Huawei ETP4830-A1 User manual

ETP4830-A1 Embedded Power
User Manual
Issue
10
Date
2017-08-08
HUAWEI TECHNOLOGIES CO., LTD.

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Copyright © Huawei Technologies Co., Ltd. 2017. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://e.huawei.com

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About This Document
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About This Document
Purpose
This document describes the DC power system in terms of product overview, components,
installation, commissioning, and maintenance. This document also describes operations for
the site monitoring unit (SMU) and rectifiers.
The figures provided in this document are for reference only.
Intended Audience
This document is intended for:
Sales specialist
Technical support personnel
Maintenance personnel
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not avoided,
could result in equipment damage, data loss, performance
deterioration, or unanticipated results.
NOTICE is used to address practices not related to personal injury.
Calls attention to important information, best practices and tips.
NOTE is used to address information not related to personal injury,
equipment damage, and environment deterioration.

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iii
Change History
Changes between document issues are cumulative. The latest document issue contains all the
changes made in earlier issues.
Issue 10 (2017-08-08)
Modified section "2.3 Configuration".
Modified section "4.3.5 Connecting the Battery Cable".
Issue 09 (2016-01-28)
Chapter 4 Installation
Added section "4.3.7 Connecting the Dual-Live of IT 230 V Net or TN 208 V Net AC Input
Power Cable".
Issue 08 (2014-10-30)
Chapter 6 Commissioning
Added section "6.5 Setting Battery Parameters".
Issue 07 (2014-07-18)
Chapter 6 Commissioning
Modified "6.5 Setting Battery Parameters".
Added section "6.6 (Optional) Setting DC Parameters".
Issue 06 (2014-02-20)
Chapter 4 Installation
Added section "4.3.2 (Optional) Installing Dry Contact Signal Cables".
Chapter 6 Commissioning
Added section "6.4 Setting System Type".
Issue 05 (2013-07-02)
Add the configuration of R4815G1, SMU01Aand SMU01C.
Issue 04 (2013-05-07)
Optimized the content of the document, including standardizing the terminology and
improving the accuracy of the description
Issue 03 (2013-04-18)
Modify operating temperature, input voltageand output voltage.
Issue 02 (2012-12-03)
Port description is modified.

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Issue 01 (2012-05-11)
This issue is the first official release.

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Contents
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Contents
About This Document.................................................................................................................... ii
1 Safety Precautions.........................................................................................................................1
1.1 General Safety ..............................................................................................................................................................1
1.2 Electrical Safety............................................................................................................................................................2
1.3 Battery Safety ...............................................................................................................................................................3
1.4 Cable Layout.................................................................................................................................................................4
1.5 Mechanical Safety ........................................................................................................................................................5
2 Overview.........................................................................................................................................7
2.1 Introduction ..................................................................................................................................................................7
2.2 Features.........................................................................................................................................................................7
2.3 Configuration................................................................................................................................................................8
3 Components ...................................................................................................................................9
3.1 Appearance ...................................................................................................................................................................9
3.2 Rectifier ........................................................................................................................................................................9
3.3 SMU ...........................................................................................................................................................................11
3.3.1 SMU01A.................................................................................................................................................................. 11
3.3.2 SMU01B..................................................................................................................................................................15
3.3.3 SMU01C..................................................................................................................................................................18
4 Installation....................................................................................................................................22
4.1 Installing a Subrack ....................................................................................................................................................22
4.2 Installing Components................................................................................................................................................23
4.2.1 Installing an SMU....................................................................................................................................................23
4.2.2 Installing a Rectifier ................................................................................................................................................23
4.3 Installing Cables .........................................................................................................................................................24
4.3.1 Connecting the Ground Cable..................................................................................................................................24
4.3.2 (Optional) Installing Dry Contact Signal Cables .....................................................................................................24
4.3.3 Connecting the Communications Cable...................................................................................................................25
4.3.4 Connecting the DC Load Cable...............................................................................................................................27
4.3.5 Connecting the Battery Cable..................................................................................................................................28
4.3.6 Connecting the 230 VAC Single-Phase of TN 400 V Net or TT 400 V Net Input Power Cable ............................28
4.3.7 Connecting the Dual-Live of IT 230 V Net or TN 208 V Net AC Input Power Cable ............................................29

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5 Verifying the Installation..........................................................................................................30
5.1 Checking Hardware Installation .................................................................................................................................30
5.2 Checking Electrical Connections................................................................................................................................30
5.3 Checking Cable Installation........................................................................................................................................30
6 Commissioning............................................................................................................................31
6.1 Connecting the AC Power Supply ..............................................................................................................................31
6.2 Setting the Display Language.....................................................................................................................................32
6.3 Setting the Date and Time...........................................................................................................................................32
6.3.1 SMU01A..................................................................................................................................................................32
6.3.2 SMU01B and SMU01C...........................................................................................................................................32
6.4 Setting System Type ...................................................................................................................................................33
6.5 Setting Battery Parameters..........................................................................................................................................33
6.5.1 SMU01A..................................................................................................................................................................33
6.5.2 SMU01B and SMU01C...........................................................................................................................................33
6.6 (Optional) Setting DC Parameters ..............................................................................................................................34
6.7 (Optional) Setting Hibernation Parameters.................................................................................................................34
6.7.1 SMU01A..................................................................................................................................................................34
6.7.2 SMU01B and SMU01C...........................................................................................................................................35
6.8 (Optional) Setting Alarm Parameters..........................................................................................................................35
6.8.1 SMU01A..................................................................................................................................................................35
6.8.2 SMU01B and SMU01C...........................................................................................................................................36
6.9 (Optional) Setting Communications Parameters.........................................................................................................36
6.9.1 SMU01A..................................................................................................................................................................36
6.10 Connecting the Battery Supply.................................................................................................................................41
7 Maintenance.................................................................................................................................43
7.1 Routine Maintenance..................................................................................................................................................43
7.2 Rectifying Common Faults.........................................................................................................................................44
7.2.1 Mains Failure...........................................................................................................................................................44
7.2.2 AC Over Volt ...........................................................................................................................................................44
7.2.3 AC Under Volt .........................................................................................................................................................44
7.2.4 DC Over Volt ...........................................................................................................................................................45
7.2.5 DC Under Volt .........................................................................................................................................................45
7.2.6 Amb. Over Temp......................................................................................................................................................45
7.2.7 Amb. Under Temp....................................................................................................................................................46
7.2.8 Batt Over Temp........................................................................................................................................................46
7.2.9 Batt Under Temp......................................................................................................................................................47
7.2.10 Batt Chg. Overcur..................................................................................................................................................47
7.2.11 Load Loop Break ...................................................................................................................................................47
7.2.12 Batt Loop Trip........................................................................................................................................................48
7.2.13 Batt Off..................................................................................................................................................................48
7.2.14 Door Alarm............................................................................................................................................................48

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7.2.15 Water Alarm...........................................................................................................................................................49
7.2.16 Smoke Alarm .........................................................................................................................................................49
7.2.17 Rect Fault...............................................................................................................................................................49
7.2.18 Rect Protection.......................................................................................................................................................50
7.2.19 Single Rect Fault....................................................................................................................................................50
7.2.20 Multi-Rect. Fault....................................................................................................................................................50
7.2.21 Rect Comm Fault...................................................................................................................................................51
7.3 Identifying Faults........................................................................................................................................................51
7.3.1 Identifying Rectifier Faults......................................................................................................................................51
7.3.2 Identifying SMU Faults ...........................................................................................................................................52
7.4 Replacing Components...............................................................................................................................................53
7.4.1 Replacing a Rectifier ...............................................................................................................................................53
7.4.2 Replacing an SMU...................................................................................................................................................54
A Technical Specifications ...........................................................................................................56
B Acronyms and Abbreviations ..................................................................................................60

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1 Safety Precautions
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1 Safety Precautions
1.1 General Safety
Ensure that the product is used in an environment that meets the product design
specifications such as the grid power, input voltage, temperature, and humidity. Using
the product in an incompatible environment may cause malfunctions, damage
components, or invalidate the warranty.
Follow the precautions and special safety instructions provided by Huawei when
operating this product. Personnel who plan to install or maintain Huawei equipment must
receive thorough product training, understand all necessary safety precautions, and be
able to correctly perform all operations. Huawei will not be liable for any consequences
that are caused by the violation of general safety regulations and equipment usage safety
standards.
The upstream power distribution box for the cabinet should be equipped with a
protection switch that has the same specifications as or higher specifications than the
input switch of the cabinet.
Comply with local laws and regulations. The safety instructions in this document are
only supplemental to local laws and regulations.
Do not operate the product or handle cables during thunderstorms.
Do not expose the equipment to flammable or explosive gas or smoke. Keep batteries
away from strong infrared radiation, organic solvents, and corrosive gas.
Do not use water to clean the product's internal or external electrical components.
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telecommunication network voltage (TNV) circuits.
Do not place any irrelevant objects on batteries.
Before using the product, remove any conductors such as jewelry or watches.
Use insulated tools for all operations that involve electrical connections.
Bolts should be tightened with a torque wrench and marked using red or blue color.
Installation personnel mark tightened bolts in blue. Quality inspection personnel confirm
if the bolts are tightened and then mark them in red.
Follow specified procedures during installation and maintenance. Do not attempt to alter
the product or deviate from the recommended installation procedures without prior
consent from the manufacturer.
Disconnect theAC power supply before maintaining AC power distribution.

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Measure contact point voltage with a multimeter before handling a conductor surface or
terminal. Ensure that the contact point has no voltage or the voltage is within the
specified range.
When installing or removing power cables, ensure that the corresponding circuits are
disconnected to prevent electric arcs or sparks.
IfAC input power cables need to be routed from the top, bend the cables in a U shape
outside the cabinet and then route them into the cabinet.
Performing maintenance or replacing components may interrupt power to the loads if
batteries are not connected or the battery reserve is insufficient. Ensure that the switches
for primary loads are in the ON position and do not turn off the battery switch and the
AC input switch at the same time.
Cables stored at subzero temperatures must be stored at room temperature for at least 24
hours before they are laid out.
Perform routine maintenance as described in this manual; replace faulty components at
the earliest.
After maintenance is completed, lock cabinet doors and seal cable holes to prevent
rodents from entering the cabinet.
1.2 Electrical Safety
Grounding
When installing a device, install the ground cable first. When uninstalling a device,
remove the ground cable last.
Before operating a device, ensure that the device is properly grounded. Ensure that the
ground cable is installed securely (the ground resistance should be less than 0.1 ohm).
Inappropriate grounding may cause device damage and personal injury.
AC and DC Power
The power system is powered by high-voltage power sources. Direct or indirect contact
(through damp objects) with high-voltage power sources may result in serious injury or
death.
Non-standard and improper operations may result in fire or electric shocks.
Before making electrical connections, turn off the protection switch on the upstream
device to cut the power supply.
Before connecting theAC power supply, ensure that electrical connections are complete.
Before connecting cables to loads or battery cables, check cable and terminal polarities
to prevent reverse connections.

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ESD
To prevent electrostatic-sensitive components from being damaged by static from human
bodies, wear a grounded electrostatic discharge (ESD) wrist strap or ESD gloves when
touching circuit boards.
When holding a board, hold its edge without touching any components, especially chips.
Package boards with ESD packaging materials before storing or transporting them.
Liquid Prevention
Do not place the product in areas prone to water leakage, such as near air conditioner
vents, ventilation vents, or feeder windows of the equipment room.
Ensure that there is no condensation inside the product or equipment room.
Ensure that no liquid enters the product. Otherwise, short circuits will occur and may
result in serious injury or death.
If any liquid is detected inside the product, immediately disconnect the power supply and
contact the administrator.
1.3 Battery Safety
Before installing, operating, or maintaining the batteries, read the battery manufacturer's
safety instructions. Observe the safety precautions provided in this section, which are
supplemental to the safety instructions provided by the battery manufacturer.
Basic Requirements
Avoid skin contact with battery electrolyte. Before handling batteries, wear goggles,
rubber gloves, and protective clothing.
When handling a battery, ensure that its electrodes always point upward. Do not tilt or
overturn batteries.
Before installing or maintaining batteries, switch off the battery circuit breaker or
remove the battery fuse.
Install batteries in a dry, clean, and ventilated environment that is free from sources of
ignition. Do not expose batteries to sunlight or water.
Ensure that the load-bearing capacity of the floor in the installation area is sufficient.
Install additional supports if required.
Secure battery cables to the torque specified in the battery documentation. Loose
connections will result in excessive voltage drop or cause batteries to burn out in the case
of excessive current.
Ensure that battery cables do not come in contact with water.
Battery Short Circuit

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High short circuit currents or electric shocks can cause equipment damage, personal injury, or
death.
To prevent short circuit or electric shock, disconnect the batteries before performing any
operation or maintenance.
Flammable Gas
Do not use unsealed lead-acid batteries.
Lead-acid batteries emit flammable gas. Therefore, place and secure lead-acid batteries
horizontally to prevent fire or corrosion.
Store lead-acid batteries in a place with good ventilation, and take fire safety precautions.
Battery Leakage
High temperatures may result in battery distortion, damage, and electrolyte overflow.
If the battery temperature is higher than 60°C, battery electrolyte may overflow. If the
electrolyte overflows, wear goggles, rubber gloves, and protective clothing and absorb the
leaking electrolyte using sodium bicarbonate (NaHCO3) or sodium carbonate (Na2CO3). Do
not transport or move batteries if there is an electrolyte leakage.
Battery Overdischarge
After connecting the batteries, remove the battery fuse or turn the battery circuit breaker OFF
and then power on the power system. This prevents battery overdischarge. After the power
system is on, replace the battery fuse or turn the battery circuit breaker ON.
1.4 Cable Layout
When routing cables, ensure that a sufficient distance exists between the cables and the
DC busbar, shunt, and fuse. This prevents damage to the insulation layer of the cables.
Route and bind signal cables and power cables separately.
Ensure that cables meet the VW-1 testing requirements.
Do not route cables behind the air exhaust vents of rectifiers in the cabinet.
Ensure that all cables are securely bound.

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1.5 Mechanical Safety
Hoisting Devices
Do not walk under hoisted objects.
Only trained and qualified personnel should perform hoisting operations.
Check that all hoisting tools are available and in good condition.
Before hoisting objects, ensure that hoisting tools are firmly fixed onto a load-bearing
object or wall.
Ensure that the angle formed by each hoisting cable is less than 90 degrees.
If metal hoisting cables are used, place protective pads between the cables and the
cabinet to prevent scratches to the cabinet surface.
Figure 1-1 Hoisting heavy objects
Drilling Holes
Do not drill holes into a cabinet without permission. Incorrect drilling operations may affect
the electromagnetic shielding of the cabinet and damage cables inside. Metal shavings from
drilling may short-circuit boards inside the cabinet.

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Before drilling holes into a cabinet, wear goggles and protective gloves. Remove cables
from inside the cabinet.
After drilling, clean up any metal shavings that have accumulated inside or outside the
cabinet.
Moving Heavy Objects
Only trained personnel are allowed to move heavy objects.
Wear protective gloves and shoes before moving heavy objects.
Be cautious to prevent injury when moving heavy objects.
At least two people are required to move heavy objects.
When you transport cabinets, ensure that there is no excessive tilt and no sudden jolt.
The maximum allowed tilt angle when loading and unloading a cabinet is 15 degrees.
Secure the cabinet to a pallet truck before you transport it.
When you move a cabinet, ensure that it does not bump into other objects or fall down.
Figure 1-2 Transportation gradient

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2 Overview
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2 Overview
2.1 Introduction
The ETP4830-A1 is a box-type power system that supplies power for -48 V DC
communications equipment. It uses 15A rectifiers and provides a maximum output current of
30 A.
2.2 Features
The ETP4830-A1 has the following features:
Supports a wide voltage range of 85 VAC to 300 VAC.
Provides comprehensive battery management.
The SMU01A communicates with Huawei Network Ecosystem (NetEco) and third-party
element management systems (EMSs) over various security protocols, such as the
Simple Network Management Protocol (SNMP) and Hypertext Transfer Protocol Secure
(HTTPS), featuring flexible networking. It provides WebUI and implements remote
unattended management.
The SMU01B connects to the U2000 over Huawei master/slave protocols.
Displays information on a liquid crystal display (LCD) and provides buttons for
operations.
Supports electronic labels.
Rectifiers and the site monitoring unit (SMU) are hot-swappable.
Allows high-efficiency and standard-efficiency rectifiers with the same capacity to
coexist.
The rectifier power factor is 0.99.

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2.3 Configuration
Table 2-1 ETP4830-A1 configuration
Item
Configuration
PDU
AC input
230 V AC single-phase three-wire (L, N), compatible with
230 V AC dual-live-wire (L, L)
DC power
distribution
Battery fuse
One 20 A
Load fuse
Two 20 A
SMU
The following SMUs are supported:
One SMU01A
One SMU01B
One SMU01C
Rectifier
The following rectifiers are supported:
One to two R4815G1s
One to two R4815N1s
NOTE
The R4815G1 and R4815N1 can be installed together.

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3 Components
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3 Components
3.1 Appearance
Figure 3-1 Appearance
(1) Ground screw
(2) AC input terminals
(behind the cover)
(3) Space for the SMU
(4) Space for rectifiers
(5) Battery fuse
(6) DC output terminals
(7) Load fuses
(8) Battery wiring terminal
Do not mix up the slots for installing the SMU and rectifier. Otherwise, the SMU and rectifier
may be damaged.
3.2 Rectifier
Rectifiers convert AC input into stable DC output.

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Figure 3-2 Rectifier
(1) Run indicator
(2) Alarm indicator
(3) Fault indicator
(4) Locking latch
(5) Handle
Table 3-1 Rectifier indicator description
Indicator
Color
Status
Description
Run indicator
Green
Steady on
The rectifier has an AC power input.
Off
The rectifier has no AC power input.
The rectifier is faulty.
Blinking
at 0.5 Hz
The rectifier is being queried.
Blinking
at 4 Hz
The rectifier is loading an application
program.
Alarm indicator
Yellow
Off
No alarm has been generated.
Steady on
The rectifier has generated an alarm for
power limiting due to ambient
overtemperature.
The rectifier has generated an alarm for
shutdown due to ambient overtemperature
or undertemperature.
The rectifier is protecting itself against AC
input overvoltage or undervoltage.
The rectifier is hibernating.
Blinking
at 0.5 Hz
The communication between the rectifier and
the SMU has been interrupted.
Fault indicator
Red
Off
The rectifier is running properly.
Steady on
The rectifier has been locked out due to

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Indicator
Color
Status
Description
output overvoltage.
The rectifier has no output due to an internal
fault.
3.3 SMU
3.3.1 SMU01A
Appearance
Figure 3-3 SMU01Aappearance

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Panel
Figure 3-4 SMU01Apanel
(1) Run indicator
(2) Alarm indicator
(3) DB50 port
(4) USB port (reserved)
(5) Handle
(6) RS485/RS232 port
(7) COM port
(8) Locking latch
(9) Buttons
(10) LCD
Indicators
Table 3-2 Indicator description
Name
Color
Status
Description
Running status
indicator
Green
Off
The SMU01A is
faulty or has no DC
input.
Blinking at 0.5 Hz
The SMU01A runs
properly and
communicates with
the host properly.
Blinking at 4 Hz
The SMU01A runs
properly but does
not communicate
with the host
properly.
Alarm indicator
Red
Off
No critical or major
alarm is generated.
Steady on
A critical or major
alarm is generated.