huawei optix ptn 950 installation guide(v100r005)

OptiX PTN 950 Packet Transport Platform of PTNSeriesV100R005C01

Installation Guide

Issue 02

Date 2013-08-10

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2013. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent 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. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase 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 representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 02 (2013-08-10) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

i

http://www.huawei.commailto:[email protected]

About This Document

Related VersionsThe following table lists the product versions related to this document.

Product Name Version

OptiX PTN 950 V100R005C01

Huawei iManager U2000 V100R009C00

Intended AudienceThis document describes the installation process of the OptiX PTN 950 in terms of preparationsfor installation and system installation.

This document describes the installation flow and method.

This document is intended for:

l Installation and commissioning engineers

Symbol ConventionsThe symbols that may be found in this document are defined as follows.

Symbol Description

DANGERDANGER indicates a hazard with a high level or mediumlevel of risk which, if not avoided, could result in death orserious injury.

WARNINGWARNING indicates a hazard with a low level of risk which,if not avoided, could result in minor or moderate injury.

CAUTIONCAUTION indicates a potentially hazardous situation that,if not avoided, could result in equipment damage, data loss,performance deterioration, or unanticipated results.

OptiX PTN 950 Packet Transport Platform of PTN SeriesInstallation Guide About This Document


ii

Symbol Description

TIP TIP indicates a tip that may help you solve a problem or savetime.

NOTE NOTE provides additional information to emphasize orsupplement important points of the main text.

GUI ConventionsThe GUI conventions that may be found in this document are defined as follows.

Convention Description

Boldface Buttons, menus, parameters, tabs, window, and dialog titlesare in boldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">"signs. For example, choose File > Create > Folder.

Change HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.

Changes in Issue 02 (2013-08-10) Based on Product Version V100R005C01Compared with issue 01 of the V100R005C01 version, this issue has the following updates:

Update Description

Whole manual Known bugs are fixed.


Update Description





iii

Update Description


Changes in Issue 01 (2012-10-30) Based on Product Version V100R005C00This document of the V100R005C00 version is the first release.



iv

Contents

About This Document.....................................................................................................................ii

1 Compliance and Safety.................................................................................................................11.1 Warning and Safety Symbols.........................................................................................................................................21.2 Safety Precautions for Using the Equipment..................................................................................................................21.2.1 Safety Symbols............................................................................................................................................................31.2.2 Electrical Safety...........................................................................................................................................................31.2.3 Battery.........................................................................................................................................................................71.2.4 Laser and Fibers...........................................................................................................................................................91.2.5 High-Altitude Operations............................................................................................................................................91.2.6 Installing and Removing Boards...............................................................................................................................101.2.7 Miscellaneous............................................................................................................................................................10

2 Equipment Installation Process................................................................................................12

3 Installation Preparation..............................................................................................................143.1 Requirements for Running Environment A and Installation Planning.........................................................................183.1.1 Equipment Room Environment Requirements..........................................................................................................183.1.2 Layout of Equipment Room......................................................................................................................................193.1.3 Construction of the Equipment Room.......................................................................................................................193.1.4 Cleanliness of the Equipment Room.........................................................................................................................213.1.5 Requirements for Temperature and Humidity inside the Equipment Room.............................................................223.1.6 Corrosive Gas Control Requirements........................................................................................................................233.1.7 Electromagnetic Requirements..................................................................................................................................243.1.8 ESD Protection..........................................................................................................................................................243.1.9 Surge protection and Grounding Requirements........................................................................................................253.1.10 Power Supply...........................................................................................................................................................273.1.11 Lighting in the Equipment Room............................................................................................................................303.1.12 Protection System....................................................................................................................................................303.2 Requirements for Running Environment B and Installation Planning.........................................................................333.2.1 Requirements for Selecting a Site for Equipment.....................................................................................................333.2.2 Dust Resistance and Water Resistance......................................................................................................................343.2.3 Corrosion Protection..................................................................................................................................................353.2.4 Principle for Heat Dissipation of a Network Cabinet................................................................................................353.2.5 Cooperation Between Air Ducts................................................................................................................................38

OptiX PTN 950 Packet Transport Platform of PTN SeriesInstallation Guide Contents


v

3.2.6 Cabling Space............................................................................................................................................................403.2.7 Power Supply for Equipment....................................................................................................................................403.2.8 General Requirements on Surge protection and Grounding......................................................................................403.2.9 Grounding Without Dedicated Grounding Environment..........................................................................................413.2.10 Selection of the Network Cabinet............................................................................................................................433.2.11 Hardware Installation Problems..............................................................................................................................453.3 Requirements for Running Environment C and Installation Planning.........................................................................473.3.1 Selection of the Outdoor Cabinet..............................................................................................................................48

4 Equipment Installation Guidelines (IMB Network Cabinet).............................................504.1 Tools and Instruments..................................................................................................................................................524.2 Overview of Devices....................................................................................................................................................534.3 Dimensions and Installation Clearance Requirements.................................................................................................564.4 Installation Process.......................................................................................................................................................594.5 Installing the IMB on the Wall.....................................................................................................................................604.5.1 Installation Options....................................................................................................................................................604.5.2 Installing the IMB on the Wall (Side-Mounted).......................................................................................................614.5.3 Installing the IMB on the Wall (Back-Mounted)......................................................................................................664.6 Installing Devices in the IMB.......................................................................................................................................704.6.1 Installing the Chassis.................................................................................................................................................704.6.2 Installing the Power Device.......................................................................................................................................714.7 Installing and Routing Cables.......................................................................................................................................724.7.1 Cable Installation Process..........................................................................................................................................724.7.2 Expected Effect of Cables Installation......................................................................................................................734.8 Hardware Installation Checklist...................................................................................................................................774.9 Power-On Inspection....................................................................................................................................................784.10 Installing the Cover Plate for the IMB.......................................................................................................................78

5 General Installation Guidelines...............................................................................................805.1 Unpacking Inspection...................................................................................................................................................825.1.1 Unpacking the Chassis...............................................................................................................................................825.1.2 Unpacking Boards.....................................................................................................................................................835.1.3 Requirements of Inspection.......................................................................................................................................865.2 Installing chassis...........................................................................................................................................................865.2.1 Overview of Cabinets and Mounting Ears................................................................................................................865.2.2 Installing the Chassis in a Cabinet.............................................................................................................................875.3 Installing Boards...........................................................................................................................................................875.3.1 Inserting a Board.......................................................................................................................................................875.3.2 Removing a Board.....................................................................................................................................................895.3.3 Installing a Filler Panel..............................................................................................................................................905.4 Checking Tail Fiber Connection...................................................................................................................................905.5 Grounding Specifications.............................................................................................................................................925.5.1 General Grounding Specifications.............................................................................................................................925.5.2 Grounding Specifications for the Building................................................................................................................92



vi

5.5.3 Equipment Grounding Specifications........................................................................................................................935.5.4 Grounding Specifications for Office Power..............................................................................................................935.5.5 Grounding Specifications for Signal Cables.............................................................................................................945.5.6 Specifications for Managing Ground Cables.............................................................................................................955.6 Engineering Labels.......................................................................................................................................................955.6.1 Introduction to Labels................................................................................................................................................965.6.1.1 Material...................................................................................................................................................................965.6.1.2 Type and Shape......................................................................................................................................................965.6.2 Information Carried on Labels..................................................................................................................................975.6.2.1 For Power Cables....................................................................................................................................................975.6.2.2 For Signal Cables....................................................................................................................................................985.6.2.3 Remarks..................................................................................................................................................................985.6.3 Filling Information on Labels....................................................................................................................................985.6.3.1 Printing Labels........................................................................................................................................................995.6.3.2 Writing Labels......................................................................................................................................................1015.6.4 Affixing Labels........................................................................................................................................................1025.6.4.1 Attaching the Label to the Signal Cable...............................................................................................................1025.6.4.2 Attaching the Label to the Power Cable...............................................................................................................1035.6.5 Frequently Used Engineering Labels......................................................................................................................1035.7 The Requirements of Cabling and Bundling..............................................................................................................1045.7.1 The Requirements of Cabling..................................................................................................................................1045.7.2 The Requirements of Bundling................................................................................................................................1045.8 Binding Strap..............................................................................................................................................................1055.8.1 Architecture and cutting of binding strap................................................................................................................1055.8.1.1 Architecture..........................................................................................................................................................1065.8.1.2 Cutting..................................................................................................................................................................1065.8.2 Bundling the Binding Strap.....................................................................................................................................1075.8.2.1 Procedures for Bundling the Binding Strap..........................................................................................................1075.8.2.2 Expected Result....................................................................................................................................................1095.8.2.3 Precautions............................................................................................................................................................1095.9 Assembling and Testing the Cable Connector...........................................................................................................1105.9.1 Assembling and Testing the E1 Coaxial Cable Connector......................................................................................1105.9.1.1 Assembling the Straight BNC Male Connector with the Coaxial Cable..............................................................1105.9.1.2 Assembling the L9-M Male Connector with the Coaxial Cable..........................................................................1145.9.1.3 Assembling the Straight SMB Female Connector with the Coaxial Cable..........................................................1185.9.1.4 Testing Cable Connectivity..................................................................................................................................1225.9.2 Assembling the RJ45 Connector with the Ethernet Cable and Testing the Connectivity.......................................1235.9.2.1 Connection Relations of Network Cables............................................................................................................1235.9.2.2 Assembling the RJ45 Connector with the Shielded Ethernet Cable....................................................................1275.9.2.3 Assembling the RJ45 Connector with the Non-Shielded Ethernet Cable ...........................................................1325.9.2.4 Checking the Assembled Cable Connector..........................................................................................................1345.9.2.5 Testing Cable Connectivity..................................................................................................................................137



vii

5.9.3 Assembling Power Cables.......................................................................................................................................1395.9.3.1 Assembling OT Terminals and Power Cables......................................................................................................1395.9.3.2 Assembling Cord End Terminals and Power Cables............................................................................................142

A Glossary......................................................................................................................................146



viii

1 Compliance and SafetyAbout This Chapter

This section describes the safety precautions that should be taken during operating andmaintaining the equipment or using U2000 NMS (Network Management System). The safetyprecautions cover the safety rules related to the human beings and equipment. Adhere to thesesafety rules to avoid injury to the human body and damage to the equipment.

1.1 Warning and Safety SymbolsBefore using the equipment, carefully note the warning and safety symbols on the equipment.Perform operations on the equipment according to the indications of these symbols. This sectiondescribes the warning and safety symbols on the equipment and the indications of these symbols.

1.2 Safety Precautions for Using the EquipmentBefore using the equipment, read the safety precautions carefully. During the operation of theequipment, follow the safety precautions to ensure the safety of human beings and the equipment.

OptiX PTN 950 Packet Transport Platform of PTN SeriesInstallation Guide 1 Compliance and Safety


1

1.1 Warning and Safety SymbolsBefore using the equipment, carefully note the warning and safety symbols on the equipment.Perform operations on the equipment according to the indications of these symbols. This sectiondescribes the warning and safety symbols on the equipment and the indications of these symbols.

Table 1-1 lists the warning and safety symbols on the equipment, and the indications of thesesymbols.

Table 1-1 Warning and safety symbols

Symbol Indication

This symbol is for anti-static protection.A notice with this symbol indicates that youshould wear an anti-static wrist strip orgloves when you touch a board. Otherwise,damage might be caused to the board.

CLASS 1LASER

PRODUCT

This symbol is for laser class.A notice with this symbol indicates the classof the laser. Avoid direct exposure to thelaser beams launched from the opticalinterface. Otherwise, damage might becaused to the eye or skin.

This symbol is for chassis grounding.A notice with this symbol indicates wherethe equipment is grounded.

This symbol is a fan safety warning.A notice with this symbol indicates that thefan leaves should not be touched when thefan is rotating.

!

This symbol is for multi-channel powersupply.A notice with this symbol indicates that themultiple channels of power supply areavailable.

1.2 Safety Precautions for Using the EquipmentBefore using the equipment, read the safety precautions carefully. During the operation of theequipment, follow the safety precautions to ensure the safety of human beings and the equipment.



2

CAUTIONl Before performing any operation on the equipment, read the operation instructions and

precautions carefully; during the operation, follow the equipment-specific precautions andoperation instructions provided by Huawei strictly to minimize the occurrence of accidents.

l When performing any operation on the equipment, follow the safety regulations of the localareas. The safety precautions described in the manual are only supplements to the local safetyregulations.

l The texts introduced by the word "Caution", "Warning", or "Danger" in each manual do notcover all the safety precautions that must be followed. They are only supplements to thesafety precautions for operations.

l The engineers that are responsible for installing and maintaining Huawei equipment must beequipped with the general knowledge of safety operation. Therefore, they must havecompleted relevant training to familiarize themselves with the proper operation methods andsafety precautions. In addition, they must possess relevant working certificates.

1.2.1 Safety SymbolsSafety symbols indicate the safety instructions that must be followed during the installation ormaintenance.

Table 1-2 lists the levels and meanings of the safety symbols.

Table 1-2 Levels and meanings of the safety symbols

Levels of the safety symbols Meaning

DANGER indicates a hazard with a highlevel or medium level of risk which, if notavoided, could result in death or seriousinjury.

WARNING indicates a hazard with a lowlevel of risk which, if not avoided, couldresult in minor or moderate injury.

CAUTION indicates a potentially hazardoussituation that, if not avoided, could result inequipment damage, data loss, performancedeterioration, or unanticipated results.

1.2.2 Electrical SafetyWhen installing or maintaining Huawei network equipment, follow relevant electrical safetyprecautions to ensure the safety of human beings and the equipment.



3

High Voltage

DANGERThe high voltage power supply supplies power to the device so that it can operate. Direct orindirect contact (through damp objects) with high voltage and AC mains supply may result in afatal accident.

l When installing the AC power supply facility, comply with the local safety regulations.The personnel who install the AC facility must be qualified for performing high voltageand AC operations.

l Do not wear articles that conduct electricity, such as watches, chains, bracelets and ringswhen performing high voltage operations.

l Switch off the power supply immediately, if you find water in the rack or if the rack isdamp.

l Make sure that the device is kept away from water when being operated in a dampenvironment.

WARNINGNon-standard and improper high voltage operations can result in fire and electric shock.Therefore, you must abide by the local rules and regulations when bridging and wiring AC cablesthrough a certain area. The personnel who perform high voltage operations must be qualifiedfor performing high voltage and AC operations.

Power Cable

WARNINGDo not install or remove a live line. Transient contact between the core of the power cable andthe conductor may generate electric arc or spark, which can cause fire or injury to the eye.

l Before bringing the power cable into the power distribution frame (PDF), bind the bareparts of the power cable with insulating tapes.

l Before installing or removing the power cable, turn off the power switch.l Before connecting the power cable, make sure that the power cable and label conform to

the requirements of the actual installation.

Short CircuitThe short circuit makes the components fail to work normally and even causes damage to theentire equipment. During the component replacement, avoid the short circuit that may occurwhen you do not operate the tools or boards properly.



4

Use tools such as a screwdriver according to the regulations. Do not place any tools on thehoneycomb plate of the equipment.

CAUTIONPrevent any screws from falling into the equipment and causing short circuit.

Tools

WARNINGUse special tools when performing high voltage and AC operations.

Drilling Holes

WARNINGDo not drill on the rack without permission. Drilling on the racks does not conform to the relatedrequirements and may damage the wires and cables inside the rack. If the metal shavings fromthe drilling enter the rack, it may result in short-circuit of the circuit boards. It may also damagethe Electromagnetic Compatibility (EMC) performance of the cabinet.

l Before drilling a hole on the rack, wear insulation gloves, and then remove the cables insidethe rack away.

l During the drilling, ensure that your eyes are completely protected. The hot metal shavingsmay cause injury to your eyes.

l Ensure that the metal shavings do not enter the rack.l Nonstandard drilling may damage the electromagnetic shielding performance of the rack.l After drilling, clean the metal shavings.

Thunderstorm

DANGERHigh voltage and AC operations, or operations on a steel tower and a mast when there is athunderstorm are prohibited.

When there is a thunderstorm, the electromagnetic field generated in the thunderstorm area maycause damage to electronic components. To prevent the device from being damaged by lightning,use proper grounding.



5

Electrostatic DischargeThe electronic components on the board can be damaged by the electrostatic discharge. Thus,when replacing the board, make sure that the equipment is properly grounded and take propermeasures to protect the components against electrostatic discharge. For example, wear the ESDwrist strap during the operation.

CAUTIONThe static electricity generated by the human body can damage the electrostatic sensitivecomponents on the circuit board, such as the large-scale integrated circuit (LIC).

Take the following measures to protect the components against electrostatic discharge:

l Make sure that the equipment is properly grounded according to the equipment groundingrequirement.

l Before touching the equipment, board or integrated circuit (IC) chip, you must wear theESD wrist strap to prevent the electrostatic discharge on the human body from damagingthe static-sensitive components, and ensure that the other end of the strap is properlygrounded. Figure 1-1 shows how to wear the ESD wrist strap.

Figure 1-1 Wearing the ESD wrist strap

CAUTIONMake sure that the metallic portion of the ESD wrist strap is in contact with the skin andthe other end of the ESD wrist strap is properly connected to the ESD jack.

NOTE

If the ESD wrist strap is unavailable, wear ESD gloves.



6

l When correctly wearing an ESD wrist strap, make sure that the resistance value of the ESDwrist strap range from 0.75 Mohms to 10 Mohms. The validity period of the ESD wriststrap is two years. When the resistance of the ESD wrist strap fails to meet the requirement,you need replace the ESD wrist strap.

l Avoid touching the boards with clothing because this may generate static electricity thatcannot be defended by the ESD wrist strap.

l Use the ESD pad when replacing the board. Wear the ESD wrist strap properly and useESD tweezers or extraction tools to take, remove, or insert chips. Do not touch chips,circuits, or pins with bare hands.

l Keep boards and other static-sensitive parts that are not installed in ESD bags. Place somedesiccant inside the bag to keep the board dry.

l Place the boards or parts that are temporarily removed on the ESD pad or other ESDmaterials. Do not use non-ESD materials such as white foams, common plastic bags, orpaper bags to pack boards. Keep these materials away from boards.

l Wear an ESD wrist strap when operating the ports of boards because they are also static-sensitive. Discharge the static electricity of cables and protective sleeves before connectingthem to the ports.

l Reserve some board package materials, such as vacuum forming box and ESD bags in theequipment room for future use.

1.2.3 BatteryWhen installing or maintaining the battery, follow relevant safety precautions for the battery toensure the safety of human beings and the equipment.

DANGERBefore handling the battery, read the safety precautions and the procedure for connecting thebatteries.

Electrolyte overflow can cause potential damage to the device. It can lead to the corrosion ofmetal parts and circuit boards, and damage the device and cause short-circuit of the circuit boards.

General OperationsBefore installing and maintaining the battery, pay attention to the following:

l Do not wear metallic articles, such as a watch, hand chain, bracelet and ring.l Use special insulation tools.l Use eye protection devices.l Wear rubber gloves. Wear an apron in case of electrolyte overflow.l Always keep the electrode upright when handling the battery. Do not place the battery

upside down or tilt it.



7

Short Circuit

CAUTIONShort-circuit in a battery may cause injury. Though the voltage of a battery is low, high transientcurrent generated by a short-circuit releases a large amount of power.

Keep metal objects that can cause battery short-circuit away from the batteries. If metal objectshave to be used, first disconnect the batteries in use and then perform any operations.

Harmful Gas

CAUTIONDo not use unsealed lead-acid battery, because the gas emitted from the battery may result ininflammation or device corrosion. Place the battery horizontally and then fix it properly.

The battery in use may emit flammable gas. Therefore, store the battery in a place with goodventilation, and take precautions against fire.

High Temperature

CAUTIONHigh temperature may result in distortion, damage and electrolyte overflow in the battery.

When the temperature of the battery exceeds 60 centigrade, check whether there is acid overflow.If yes, clean the acid immediately.

Acid Liquid

CAUTIONIn the case of acid overflow, absorb and neutralize the liquid immediately.

When moving or replacing a leaky battery, observe the damage caused by the acid. When acidspill is found, use the following materials to absorb and neutralize it.

l Sodium bicarbonate (baking soda) : NaHCO3l Sodium carbonate (pure alkali) : Na2CO3

When using antacids, strictly follow the guide provided by the battery supplier.



8

1.2.4 Laser and FibersClean the fiber connector correctly. To avoid injury caused by the laser beam to the human body,replace and connect fibers safely.

Laser

DANGERThe laser beam launched by the optical interface board or by a fiber can cause damage to youreyes! Do not stare into the fiber connector without wearing protective glasses during theinstallation or maintenance of the fiber.

Cleaning Fiber Connectors

Clean fiber connectors with special cleaning tools and materials. The common tools andmaterials used for cleaning fiber connectors are as follows:

l Special cleaning solvent (Isoamylol is preferred, propyl alcohol is the next, alcohol andformalin is forbidden.)

l Nonwoven lens tissue

l Special compressed gas

l Cotton label (medical cotton or long fiber cotton)

l Special cleaning roll, used with cleaning solvent listed in the first item

l Special magnifier for optical connectors

Replacing Fibers

When replacing a fiber, cap the fiber connector of the unused fiber with the protective cap.

Connecting Fibers

Take the following precautions when connecting fibers.

l If the optical power is excessively high, an optical attenuator should be used to protect theoptical interfaces from being damaged.

l When the fiber connector does not match the optical interface, use an adapter to connectthe connector to the optical interface. In addition, ensure that the optical power meets thespecification requirement of the optical interface after the adapter is used because the useof an adapter introduces certain attenuation.

1.2.5 High-Altitude OperationsWhen doing High-Altitude Operations, follow relevant safety precautions for High-AltitudeOperations to ensure the safety of human beings and the equipment.



9

WARNINGWhen working at a height, prevent objects from falling down.

When working at a height, comply with the following requirements:

l Only trained personnel can work at a height.l The operating machines and tools should be carried and handled safely to prevent them

from falling.l Safety measures should be taken such as wearing a helmet and a safety belt.l In cold areas, wear warm clothes before performing any high-altitude operation.l Appliances used for lifting objects must be checked and ensured to be intact before

performing any high-altitude operation.

1.2.6 Installing and Removing BoardsRemoving the in-service board may result in service interruption. Thus, remove or insert a boardduring off-peak hours.

DANGERDo not remove the power cable and the PIU board when the power is on.

CAUTIONl Before installing or removing a board, wear an ESD glove or ESD wrist strap.l When holding a board, never touch the circuits, components, cable connectors, and cabling

trough on the board.l Before inserting a board, make sure that the protective tube on the backplane has been taken

off.l Before inserting a board, make sure that no fiber or cable is connected to the board.l Insert a board gently to prevent bending of the pins on the backplane.l Insert a board along the guide rail of each slot to prevent the components on the board from

touching each other and causing short circuit.l The interval for removing and inserting a board should be longer than 10 seconds.

After a board is inserted into the equipment, it takes several minutes for the board to enter thenormal running state after the startup.

1.2.7 MiscellaneousWhen installing or maintaining Huawei network equipment, you also need to follow the safetyprecautions for lifting heavy objects, operating sharp-cornered objects and binding signal cablesto ensure the safety of human beings and the equipment.



10

Lifting Heavy Objects

WARNINGDo not stand or walk under heavy objects when they are being lifted.

Operating Sharp-Cornered Objects

WARNINGWhen carrying the device, wear protection gloves to prevent injuries that can be caused by sharpobjects.

Binding Signal Cables

CAUTIONBundle the signal cables separately from the strong current cables or high voltage cables. Thespace between two adjacent ties must be at least 30 mm.



11

2 Equipment Installation ProcessThis section describes the general equipment installation process. Before installing equipment,you need to determine the installation mode according to installation environment. Afterunpacking and inspecting the equipment, you need to install the chassis, boards, fibers, andcables in sequence, and then check the installation result. After determining that the installationis correct, you can power on the equipment and then check fiber connections.

Table 2-1 lists the general installation process.

Table 2-1 Equipment installation process

Installation Process Description

Installation preparation

Before installation, plan installation space, buildtelecommunications rooms, and determine the installationmode according to requirements of the equipment for runningenvironment. This ensures that the equipment can be properlyinstalled and commissioned, and then can run stably. Fordetails on the requirements of the equipment for runningenvironment, see 3 Installation Preparation.

Unpacking and inspectingequipment

When a project starts, the project supervisor needs to work withthe customer to unpack and inspect the delivered equipment.For details, see 5.1 Unpacking Inspection.

Installing chassis The installation modes for chassis vary with installationenvironment.

Installing boards Generally, chassis for delivery are installed with boards. Ifboards are delivered separately, see 5.3 Installing Boards.

Installing fibers and cables The installation modes for fibers and cables in chassis varywith installation environment.

Testing E1 cableconnections After installing E1 cables, test the E1 cable connections.

Checking installation After hardware installation is complete, check the installationto ensure that the equipment can run stably.

OptiX PTN 950 Packet Transport Platform of PTN SeriesInstallation Guide 2 Equipment Installation Process


12

Installation Process Description

Powering on the equipment

Before powering on the equipment, check the external powersupply to ensure proper voltage and fuse capacity. Afterpowering on the equipment, observe the indicators todetermine whether the equipment runs properly.

Checking fiber connections

During installation of fiber jumpers, the fiber jumpers may beincorrectly connected or attenuate much optical power. Toavoid impacts on services, check fiber jumper connectionsafter the fiber jumpers are routed from optical interfaces to theoptical distribution frame (ODF). For details, see 5.4 CheckingTail Fiber Connection.

NOTE

When the equipment is installed in an indoor cabinet, a network cabinet, or an outdoor cabinet, the referencesfor each step in the preceding installation process vary. The references are as follows:

l When installing the equipment in a 19-inch cabinet, an N63E cabinet, or a T63 cabinet, see the OptiXPTN 950 Quick Installation Guide.

l When installing the equipment in an IMB network cabinet, see 4 Equipment Installation Guidelines (IMBNetwork Cabinet).

When installing OptiX PTN 950 NEs in a 300-mm-deep indoor cabinet, note that a maximum of five OptiXPTN 950 NEs can be installed in the cabinet, with a distance of not smaller than 300 mm between adjacent NEs.In addition, the total power consumption of the cabinet must be lower than 1000 W.

When installing both OptiX PTN 950 NEs and OptiX PTN 3900 NEs in a 300-mm-deep indoor cabinet, notethat only one OptiX PTN 950 NE and one OptiX PTN 3900 NE can be installed in the cabinet, with a distanceof not smaller than 560 mm between the two NEs.

OptiX PTN 950 Packet Transport Platform of PTN SeriesInstallation Guide 2 Equipment Installation Process


13

3 Installation PreparationAbout This Chapter

Before installation, plan installation space, build telecommunications rooms, and determine theinstallation mode according to requirements of the equipment for running environment. Thisensures that the equipment can be properly installed and commissioned, and then can run stably.The equipment can run in various environment, and the running environment can be classifiedinto three types, that is, running environment A, B, and C. This section describes the three typesof environment.

For the requirements for running environment, see Operation Environment.

In environment A, B, and C, installation modes are different. For details on how to chooseequipment installation modes and references, see Table 3-1.

Table 3-1 Running environment and installation modes

Running

Environment

Description Example Installation Mode Reference

Runningenvironment A

Indoorenvironmentwheretemperatureand humidityare undercontrol

Standard centraltelecommunicationsroom or communicationshelter

Theequipmentis installedin a 19-inchcabinet, anN63Ecabinet, ora T63cabinet.

For details on theinstallation mode,see the OptiX PTN950 QuickInstallation Guide.

Runningenvironment B

Indoorenvironmentwheretemperature

Wall in the corridor

Theequipmentcan beinstalled in

If a Huawei IMBnetwork cabinet isused, see thisdocument and 3.2.10

OptiX PTN 950 Packet Transport Platform of PTN SeriesInstallation Guide 3 Installation Preparation


14

Running

Environment


and humidityare partiallyunder control orwithout control,or commonoutdoorenvironmentwith a simpleshelter such asan awning, orcommonoutdoorenvironmentwhere humidityreaches 100%occasionally

Room wheretemperature is not undercontrol such as an attic ina residential building

a standardnetworkcabinet.

Selection of theNetwork Cabinetfor details on theinstallation mode.

Simple telecommunica-tions room,telecommunicationsroom reconstructed froma cottage, ortelecommunicationsroom reconstructed froma common residentialbuilding(In such atelecommunicationsroom, air conditionersand mains are available,but sealing conditionsare poor.)

Public area inside aresidential building suchas a stairwell or cleaningtool room



15

Running

Environment


Runningenvironment C

l Outdoorarea close toa pollutionsource

l Environment with onlysimpleshields suchas awnings

l Place on thesea

NOTEAn area close toa pollutionsource refers toan area wheresaline watersuch as the seaor a salina iswithin 3.7 kmaway from it,where a heavypollution sourcesuch as ametallurgicalplant, coalmine, orthermal powerplant is within 3km away fromit, where amediumpollution sourcesuch as achemical plant,a rubber plant,or anelectroplatingfactory is within2 km away fromit, or where alight pollutionsource such as afood factory,leather factory,or heatingboiler is within1 km away fromit.

Outdoor or an attic in aresidential building

APM30Hcabinet

For details on theinstallation mode,see 3.3Requirements forRunningEnvironment C andInstallationPlanning.

3.1 Requirements for Running Environment A and Installation Planning



16

This section describes the requirements for running environment A (environment under fullcontrol) and requirements for installation planning.

3.2 Requirements for Running Environment B and Installation PlanningThis section describes the requirements for equipment location selection, dustproof andwaterproof, surge protection and grounding, heat dissipation, cooperation between air ducts,power supply of equipment, cabling space, selection of network cabinets and outdoor cabinets,and corrosion protection when equipment is installed in running environment B.

3.3 Requirements for Running Environment C and Installation PlanningIn environment C, you need to install equipment in an APM30H outdoor cabinet. Whenequipment is installed in an APM30H outdoor cabinet, the temperature at the air intake ventson the outdoor cabinet must range from -40 C to 50 C.



17

3.1 Requirements for Running Environment A andInstallation Planning

This section describes the requirements for running environment A (environment under fullcontrol) and requirements for installation planning.

3.1.1 Equipment Room Environment RequirementsThis section describes the operation environment of the optical transmission equipment.

A good operation environment is the key to guarantee safe operation of the OptiX transmissionequipment. Therefore, the equipment room should not be located in any area with hightemperature, heavy dust, poisonous gas, dangerous explosives, low pressure, serious vibrationor loud noises. Moreover, it should be built away from the general step-down electricalsubstations and traction substations. While designing the project, you need to consider thehydrographic, geological, seismic and traffic factors according to the communication networkplanning and communication technology, so as to choose the place that meets the environmentdesign requirement.

The engineering design in terms of construction, structure, heating, ventilation, power supply,lighting and fire fighting should comply with the environment requirements for opticalsynchronous transmission equipment. It should also comply with the international standards andspecifications related to industrial enterprise, environment protection, fire fighting, and humanprotection, as well as the regulations and requirements for constructing and designing buildings.

Site requirements are as follows:

l The site should be kept away from pollution sources. For sources of heavy pollution suchas the smeltery and coal mine, keep a distance of 5 km. For sources of medium pollutionsuch as the chemical, rubber and galvanization industries, keep a distance of 3.7 km. Forsources of light pollution such as food and tanner industries, keep a distance of 2 km. Ifthese sources of pollution cannot be avoided, the equipment room must be in the perennialupwind direction of the pollution sources. In addition, quality equipment room or protectionproduct must be adopted.

l The ventilation port for air exchange of the equipment room must be kept away from theexhaust of city waste pipes, big cesspools and sewage treatment tanks. The equipment roomshould be kept in the positive pressure state lest the corrosive gases enter the equipmentroom and erode components and circuit boards.

l The equipment room should be kept away from the industrial and heating boilers.

l The equipment room is located on the second floor or the higher floor. If this requirementcannot be satisfied, the ground for equipment installation in the equipment room shall beat least 600 mm above the maximum flood level in the local record.

l The equipment room should be kept away from livestock farms. If this requirement cannotbe satisfied, it should be located in the perennial upwind direction of the livestock farms.

l The equipment room should be kept 3.7 km away from the seaside or salt lake. If thisrequirement cannot be satisfied, the equipment room should be airtight with coolingfacilities. In addition, the alkalized soil cannot be used as the construction material.Otherwise, the equipment applicable in atrocious environment must be adopted.



18

l The historical livestock room or the chemical fertilizer warehouse cannot be used as theequipment room.

l The equipment room should be solid enough to withstand wind and downpour.l The equipment room should be kept away from the road or sand field with dusts flying

around. If this requirement cannot be satisfied, the windows and doors of the equipmentroom should be kept away from the sources of pollution.

3.1.2 Layout of Equipment RoomThis section describes the principles of the overall layout of the equipment room.

The communication equipment room houses a complete set of communication transmissionequipment, for example, SPC switching equipment, power supply, and so on. They should bearranged compactly for ease of maintenance and management. Figure 3-1 shows a typical layoutof the equipment room.

Figure 3-1 Layout of the equipment room

Power line

Communication line

Network line

MainDistributionFrame (MDF) room

Service Console Control Room

SPCSwitching

Room

Transmission Room

Diesel Room

Battery Room

Transformer Room

PowerDistribution

Room

The principles for layout of the equipment room are as follows:

l Meet the requirements for wiring and maintaining the communication cable and powercable.

l Avoid line roundabout for convenient maintenance, thus lowering the cable cost, reducingcommunication failures and improving the work efficiency.

l Install the transmission equipment in a separate room close to the MDF room, or near theswitch.

3.1.3 Construction of the Equipment RoomThis section describes the requirements for the construction of the equipment room.

The construction of the equipment room shall meet the requirements listed in Table 3-2.



19

Table 3-2 Construction requirements for the equipment room

Item Requirements

Area The equipment room should be able to house all the devices of theterminal office at least.

Net height Minimum indoor height refers to the net height under the roof beamor under the ventilation pipe. Normally it is no less than 3 m.

Indoor floor The floor of the equipment room should be semi-conductive and notdust-arousing. Generally, ESD raised floor is required. The floorboards should be laid tightly and firmly. For each square meter offloor space, the horizontal tolerance should not be greater than 2 mm.If no raised floor is available, electrostatic conductive floor materialwith a volume resistivity ranging 1.0x107 ohms - 1.0x1010 ohmsshould be laid. The electrostatic conductive floor material or the ESDraised floor should be grounded well. It can be connected to thegrounding device through a current limiting resistor and a connectionwire. Resistance of the current limiting resistor should be 1megaohm.CAUTION

If thermal insulation cotton is required under the support for the floor, or anESD raised floor is required, do not use the thermal insulation cotton and theESD raised floor containing sulfur to prevent devices from being corroded.

Load-bearingcapacity of floor

>450 kg/m2

Doors and windows Doors are single-leaf, 2 m high and 1 m wide. All doors and windowsshould be sealed with dust-proof rubber strips. Double-layer glass isrecommended for windows.

Wall The wall can be covered with wallpaper or lusterless paint, but notthe paint that is apt to get pulverized or peeled.CAUTION

If organic materials such as soundproof cotton are required, use materials thatdo not contain sulfur.

Indoor ducts Indoor ducts are used for cabling. The inside of the ducts should besmooth and clean. The reserved length and width (margins) as wellas the number, position and size of the holes should comply with therelevant requirements for placing the optical synchronoustransmission equipment.

Water supply anddrainage

The service pipes, drain pipes and rain pipes should not pass throughthe equipment room. Fire hydrants should not be placed in theequipment room, but in corridors or the place near the staircase wherethey can be easily seen and accessed to.

Internal partition wall The place where the equipment is installed is separated from theequipment room door. The partition wall can hold back some dusts,as be shown in Figure 3-2.



20

Item Requirements

Installation positionof the air conditioner

The air conditioner should be installed in the place where thedischarged air from the air conditioner shall not be directed to theequipment. The air conditioner must be away from a window toprevent the air conditioner blowing moisture on the window todevices in the equipment room when the window is not securelyclosed.

Other requirements In addition to the rodent-proof measures (for example, measuresagainst mice), measures against proliferation of fungi and mildewshould be taken in the equipment room.When there is high humidity such as on rainy days, do not open thedoor of the equipment room to prevent moisture increase that maybe condensed into water on cold surfaces of the devices in theequipment room.Storage batteries must be placed separately from devices in theequipment room.

Figure 3-2 Internal partition wall of the equipment room

Equipment

Air conditioner

Partition wall

3.1.4 Cleanliness of the Equipment RoomThis section describes the requirements for the cleanness of the equipment room.

Dusts on the equipment may lead to electrostatic adherence, and consequently result in poorconnection between metal connectors or connecting points. This will reduce the service life ofthe equipment, and even makes it faulty. Table 3-3 shows the specifications for the density anddiameter of dust particles in the equipment room.



21

Table 3-3 Limits of dust diameter and density in the equipment room

Maximum Diameter(mm) Maximum Density (particles/m3)

0.05 14x105

1 7x105

3 24x104

5 13x104

The equipment room shall be guarded against dust and corrosion by harmful gases such asSO2, H2S, NH3, and NO2. 3.1.6 Corrosive Gas Control Requirements shows the limits forthem.

To meet the above requirements, take the following measures:

l Keep the equipment room far away from pollution sources.

l Seal the doors and windows.

l Always wear clean lab coat and protective footwear before getting into the equipment room.

l Cover the ceiling and walls of the equipment room with wallpapers or lusterless paint(pulverized paint prohibited) to prevent dust flake-off.

3.1.5 Requirements for Temperature and Humidity inside theEquipment Room

This section describes the requirements for the relative humidity and ambient temperature in theequipment room.

Proper temperature and humidity should be maintained inside the equipment room for thetransmission equipment to work well constantly, as shown in Table 3-4.

Too high or low temperature or humidity will do harm to the transmission quality and servicelife of the equipment. Too high relative humidity in the equipment room for a long period willgreatly jeopardize the equipment. It will cause poor insulation or even electrical leakage incertain insulation materials. Sometimes, it can cause changes in the mechanical performance ofsuch materials. Moreover, the metal parts of the equipment are prone to rusting. But when therelative humidity is too low, the captive screws will become loose as the insulation washer mayget dry and shrink. Meanwhile the static electricity generated in the dry climate may damagethe circuits of the equipment. Too high indoor temperature will greatly reduce the reliability ofthe equipment. If the equipment runs in such a high temperature environment for a long period,its life will be shortened because the over high temperature will accelerate aging of the insulationmaterials.

Table 3-4 Requirements for temperature and humidity inside the equipment room

Temperature Humidity

- 20C to 60C Long-termoperating condition

Short-term operatingconditions



22

Temperature Humidity

10% - 90% 5% - 95%

NOTEThe temperature and humidity are measured 1.5 m above the floor and 0.4 m ahead of chassis when itworks under normal environment conditions (without any protection plate in front of the cabinet).

The short-term operating conditions indicate that the successive working time of the equipment does notexceed 96 hours, and the accumulated annual working time does not exceed 15 days.

3.1.6 Corrosive Gas Control RequirementsThis section describes the requirements for the corrosive gases in the equipment room.

Besides dust-proof efforts, measures should be taken to prevent the equipment room from beingcorroded by harmful gases, for example, SO2, H2S, NH3 and so on. Table 3-5 shows the contentlimit on corrosive gases.

Table 3-5 Corrosive gas content specification

Item Unit: part per billion (ppb) Monthly Average Content

SO2 ppb 10

H2S ppb 3

NH3 ppb 500

Cl2 ppb 1

N02 ppb 50

HF ppb 1

O3 ppb 2

To fulfill the above requirements, take the following measures for the equipment room:

l Build the equipment room away from places with high-density corrosive gases such asmines, metallurgical plants, tire plants, rubber plants, and chemical plants.

l Keep the equipment room far away from sewers, effluent pipes, shafts, dumps, and septictanks. The air intake of the equipment room should be at the opposite side to the pollutionsource.

l Do not use sulfur-containing organic materials to decorate the equipment room. Thesematerials include ESD pads, thermal insulation cotton, and soundproof cotton that are madeup from sulfur-containing rubber.

l Do not store diesels or gasoline engines in the equipment room where devices are placed.When an oil-fired engine is outside the equipment room, ensure that the exhaust of theengine is in the downstream direction of the equipment room and the engine is far awayfrom the air intake vent of the air conditioner for the equipment room.



23

l Place storage batteries isolated from one another. You are suggested to put one battery ina room.

l Make an agreement with a professional monitoring company to monitor the environmentregularly.

3.1.7 Electromagnetic RequirementsThis section describes the electromagnetic conditions and the measures for suppressingelectromagnetic interferences.

The electromagnetic requirements are showed in Table 3-6.

Table 3-6 Electromagnetic specification

Item Parameter

Low frequency magnetic field Frequency (Hz) 50 to 20 000

Ampl. A/m (rms) 10 to 0.025

Amplitude modulation radiatedelectromagnetic fields

Frequency (MHz) 0.009 to1000

Ampl. V/m (rms) 3

Pulse modulation radiated electromagneticfields

Frequency (GHz) 1 to 20

Ampl. ( V/m (peak) ) 3

To suppress electromagnetic interferences, take the following measures:

l Build the equipment room way from electric transformers, high-voltage power lines andother equipment or devices with high current. For example, you may build it 20 meters ormore away from the transformer, or more than 50 meters from high-voltage power lines.

l Build the room way from high-power radio transmitters. For example, build it at a placefree of high-power radio transmitters within 500 meters.

l If there is a mobile communication transmitter in the comprehensive building, make sureits interference level complies with the corresponding standard. Shielding and isolationmeasures can be taken for further protection if necessary.

l Release and execute stipulations that forbid any personnel using wireless handycommunication devices close to equipment in the equipment room.

3.1.8 ESD ProtectionThis section describes the requirements for the ESD prevention and the preventive measures forthe equipment room.

The absolute static voltage value should be less than 2000 V.

To fulfill this requirement, take the following measures:

l Train the operators on ESD prevention.l Control the humidity in the room to reduce the impact from static electricity.



24

l Lay ESD floor in the room.l Wear ESD shoes and uniforms before entering the room.l Use ESD tools such as ESD wrist straps, ESD tweezers and extraction tools when dealing

with the equipment.l Ground all conducting materials in the room, including computer terminals.l Use ESD worktables.l Keep non-ESD materials (such as common bags, foams, and rubbers) at least 30 cm away

from boards and ESD-sensitive components.

3.1.9 Surge protection and Grounding RequirementsThis section describes the requirements for surge protection and grounding.

Table 3-7 shows the requirements for surge protection and grounding.

Table 3-7 Requirements for surge protection and grounding

Item Description

On structure ofthe equipmentroom

Build the equipment room with steel and concrete. The equipment roomshould be equipped with facilities such as surge protector to protect itagainst direct lightning strokes. Make sure the surge protection groundingof the equipment room, or that of devices such as the surge protector,shares the same grounding body with the protection grounding of thebuilding where the room is located in.

Use TN-S forAC powersupply

Equip the communication office with special electric transformers andmetal-jacketed or insulation-jacketed power cable. The power cable is topass through a steel pipe and buried in the earth before entering the office.Both ends of both the metal jacket and the steel pipe should be groundedby proximate. Make sure the buried length is no less than 15 meters. Eachof the three live cables at the low-voltage side of the AC transformershould be equipped with a gapless zinc oxide arrester respectively. Thechassis, the AC neutral cable of the low-voltage side, and the metal jacketof the cable connected to the chassis should all proximately grounded.

Equip theincoming powercable with asurge protector

Do not lead in or lead out the AC/DC power cables aerially for the office.Equip the in-room low-voltage power cable with a surge protector in thevoltage regulator or in the AC panel. The arrester should be groundedproximately. If the office is located in the city, it is recommended to usean arrester with the nominal discharge current no less than 20 kA. If it islocated in the suburb of intermedial lightning danger level or higher, anarrester with the surge current higher than 60 kA is recommended. Iflocated in an isolated huge building in the city or in the mountain areawhere lightning strokes occur often, please use an arrester that has a surgecurrent more than 100 kA. The ground cable should be less than 1 meterin length.



25

Item Description

DC powersupplygrounding

The working ground of the office, that is, the anode of a -48 V DC powersupply or the cathode of a 24 V power supply, should be led from the in-door grounding bus line by proximate. The ground cable should satisfythe maximum load of the equipment. The power supply facilities for theoffice are to possess a DC working neutral line, which is introduced fromthe general grounding bus line or the protection ground bar of theequipment room.

Equipotentconnection

All communication equipment and auxiliary equipment in the room suchas the mobile base station and the transmitting, exchanging, power anddistribution frame should be connected to the protection ground. Theprotection grounding of all equipment in the communication office shouldshare a same general ground bar, while that of the same equipment roomall connect to the same protection ground bar. The working ground andprotection ground of the communication equipment in the equipment roomshould adopt the joint grounding mode, that is, they share a samegrounding network. Protection grounding efforts should also be done tothe indoor cable tray, equipment chassis, metal ventilation pipe, metaldoor or window.

Generalrequirements ongrounding

The AC neutral line is forbidden to be connected to the protection groundof any communication equipment. Make sure there is no fuse, switch orother devices of the like on a grounding line. All grounding lines shouldbe as short and straightforward as possible. Make all efforts to avoidwinding of them.

On thegroundingresistor

< 10 ohms. The upper end of the grounding body should be 0.7 meters ormore underground. In cold areas, the grounding body should be buried inthe frozen layer or lower. Make regular monitor efforts on the groundingresistor to make sure the grounding is always valid.

On routing of thesignal cable

Signal cables should be led into the communication office fromunderground. Aerial routing of signal cables is forbidden. The leadin orleadout communication cable should be metal-jacketed. Otherwise, theyshould be routed in metal pipes. The ground cable of the arrester shouldbe as short as possible. The empty pairs in the cable should be connectedto the protection ground in the equipment room.

Lightning-proofrequirements ofoutdoor cables

When the equipment is installed in an outdoor cabinet, the cablesconnected to the equipment may be exposed outdoors. If the length of theexposed cables exceeds 5 m, a signal lightning protector must be installedon the equipment.

On thegrounding busline

The general grounding bus line can be grounding loop or bar. The groundcable should be not of aluminum material. If interconnection occursbetween different metal connectors, take measures to avoid by electricchemical corrosion. Generally, the cross-sectional area is a copper bar ofno less than 120 mm2 or zinc-plated flat steel of the same resistance. Thegrounding bus line should be kept insulated from the construction steel.



26

Item Description

On thegrounding lead-in wire

The grounding lead-in should be no longer than 30 meter. As for thematerial, it is recommended to use zinc plated flat steel with the cross-sectional area being 40 mm x 4 mm or 50 mm x 5 mm.

3.1.10 Power SupplyThis section describes the DC power supply system.

The working power voltage for the equipment ranges from -38.4 V to -57.6 V. The transmissionequipment offers a transmission path for communication networks, so its interruption will havea wide influence. Therefore, the DC power distribution system should be protected against powerfailure and configured with storage batteries. To deal with a long-term power outage, a dieselgenerator should be equipped as the standby AC power supply for the backbone transmissionequipment. 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 the OptiXtransmission equipment. Functionally, it serves to:

l Stabilize the voltage for the transmission equipment to work reliably.

l Store energy. In the case of outage of mains, the storage battery can feed power for a periodof time, which depends on its capacity, so that the communication will not be interruptedimmediately.

l Filter for large capacitors. The storage batteries are useful for absorbing surge voltage fromrectifiers and preventing noise and power frequency interference from getting into thecommunication equipment.

l Automatically shut down. When the voltage of the storage battery drops to below -43 V,the control circuit can automatically shut down the output.

The storage battery of OptiX optical transmission equipment is charged and discharges under alow, constant voltage. Table 3-8 shows the relevant requirements.

Table 3-8 DC charge/discharge status and voltage requirements

PowerSupplyCategory

MainsSupplyStatus

BatteryCharge /Discharge

DC VoltageValue

TerminalVoltage ofEachStorageBattery

TheNumber ofStorageBatteries inEachGroup

DC- Normal Floatingcharged bythe rectifier

Floating chargevoltage reaches53.5 V.

2.23 V 24 PCS



27

PowerSupplyCategory

MainsSupplyStatus

BatteryCharge /Discharge

DC VoltageValue

TerminalVoltage ofEachStorageBattery

TheNumber ofStorageBatteries inEachGroup

Outage Discharge Dischargevoltage reaches43.2 V.

1.8 V

Resumed Underloadingconditions,automatically chargedwith acurrent 0.1to 0.15 timesof thebatterycapacity.

When thecharging voltagereaches 56.4 V, itautomaticallychanges toconstant voltagemode, that ischanges thecharging status tofloating charge.

2.35 V

Primary power supply (rectifier)l Primary power supplies shall be able to operate in parallel, and there should be current

equalizing device between them.

l The primary power supplies should be equipped with a current limiting device.

l The output voltage of the primary power supply should meet the requirement for initialcharging of storage batteries, that is 2.35 x 24= 56.4 V DC (when the power supply is -48V DC)

l A DC voltmeter and an ammeter should be installed for the primary power supplies.

l The efficiency of the primary power supply should be more than 85% and its power factormore than 0.8.

l Natural cooling is recommended for the primary power supply. The primary power supplyshould be able to work continuously with full load within 0C - 40C.

l The output noise voltage (measured with a psophometer, plus weighing factors) of theprimary power supply should meet the requirements shown in Table 3-9.

l The primary power supply should be able to automatically shut down the output at a lowvoltage.

Table 3-9 DC voltage specifications

Item DC Power Supply for Transmission Equipment

Nominal value (V) - 48

Voltage fluctuation range (V) - 38.4 to - 57.6



28

Item DC Power Supply for Transmission Equipment

Noisevoltage

0 Hz - 300Hz 400 mV (peak value)

300 Hz - 3400Hz 2 mV (weighted noise of psophometer)

3.4 kHz - 150kHz

Single frequency: 5mV effectivevalue

Broadband: 100 mV effectivevalue

150 kHz - 200kHz

Single frequency: 3 mV effectivevalue

Broadband: 30mV effectivevalue

200 kHz - 500kHz


500 kHz - 30MHz


DC distributor and control panell The capacity of the primary power supply should be designed according to the power

consumption of the transmission equipment of the terminal office, and a certain marginshould be reserved. Generally, high frequency switching power supplies with a highswitching efficiency should be adopted, which should work in N+1 hot standby mode.There should be an output current equalizer for each power module. The failure of a singlepower module will not affect the normal operation of the whole DC power distributionsystem.

l Each control panel can access a minimum of two groups of storage batteries. When one ofthem fails, the other can supply power instead.

l Each control panel can access a minimum of 5 primary power supplies.l The power supply equipment should be capable of automation, so as to satisfy the non-

attendant requirement.l When the primary power supply charges the storage batteries in floating charge mode, the

number of primary power supplies put into operation depends on the load. When oneprimary power supply becomes faulty, it will drop out automatically, while the standbyprimary power supply will automatically go into operation.

l In the case of mains outage, storage batteries will discharge. When the mains resumes, itwill automatically recharge the discharged storage batteries with a current 0.1 to 0.15 timesof the battery capacity. When the charging voltage reaches 56.4 V, it will automaticallychange to constant-voltage charging.

l When the storage batteries are fully charged, they will automatically change to floatingcharge.

The OptiX optical transmission equipment also has critical restriction on random transientnoises, which include the abnormal operation noise of the equipment caused by externalmagnetic interference and the interference from the equipment itself and the grounding cables.The shorter the duration of the transient pulse, the higher values of such transient noises can beallowed. For the allowable values, see Figure 3-3.



29

Figure 3-3 Transient noises

1000V

100V

10V

1V

0.1V

0.1 ms 1ms 10ms 100 ms 1 000 ms

V

T

l When the power supply equipment fails or works abnormally, visual and audible alarms

should be given. Such alarm information should be able to be sent to the operation andmaintenance center.

l In case short circuit occurs in a tributary of the power supply system, the whole powerdistribution system should not be affected by the sharp voltage reduction. And the peakstriking voltage should not cause any breakdowns to the transmission equipment.

3.1.11 Lighting in the Equipment RoomThe OptiX transmission equipment room is equipped with three lighting systems.

l Active lighting system, which is powered by mains supply.l Backup lighting system, which is powered by backup power supply (diesel electric

generator) of the office.l Emergency lighting system, which is powered by storage batteries when the mains supply

has been interrupted but the backup power supply has not yet started to supply power.

3.1.12 Protection SystemThis section describes the requirements for the protection system.

ESD protection

The equipment-affecting electrostatic induction comes from the external electric field such asoutdoor high voltage transmission line or lightning. It also comes from the internal system suchas indoor environment, floor materials or equipment structure.

Static electricity may damage the chips on integrated circuit boards and cause faults in softwareand electronic switch. Statistics shows that 60 percent of the damaged circuit boards are causedby static electricity. It is essential to take effective ESD protection measures.

The following measures are recommended:

l Ground the equipment well. While laying the raised floor covered with semiconductivematerials, copper foil should be used for grounding at a number of points on the floor (the



30

copper foil should be placed between the concrete ground and the semiconductive floorand should be connected with the ground cable).

l Take dust-proof measure. Dust may do great harm to the optical synchronous transmissionequipment. Dusts or other particles getting into the equipment room may cause poorconnection between connectors or metal connecting points. When the humidity in the roomis high, dust can cause electrical leakage. It is found in maintenance that the equipmentfailure is often caused by accumulated dusts. Especially, when the humidity in the room isvery low, electrostatic adherence is likely to occur.

l Keep proper temperature and humidity. Too high humidity may make the metal componentsrusty, while too low humidity may induce static electricity.

l Always wear an ESD wrist strap and lab coat when touching a circuit board to preventelectrostatic damage to the equipment.

Interference prevention

With the development of technologies and social economy, more and more electromagneticsignals are transmitted in the air. They may affect the communication quality by causing cross-talk and stray noise, and even result in communication interruption. The electromagneticinterference (EMI) sources include:

l The corona discharge of the electric transmission line

l The transformer

l Switches

l Waveform distortion of the power supply network caused during the operation of largeequipment

l Radio frequency (RF) interference

l Natural interference sources such as terrestrial magnetic field and external radiation

The interference, from either inside or outside the equipment or the application system, affectsthe equipment through conductive modes such as capacitance coupling, inductance coupling,electromagnetic wave radiation, common impedance (including grounding system) and cable(power and signal cables). In terms of external relations of the equipment, interference is fromthe signal cable, power cable, grounding system and spatial electromagnetic wave.

Integrated circuits (ICs) have the interference resistance capability to a degree. However whenthe external noises go beyond their anti-interference tolerance, corrupted signals and even systemmalfunction will be caused. It is impossible to eliminate or shield all the interference sources,but the following measures can be taken to suppress the interference signals:

l High frequency interference in the power supply network is generated when the primarycoil of the power supply transformer is coupled to the secondary coil through distributedcapacitors. To sup

huawei optix ptn 950 installation guide(v100r005)

Documents

huawei trademarks

huawei proprietary

huawei industrial basebantian

versionoptix ptn

installation process

system installation

installation flow

additional information