DPC DHG07-48/42 User manual

Small Cell Power System
User’s Manual
（D2212901500104SS A）
Beijing Dynamic Power CO., Ltd.

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Statement
Beijing Dynamic Power Co., Ltd. (abbreviation :DPC) provides customers with comprehensive technical
support. Users can contact the nearest DPC office or customer service center, or directly contact the
company headquarters.
Beijing Dynamic Power CO., Ltd.
Copyright, all rights reserved.
No part or all of this document may be extracted, copied or translated in any way without the written
permission of the company, and may not be transmitted in any form (including materials, publications
and networks).
The contents of this document are subject to change without notice due to product version upgrades or
other reasons.
Beijing Dynamic Power Co., Ltd.
Address: No.8, Xinghuo Road, Science Park City, Fengtai District, Beijing, China
Postal Code:100070
Website: www.dpc.com.cn ; en.dpc.com.cn
Hotline：[phone]

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Safety Precautions
Read the operating instructions and precautions carefully before starting installation or operation to
avoid accidents. The “Caution, Warning, Hazard” and other matters in the product and product
manual do not represent all the safety precautions that should be observed. They are only used as a
supplement to the safety precautions in various installation and use operations. Therefore, the
person responsible for product installation and operation must undergo professional training, master
the correct operation method of the system and various safety precautions before installing or
operating the equipment.
In the installation or operation of the company's equipment, it must comply with the relevant industry
safety regulations and engineering design specifications, and strictly abide by the relevant
equipment precautions and special safety instructions provided by Beijing Dynamic Power Co., Ltd.
Electrical Safety
Grounding
⚫When installing the device, you must first install the PGND cable. When you remove the device,
you must remove the PGND cable.
⚫Ensure that the equipment is reliably grounded before powering up.
High voltage
Some parts of the power system are operated with high voltage, and direct
contact or indirect contact with these parts through wet objects can be fatal.
Improper, incorrect operation may result in accidents such as fire or electric
shock. The area where the AC cable is routed must comply with local
regulations and specifications. Personnel performing various high-voltage
operations must have high-voltage, AC operation qualifications.
⚫The installation of this equipment must comply with the safety regulations of the relevant
industry and the engineering design specifications of the equipment. The personnel who
perform the equipment installation operation must have the qualifications of high voltage and
alternating current.
⚫A prohibited sign must be attached to the device or switch that cannot be operated during the
installation process.
Tools
When performing various operations on high voltage and alternating current,
special tools must be used, and ordinary or homemade tools must not be
used.
Short circuit
It is strictly forbidden to short-circuit the positive and negative DC power
distribution of the power system or short-circuit the non-grounding pole (end)
to the ground. The power supply equipment is a constant voltage DC power
supply equipment. When short circuited, it will cause strong arc or equipment
fire, which will endanger the safety of people and equipment.

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⚫Before connecting a load (powered device) cable or battery cable, the polarity of the cable and
interface terminals must be strictly checked.
⚫It is strictly forbidden to wear conductive objects such as watches, bracelets, bracelets and rings
during operation.
⚫Insulation tools must be used during operation.
⚫When operating with power, pay attention to the impact of the operating space on live working. If
necessary, set insulation protection measures in the operating area to avoid the risk of short
circuit when the tool is stuck or disconnected.
Thunderstorm
It is strictly forbidden to carry out high voltage and alternating current
operation under thunderstorms.
⚫In thunderstorms, strong electromagnetic fields are generated in the atmosphere. To avoid
damage to the equipment caused by lightning strikes, ensure that the equipment is well
grounded.
Static electricity
Static electricity generated by the human body can damage static-sensitive
components on the board, such as large-scale integrated circuits (ICs).
Before touching the device, circuit board or IC chip, etc., must wear an
anti-static wrist strap and ground the other end of the ESD-preventive wrist.
⚫When holding a circuit board, you must hold the component part of the edge of the board. Do not
touch the chip with your hand.
⚫The removed circuit board must be packaged in an antistatic package and stored or transported.
Liquid proof, explosion proof
This product should be placed in an area away from liquids. It is forbidden to
be installed under the leaky position such as vents, air conditioning ports, and
the data room outlet windows to prevent liquid from entering the device and
causing short circuit.
Do not place the device in a flammable, explosive, corrosive gas or smog
environment. Do not perform any operation in this environment.
⚫Do not flush the electrical components inside and outside the equipment with water.
⚫When you notice water, moisture, or condensation in the cabinet, turn off the power immediately.
When operating in a humid environment, conductive liquid such as water should be strictly
prevented from entering the equipment.
Battery safety
Before you perform battery work, you must read the battery's instruction
manual carefully, follow the safety precautions specified, and the correct
connection method for the battery.
⚫The environment of the battery is required to be free from direct sunlight or rain, dry and well
ventilated, free of corrosive gases, away from fire and organic solvents.
⚫Excessive battery temperature can cause battery deformation, damage, or electrolyte spillage.
⚫The battery has extremely high electrical energy, and unregulated operation can be a serious
hazard. The safety precautions specified in the battery operation must be strictly followed during

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operation. Pay attention to the influence of the operating space on live working, and the battery
short circuit should be carefully guarded.
⚫Make sure the battery circuit is disconnected before installation, maintenance, disassembly, etc.
⚫The battery should always keep the electrode facing up during the handling process. It is strictly
prohibited to invert and tilt.
⚫Special insulated tools must be used for operation.
⚫Protective measures must be taken during operation. Protective glasses, rubber gloves, rubber
boots, rubber aprons, etc. should be used.
Others
Structural component
It is forbidden to modify the structure of the equipment and replace
the position of the plate, replace the components and drill holes in
the cabinet without authorization. Changes that do not meet the
requirements will affect the heat dissipation and electromagnetic
shielding of the equipment. Self-drilling can also cause metal chips
to enter the cabinet and cause short circuit.
Sharp corner of object
Wear protective gloves when handling equipment by hand to prevent cuts
from sharp objects