Huawei NetEngine 8000 F User Manual

as short as possible. To reduce power consumption and installation cost, the loop
voltage drop from the battery port to the equipment port should be less than 3.2
V.
● A large-scale enterprise can deploy an independent power supply system on
each oor to supply power to the telecommunications equipment room on
the respective oor.
● A medium-scale enterprise can use a power room and a battery room for
centralized power supply or use distributed power supply systems.
● A small-scale enterprise can deploy an integrated power supply system in its
equipment room but must take measures to prevent corrosive gases released
from batteries from eroding circuit boards of telecommunications equipment.
Table 4-33 lists the
specications for the DC power supply.
Table 4-33 Specications for the DC power supply
Item Requirements
DC power
capacity to
support the
surge current
Greater 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 rectier
ranges from -46.0 V to -56.4 V, with the regulated voltage
precision less than or equal to 1%.
Overshoot
amplitude of
switch on/o
Integral value of the DC output voltage ±5%
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%.
Recommendations for DC Power Supply
The following are recommendations for the DC power supply.
● Use distributed power supply mode. Use multiple DC power supply systems
and put power equipment in multiple locations.
● Adopt a standard DC power supply system, and set the output voltage to the
communications equipment within the required range.
● Improve reliability of the AC power supply system to reduce the necessary
capacity of storage batteries. For small
oces, increase the capacity of
storage batteries if it is
dicult to enhance reliability of the AC power supply
system.
HUAWEI NetEngine 8000 F
Hardware Guide 4 Hardware Installation and Parts Replacement
Issue 05 (2023-03-31) Copyright © Huawei Technologies Co., Ltd. 499

Huawei NetEngine 8000 F Specifications

General

Brand	Huawei
Model	NetEngine 8000 F
Category	Network Router
Language	English