Huawei NE05E Hardware Manual page 400

HUAWEI NE05E,NE08E
Hardware Guide
equipment. The DC power supply system consists of storage battery, primary
power supply (rectifier), DC distributor and control panel.
Storage battery
Storage battery is an essential component of the DC power distribution system of
router equipment. Functionally, it serves to:
●
●
●
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The storage battery of router equipment is charged and discharges under a low,
constant voltage.
Table 4-8 DC charge/discharge status and voltage requirements
Power
Supply
Categor
y
DC -48 V
Issue 05 (2023-03-31)
Stabilize the voltage for the transmission equipment to work reliably.
Store energy. In the case of outage of mains, the storage battery can feed
power for a period of time, which depends on its capacity, so that the
communication will not be interrupted immediately.
Filter for large capacitors. The storage batteries are useful for absorbing surge
voltage from rectifiers and preventing noise and power frequency interference
from getting into the communication equipment.
Automatically shut down. When the voltage of the storage battery drops to
below -43.2 V, the control circuit can automatically shut down the output.
Table 4-8
Mains
Supply
Status
Normal
Outage
Resumed
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4 Hardware Installation and Parts Replacement
shows the relevant requirements:
Battery DC Voltage
Charge / Value
Discharge
Floating Floating charge
charged voltage reaches
by the 53.5 V.
rectifier
Discharge Discharge
voltage reaches
43.2 V.
Under When the
loading charging
conditions, voltage reaches
automatic 56.4 V, it
ally automatically
charged changes to
with a constant
current 0.1 voltage mode,
to 0.15 that is changes
times of the charging
the status to
battery floating charge.
capacity.
Terminal The
Voltage of Number of
Each Storage
Storage Batteries
Battery in Each
Group
2.23 V 24 PCS
1.8 V
2.35 V
392