoring is one of the eight subsystems of data center infrastructure.

The increase in cabinet power density will lead to the emergence of local hot spots in the computer room. Row-level air conditioning can solve the problem of excessive local hot sp...