bbs 6102 description

BBS 6102 Description

DESCRIPTION

3/1551-LZA 701 6009 Uen C

Copyright

© Ericsson AB 2010. All rights reserved. No part of this document may bereproduced in any form without the written permission of the copyright owner.

Disclaimer

The contents of this document are subject to revision without notice due tocontinued progress in methodology, design and manufacturing. Ericsson shallhave no liability for any error or damage of any kind resulting from the useof this document.

Trademark List

All trademarks mentioned herein are the propertyof their respective owners. These are shown in thedocument Trademark Information.

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Contents

Contents

1 Documentation Information 1

1.1 Target Group 1

2 General Descriptions 3

2.1 Basic BBS 6102 Characteristics 3

2.2 BBS 6102 Overview 3

3 General Information 7

3.1 Product Versions 7

3.2 Safety Approval 8

3.3 Repair 9

3.4 Approved Battery Types 9

3.5 Supervision 10

3.6 Space Requirements 10

4 Dimensions 13

4.1 Physical Dimensions 13

4.2 Color 16

4.3 Weight 16

4.4 Locking System 16

5 Climate System 19

5.1 General 19

5.2 Temperature Sustainability 19

5.3 Power Supply 21

5.4 Climate System Power Consumption 21

5.5 Cooling System Self-Check 22

6 Environment 23

6.1 Temperature and Humidity 23

6.2 Sealing 23

6.3 Vibration and Shock 23

7 Power System 25

7.1 Battery Capacity 25

7.2 Operating Configuration 25

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7.3 Electrical Interfaces 28

7.4 Charging and Discharging Characteristics 29

7.5 EMC 29

Glossary 31

Reference List 33

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Documentation Information

1 Documentation Information

This document describes function and performance of the Battery BackupSystem BBS 6102.

1.1 Target Group

The target groups for these instructions are the personnel involved in the siteinstallation engineering process and those responsible for the installation,integration, and maintenance of Radio Base Station (RBS) sites.

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General Descriptions

2 General Descriptions

2.1 Basic BBS 6102 Characteristics

The BBS 6102 is an outdoor battery backup system, supplying �48 V DCbackup power to AC-powered RBS 6102 and RBS 6101 in the event of ACmains failure. The BBS 6102 cabinet can support up to three RBS cabinets.

BBS 6102 is installed on the ground, in the vicinity of the RBS cabinets.

To ensure proper battery capacity, long battery life and low operational cost,the BBS features two alternative cooling systems: the Direct Air Cooling Unit orthe Active Cooling Unit.

The Direct Air Cooling Unit brings in cooler exterior air through a filter andmoves hot interior air out of the enclosure. The Active Cooling Unit is an airconditioning system for warmer climate to keep the batteries cool.

The cabinet can be also equipped with an optional Heater to allow operationof the cabinet in very cold climates.

If additional battery capacity is required, the BBS 6102 can be extended withanother BBS 6102.

Four versions of the BBS cabinet are available, depending on the battery type,Absorbent Glass Mat (AGM) or tubular plate (OPzV) batteries, and earthquakeresistance.

2.2 BBS 6102 Overview

Four possible BBS 6102 types of cabinets are available, depending on thebattery type used, as shown in Table 1.

Table 1 BBS Cabinet Types

BBS Cabinet Type Explanation

BBS 6102 EQ 4 Cabinet, AGM Racks for AGM batteries, certified forearthquake zone 4

BBS 6102 EQ 4 Cabinet, OPzV Racks for OPzV batteries, certifiedfor earthquake zone 4

BBS 6102 Non-EQ Cabinet, AGM Racks for AGM batteries, nonearthquake certification

BBS 6102 Non-EQ Cabinet, OPzV Racks for OPzV batteries, nonearthquake certification

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Figure 1 and Table 2 show the main contents of the AGM batteries cabinets.

Figure 1 BBS 6102 Main Contents – AGM Batteries

Table 2 BBS 6102 Main Contents – AGM Batteries

Pos. Description

A Circuit breaker box front panel

B Cooling system fuse

C Battery belt

D Earthquake protection

E BBS cabinet frame

F Removable dummy plate for cable entry

G Battery clamp

H Roxtec cable entry

I Heater

J Condensed water outlet

K Front door

L Battery block AGM

M Direct Air Cooling Unit or Active Cooling Unit

N Climate system controller

Figure 2 and Table 3 show the main contents of the OPzV batteries cabinets.

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General Descriptions

Figure 2 BBS 6102 Main Contents � OPzV Batteries

Table 3 BBS 6102 Main Contents – OPzV Batteries

Pos. Description

A Circuit breaker box front panel

B Cooling system fuse

C Battery clamp

D Earthquake protection

E BBS cabinet frame

F Removable dummy plate for cable entry

G Roxtec cable entry

H Heater

I Condensed water outlet

J Front door

K Battery block OPzV

L Direct Air Cooling Unit or Active Cooling Unit

M Climate system controller

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General Information

3 General Information

3.1 Product Versions

3.1.1 RBS Support

The BBS 6102 supports up to three RBS cabinets with �48 V DC operationalvoltage.

3.1.2 Climate Options

To accommodate different climate requirements, the BBS is available withthe following solutions:

• The Direct Air Cooling Unit, that moves interior air to cooler exterior air

• The Active Cooling Unit, that cools the interior air and distributes the airinside the cabinet. The battery compartment is sealed from the outside air

• Together with the Direct Air Cooling Unit or the Active Cooling Unit thecabinet can also be equipped with a Heater to allow operation of the cabinetin very cold climates

3.1.3 Standard Configuration

The BBS cabinet has the following standard configuration:

• The battery cables for one battery string

• One output to the RBS with the 150 A circuit breaker

• Cooling system power cable

• Cable entry, up to 32 cables

• Eight battery belts (delivered only with AGM battery racks).

3.1.4 Upgrade Options

The cabinet can be upgraded according toTable 4.

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Table 4 Upgrade Options

Option Description

Direct Air Cooling Unit or ActiveCooling Unit

The Direct Air Cooling Unit movesinterior air to cooler exterior air.

The Active Cooling Unit cools theinterior air and distributes the airinside the cabinet.

See Section 3.1.2 on page 7.

Heater The Heater allows operation of thecabinet in very cold climates.

Battery cable kit, string 2 The battery kit allows to attach batterystring 2





150 A circuit breaker kit, second RBS The circuit breaker allows to attachsecond RBS cabinet

150 A circuit breaker kit, third RBS The circuit breaker allows to attachthird RBS cabinet

250 A circuit breaker kit, extensionBBS

The circuit breaker allows to attachadditional BBS cabinet

3.2 Safety Approval

The BBS 6102 complies with the following safety standards:

Europe

• EN 60950-1

• EN 60529

• EN 60950-22

• EN 60335-1

• EN 60335-2-40

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General Information

North America

• UL 60950-1

• CSA-C22.2 No. 60950-1-07

• UL 60950-22

• CSA-C22.2 No. 60950-22-07

• UL 50

• CSA C22.2 No. 94-M91

International

• IEC 60950-1

• IEC 60529

• IEC 60950-22

• IEC 60335-1

• IEC 60335-2-40

3.3 Repair

Available components are defined by the spare parts list for the BBS 6102; seedocument BBS 6102 Maintenance.

3.4 Approved Battery Types

The specified performance and warranties stipulate the use of batteries thathave been approved for the BBS 6102. See document Battery Guidelines1/15443-LZA 701 6009.

Table 5 shows the approved battery types for BBS 6102.

Table 5 BBS 6102 Approved Battery Types and BBS 6102 Battery Capacity

Battery Type Battery Capacity [Ah]

Max. No. ofStrings

Max. Capacity [Ah]

NorthStar NSB170 FT (AGM)

170 6 1020

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Northstar NSB170 Blue (AGM)(1)

140 6 840

BAE Secura OPzV650

650 1 650

(1) High-cyclic batteries.

3.5 Supervision

In the BBS the following units are supervised and raise an alarm:

• Door

• The Direct Air Cooling Unit or Active Cooling Unit

In the air cooling units the parameters shown in Table 6 are supervised.

Table 6 Supervision of Direct Air Cooling and Active Cooling Units

Direct Air Cooling Unit Active Cooling Unit

Battery voltage Battery voltage

Battery compartment temperature Battery compartment temperature

Fan speed (single fan system) Fan speed, both internal and externalfans

Climate System Controller Climate System Controller

Heater Heater

Temperature Sensors Temperature Sensors

Battery charge and discharge characteristics are defined and controlled by theRBS control system.

3.6 Space Requirements

Figure 3 and Table 7 show the space requirements for the BBS.

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General Information

Figure 3 Space Requirements

Note: In the figure above Z4 RACK means BBS cabinet types for earthquakezone 4. See also Table 7.

Table 7 Space Requirements

Distance from: EQ 4(1) Non-EQ(2)

Front ≥700 mm ≥700 mm

Sides ≥75 mm to wall and 150mm to adjacent cabinet

≥50 mm to wall and 100mm to adjacent cabinet

Back ≥200 mm to wall and400 mm when placedback to back

≥200 mm to wall and400 mm when placedback to back

Top ≥500 mm ≥500 mm

(1) BBS cabinet types for earthquake zone 4(2) BBS cabinet types not certified for earthquake zones

The maximum distance required to other cabinets are:

• 10 m to a RBS cabinet

• 3 m to a second BBS cabinet

Floor Requirements

The floor must be level and fulfill the requirements shown in Table 8.

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Table 8 Floor Requirements

Parameter Requirements

Max deviation ±3 mm per 2 m

Max gradient ±0.5�

Footprint

Figure 4 shows the BBS footprint.

Figure 4 BBS Drilling Pattern

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Dimensions

4 Dimensions

4.1 Physical Dimensions

4.1.1 Cabinet Dimensions

The figure below and Table 9 show the size of the BBS.

Figure 5 BBS Size

Table 9 BBS Size

Height Width Depth

BBS without door 800 mm

BBS with door

1450 mm 1300 mm

831 mm

4.1.2 Cable Interface Panels

Bottom and Side Panel Interfaces

The BBS 6102 is equipped with one cable entry at the bottom left-hand sideof the cabinet, which can be moved to the right or left side of the cabinet byremoving one of the dummy plates, see Figure 6 and Figure 7.

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Figure 6 Cable Entry (Bottom View)

Figure 7 Dummy Plate on BBS Side

Recommended Cable Dimensions

The cable terminals of the BBS 6102 are designed for the following cabledimensions:

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Dimensions

Table 10 Cable Dimensions

Connections Cable Cross-sectionArea

Maximum CableLength

1 pair × 50 mm² <10 mDC output to RBS

1 pair × 70 mm² 10–15 m

DC input from BBSextension cabinet

1 pair × 95 mm² <6 m

Earth grounding cable 1 × 35 mm²

Note: Maximum allowed distance between the RBS and BBS is 10 metersand between the main and extension BBS is 3 meters, but cable lengthhas to include also the internal routing distance.

Cable Entry

There is one configuration of cable entry (32/16 Roxtec). See figure belowand Table 11.

Figure 8 Cable Entry

Table 11 Configuration of Cable Entry

Cable Entry Configuration Cable Quantity (max.) and Size

1 32/16 8 cables Ø 3.5–16.5 mm (20w40)

8 cables Ø 10–25 mm (30w40)

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4.2 Color

The color of the cabinet is gray.

4.3 Weight

BBS 6102 without Batteries

Table 12 shows the weight of cabinets without batteries and of climatecomponents that are used.

Table 12 Weight of BBS Cabinets and Components

Product Weight

BBS 6102 EQ 4 Cabinet, AGM 233 kg

BBS 6102 EQ 4 Cabinet, OPzV 276 kg

BBS 6102 Non-EQ Cabinet, AGM 179 kg

BBS 6102 Non-EQ Cabinet, OPzV 202 kg

Direct air cooling cassette 12 kg

Active cooling cassette 16 kg

Heater 2 kg

Batteries

Table 13 shows the maximum weight of the available battery configurations.

Table 13 Maximum Battery Weight

Battery Type Total Weight

Northstar NSB 170 FT (AGM) 1430 kg

Northstar NSB 170 Blue (AGM)(1) 1350 kg

BAE Secura OPzV 650 1280 kg

(1) High-cyclic batteries.

4.4 Locking System

The BBS 6102 can be equipped with one security lock with two identical keys.The same key system is used as in Ericsson's outdoor macro radio basestations. Thus, the same key system lock options are available also for thisBBS 6102.

Once the lock has been opened or in case no security lock has been installed,the BBS front cover is opened via the standard Ericsson lock handle. This lock

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Dimensions

handle is the same handle that is used to open the RBS 6102 and many otherEricsson macro RBS and site cabinets.

For more information on lock alternatives, contact your local Ericssonrepresentative.

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Climate System

5 Climate System

5.1 General

The BBS features two alternative cooling systems:

• Direct air cooling, featuring fan ventilation, for best performance ingeographic areas with moderate temperature.

• Active cooling, for maximum battery life in warm climates

The cooling systems are designed as plug-in cassettes.

The cabinet can be equipped with an optional Heater kit, which is installed atsite.

5.2 Temperature Sustainability

Minor inner temperature deviations may occur, depending on solar radiationand the exact point of measurement inside the compartments.

5.2.1 Direct Air Cooling Thermal Performance

The Direct Air Cooling Unit features a fan and an IP55 class filter with thefollowing performance:

• Filter class F5

• Air flow: 200 m³/h

• Initial Pressure Drop: 10–20 Pa

The filter must be changed regularly, see BBS 6102 Maintenance.

Table 14 describes the performance of the Direct Air Cooling Unit.

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Table 14 Direct Air Cooling Performance

Description Value

Cooling of batteries The fan regulates the batterycompartment temperature to be0 to 5�C higher than the ambienttemperature, if

• Battery compartment temperature >ambient temperature

• Ambient temperature >+15 �C(1)

Nominal ventilation airflow 200 m³/h

(1) Note that the Direct Air Cooling Unit does not create temperatures lower than the ambienttemperature

5.2.2 Active Cooling Thermal Performance

The Active Cooling Unit has a compressor module which separates theinterior climate from the exterior climate. It provides the batteries with aroom-temperature environment, which maximizes the battery life-time. TheActive Cooling Unit is recommended in areas with dusty or polluted air.

Table 15 describes the performance of the Active Cooling Unit.

Table 15 Active Cooling Performance Table

Description Value

Cooling of batteries The Active Cooling Unit maintainsa battery compartment temperatureof 22–30�C in real climate scenarioswith peak ambient temperatures of<+50�C, while avoiding repetitive deepdischarging of the batteries.

The Active Cooling Unit starts tocool when the battery compartmenttemperature is ≥+26 �C and stopsto cool when the battery reaches atemperature of +22�C.

Nominal ventilation airflow 200 m³/h

5.2.3 Battery Heater Performance

The battery heater performance is described in Table 16.

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Climate System

Table 16 Heater Performance

Description Value

Heating of batteries The Heater maintains the batterycompartment temperature ≥+10�C atan ambient temperature ≥ �33�C.

The Heater starts at a batterycompartment temperature of ≤+8�Cand stops at +12�C.

5.3 Power Supply

The climate system and its control system is operating at �48 V DC powersupplied by the RBS. When AC power is lost, the system voltage drops andthe climate system controller stops the cooling and heating, to maximize thebattery backup time.

Climate system power supply voltage range:

Maximum voltage �60 V DC

Cooling or heatingdisconnection voltage

�49 V DC and �57.6 V DC

Minimum allowedvoltage for the climatesystem controller

0 V DC

5.4 Climate System Power Consumption

Power consumption depends on the ambient temperature and how much thecooling system is in operation.

During AC power failures, the cooling system is switched off to ensuremaximum battery backup time for connected RBSs.

The following tables specifies the power consumption of the climate systemunits.

Table 17 Power Consumption, Direct Air Cooling

Operational Mode Power Consumption

Startup <20 W

Continuous operation ≤20 W

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Table 18 Power Consumption, Active Cooling


Startup 125 W

Continuous operation. Typicalambient temperature: +30ºC

168 W

Continuous operation. Worst-caseambient temperature:+50ºC

200 W

Table 19 Power Consumption, Heater


Startup 600 W

Continuous operation 600 W

5.5 Cooling System Self-Check

At power on, the climate control system performs a self-check routine of itsheater, cooler, fans, and associated control functions.

5.5.1 Indicators

Table 20 shows the operational status indications of the climate control system.

Table 20 Operational Status Indications

Indicator Status Operational Mode

Green on Power present

Yellow on Direct Air Cooling Unit or Active Cooling Unitin operation (flashing if an alarm; for moreinformation see document Installing BBS 6102.It is valid for both Direct Air Cooling Unit andActive Cooling Unit.

Red on System failure

All off No power available to Direct Air Cooling Unitor Active Cooling Unit

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Environment

6 Environment

6.1 Temperature and Humidity

The environmental temperature and humidity limits for the BBS are specifiedin Table 21.

Table 21 Environmental Capability

Ambient ClimateProduct Version

Temperature Humidity

BBS with Direct AirCooling

≤ According to therecommended maximalambient temperaturefor the specific batteryinstalled with respect tooptimal battery life andperformance(1)

15–100 %

BBS with Active Cooling +5 �C to +50 �C 15–100 %

BBS with optionalHeater

≥ �33 �C 15–100 %

(1) Note that the Direct Air Cooling Unit does not create temperatures lower than ambient.

Note: Anticipated climatic conditions, discharge characteristics anddesired remaining battery backup and life time have impact on therecommendation’s relevance.

The BBS complies with the following standards:

• ETSI EN 300 019-1-2 (Transport), 300 019-1-1 (Storage), and 300 019-1-4(Operation)

• IEC 60721-3-2 (Transport), 60721-3-1 (Storage), and 60721-3-4(Operation)

6.2 Sealing

IP55, according to EN 60529/IEC 529.

6.3 Vibration and Shock

Provided that the BBS 6102 contains approved batteries, it complies with thefollowing requirements:

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• IEC 60068-2-6, 60068-2-27, 60068-2-64

• GR-63-CORE

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Power System

7 Power System

7.1 Battery Capacity

See Section 3.4 on page 9 for approved batteries and battery capacity.

7.2 Operating Configuration

Note: Approved battery configurations connected to loads are listed in Table22 and Table 23.

Minimum one battery string (four 12 V DC blocks) installed (or extension BBS)per connected circuit breaker outlet and load (150 A circuit breaker, ratedcontinuously load 150 A).

AGM batteries

Table 22 Operating Configuration

Configuration RBSNumber

Quantityof BatteryStrings

BatteryCapacity

ExtensionAvailability

RBS 1 1 to 6 batterystrings

1020 Ah max. Extensioncabinet canbe connected

RBS 2 n/a - n/a

1

RBS 3 n/a - n/a


340 Ah n/a


680 Ah. Extensioncabinet canbe connected

2

RBS 3 n/a - n/a

RBS 1 1 to 2 batterystring

340 Ah n/a


340 Ah n/a

3


340 Ah Extensioncabinet canbe connected

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For all configurations with more than two strings per circuit breaker, additionalcircuit breakers must be assembled and connected with copper bridges.

OPzV Batteries

Required quantity on battery string (24 × 2 V DC blocks) installed per connected150 A circuit breaker outlet.

Table 23 Operating Configuration

Configuration RBS Nnumber

Quantityof Batterystrings

BatteryCapacity

ExtensionAvailability

1 RBS 1 1 batterystring

650 Ah Extensioncabinetcan beconnected

Each additional RBS upgrade must contain the additional circuit breaker aswell as a removable bridge.

Figure 9 shows the connection diagram for a �48 V DC AGM batteryconfiguration.

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Power System

Figure 9 �48 V DC Connection Diagram with AGM Batteries

Figure 10 shows the connection diagram for a �48 V DC OPzV batteryconfiguration.

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Figure 10 �48 V DC Connection Diagram with OPzV Batteries

7.3 Electrical Interfaces

DC Output to RBS load: 3 × 150 A

DC Input from Extension cabinet: 1 × 250 A

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Power System

CLU Alarm: (1) 1 × 0.45 m, terminal block

Door alarm: (1) 1 × 0.55 m, terminal block

Earth Grounding points; see Figure 11: 9 × M8

RBS temperature sensor cable: 1

(1) Normally closed. To be connected to the RBS external alarms input panel.

The earth grounding points of the BBS are shown in Figure 11.

Figure 11 Earth Grounding Points

7.4 Charging and Discharging Characteristics

Charging and discharging characteristics are defined and controlled by theRBS control system. For more information, see Installing BBS 6102, Section5 and relevant RBS documentation.

7.5 EMC

The BBS 6102 complies with the following EMC requirements:

• ETSI EN 301 489-1

• ETSI EN 301 489-8

• ETSI EN 301 489-23

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• ETSI EN 300 386

• FCC part 15, subpart B

• ICES-003 issue 4

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Glossary

Glossary

KgKilogram

AGMAbsorbent Glass Mat batteries

AhAmpere hour

BBSBattery Backup System

CISPRThe International Special Committee on RadioInterference

CLUClimate Unit

CSACanadian Standards Association

DCDirect Current

ECEuropean Commission

EMCElectromagnetic Compatibility

ENEuropean Norms

ETSIEuropean Telecommunication StandardInstitute

FCCFederal Communications Commission

IECInternational Electrical Commission

ITU-TInternational Telecommunication Union -Telecommunication Standardization Sector

mmMillimeter

NEMANational Electrical Manufacturers Association

OPzVTubular plate batteries

RBSRadio Base Station

ULUnderwrites Laboratories (US Standard)

VVolt

WWatt

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Reference List

Reference List

[1] Installing BBS 6102, 11/1553-LZA 701 6009

[2] BBS 6102 Maintenance, 5/1541-LZA 701 6009

[3] Battery Guidelines, 1/15443-LZA 701 6009

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bbs 6102 description

Documents

telecom

ericsson

rbs 6102

bbs 6102