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HUAWEI NIP6800 Series V500 Hardware Guide

This document of the NIP6800 Series describes hardware structure, installation guide, and hardware maintenance. The content of this document includes the appearance and specifications of the product, the supported expansion cards, preparation before the installation, installation, cabling, and hardware replacement.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Power Supply Requirements

Power Supply Requirements

This section describes the requirements for power supply conditions.

DC Power Supply Requirements

The telecommunication site should receive stable and reliable DC power supply. Deploy the power equipment near the telecom equipment to make the DC feeder as short as possible. To reduce power consumption and installation costs, ensure that the loop voltage drop from the battery port to the equipment port is less than 3.2 V.

For sites with heavy traffic or with more than two switching systems, two or more independent power supply systems are required.

For a large-scale communication site, configure multiple power supply systems in different floors to supply power to different equipment rooms. For a common communication site with medium traffic, configure a centralized power room or battery room. You can also adopt the distributed power supply mode. For a site with light traffic, use integrated power supply. Protect the circuit board from corrosive gas released by the battery.

Table 4-14 lists the specifications for the DC power supply.
Table 4-14  Specifications for the DC power supply

Item

Specifications

Range of the -48 V input voltage

-38 V to -72 V

DC power capacity for supporting the surge current

At least more than 1.5 times the rated current

Regulated voltage precision

If the AC input voltage is in the range of 85% to 110% of the rated value and the load current is in the range of 5% to 100% of the rated value, the output voltage of the rectifier is an integer in the range of -46.0 V to 56.4 V with a regulated voltage precision equal to or lower than 1%.

Overshoot amplitude of switch on/off

Integral value of the DC output voltage ±5%

Peak-to-peak noise voltage

≤200 mV

Dynamic response

The recovery time is less than 200 ms. The overshoot is in the range of the integral value of the DC output voltage ±5%.

DC Power Supply Recommendations

Recommendations for DC power supply are as follows:
  • Adopt dispersed power supply mode. Use multiple DC power supply systems and set power equipment in multiple positions.
  • Adopt the standard DC power supply system and set the output voltage of the communications equipment within the required range.
  • Improve the reliability of the AC power supply system, and reduce the capacity of storage batteries. For small offices, if it is difficult to enhance the reliability of the AC power supply system, increase the capacity of storage batteries.
  • The total capacity of the high-frequency switch rectifier must satisfy the power requirements for the communication loading and battery charging. Configure the backup rectifier modules. If there are 10 or fewer active modules, configure one backup module. If there are more than 10 active modules, configure one backup module for every 10 active modules.
  • Install storage batteries in two or more groups. Capacity is determined by the duration when the storage batteries supply power to the load. Batteries in most offices should be able to supply power for at least one hour.

AC Power Supply Requirements

An AC power supply that consists of mains, Uninterrupted Power Supply (UPS), and an independently acquired electric generator set is suitable for integrated power supply. In addition to meeting server load requirements, AC power supply has features such as simple connection line, safe operation, flexible scheduling, and easy maintenance.

A low voltage power supply should adopt three-phase five-wire mode or monophase three-wire mode. Low AC power supply voltages are 110 V/127 V/220 V/380 V, with a frequency of 50 Hz.

UPS is required to function as the AC potential power, which should be the same phase as mains. The switching time for UPS and mains should be less than 10 ms; otherwise, the device will reboot or reset.

For power distribution capacity in the equipment room, the working current and fault current of the device should be calculated. Ensure that independent AC power supply protects the independent device. Configure the current capacity of the protection switch of the equipment room as greater than the current capacity of the device.

Table 4-15 describes the voltage range of AC power supply for the device.
Table 4-15  Voltage range of AC power supply

Item

Requirements

AC power capacity to support the device

-10% to +5% of the rated voltage

AC power capacity to support the power modules and important buildings

-15% to +10% of the rated voltage

Frequency of alternating current

-4% to +4% of the rated voltage

Voltage wave shape sine distortion rate

Within 5% of the rated current

As an automated generator set, the independently acquired electric generator set of telecommunication server with the standard interface supports telecommunication protocol, remote telecommunication, monitoring, and control by adopting automatic input, removal, and supply.

AC power cables should meet the following requirements:
  • AC neutral uses the conductor with the same cross section as the phase line.
  • AC wires are non-flammable and comply with local regulations. Low-voltage power distribution rooms comply with local regulations.

AC Power Supply Recommendations

Recommendations for AC power supply are as follows:
  • If the power voltage of the mains, which supplies power for the device directly, exceeds the rated voltage by -10% to 5% or exceeds the voltage range that the device can support, a voltage regulating device or voltage stabilizing device is required.
  • If the mains does not supply power for the device directly, the mains voltage exceeds the rated voltage by -15% to 10%, or exceeds the voltage range that the DC power supply device allows AC to input, a voltage regulating device or voltage stabilizing device is required.
  • The UPS system or inverter power supply system is required for uninterrupted or non-transient telecommunication load of AC.
  • When an abnormality occurs on mains, the telecommunication server should be equipped with independently acquired electric generator set as power supply to ensure the key telecommunication load and force load. The capacity should be not less than 150% to 200% of the total uninterrupted AC power device.
  • Storage batteries are usually installed in two parallel groups. UPS storage batteries are generally installed in one group. Redundancy required for UPS can adopt concatenation or parallel connection. When an inverter or a UPS is used, the active inverter is determined by the maximum power and a backup inverter is required.
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Updated: 2019-01-04

Document ID: EDOC1100059253

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