Nokia Solutions and Networks WTPA-01 GSM 1900 Transceiver User Manual dn00187365x2x0xen

Nokia Solutions and Networks GSM 1900 Transceiver dn00187365x2x0xen

Field Upgrade

Nokia MetroSite EDGE Base StationDN00187365 © Nokia Corporation Draft 1 (50)Issue 2-0 en Nokia Proprietary and ConfidentialField Upgrade
Field Upgrade2 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enThe information in this documentation is subject to change without notice and describes onlythe product defined in the introduction of this documentation. This documentation is intendedfor the use of Nokia's customers only for the purposes of the agreement under which thedocumentation is submitted, and no part of it may be reproduced or transmitted in any form ormeans without the prior written permission of Nokia. The documentation has been prepared tobe used by professional and properly trained personnel, and the customer assumes fullresponsibility when using it. Nokia welcomes customer comments as part of the process ofcontinuous development and improvement of the documentation.The information or statements given in this documentation concerning the suitability, capacity,or performance of the mentioned hardware or software products cannot be considered bindingbut shall be defined in the agreement made between Nokia and the customer. However, Nokiahas made all reasonable efforts to ensure that the instructions contained in the documentationare adequate and free of material errors and omissions. Nokia will, if necessary, explain issueswhich may not be covered by the documentation.Nokia's liability for any errors in the documentation is limited to the documentary correction oferrors. NOKIA WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL(INCLUDING MONETARY LOSSES), that might arise from the use of this documentation orthe information in it.This documentation and the product it describes are considered protected by copyrightaccording to the applicable laws.NOKIA logo is a registered trademark of Nokia Corporation.Other product names mentioned in this documentation may be trademarks of their respectivecompanies, and they are mentioned for identification purposes only.Copyright © Nokia Corporation 2002. All rights reserved.
DN00187365 © Nokia Corporation Draft 3 (50)Issue 2-0 en Nokia Proprietary and ConfidentialHereby, Nokia Corporation, declares that this product is in compliance with theessential requirements and other relevant provisions of Directive: 1999/5/EC.The product is marked with the CE marking and Notified Body number according to theDirective 1999/5/ECFCC FCC §15.21 - Information to user - This product is used as an intentional radiatedequipment and any changes or modifications on the equipment without any approvalby Nokia could void the user's authority to operate the equipment.FCC §15.105 - Information to user - This equipment has been tested and found tocomply with the limits for a Class B digital device, pursuant to part 15 of the FCCRules. These limits are designed to provide reasonable protection against harmfulinterference in a residential installation. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordance with theinstructions, may cause harmful interference to radio communications. However, thereis no guarantee that interference will not occur in a particular installation. If thisequipment does cause harmful interference to radio or television reception, which canbe determined by turning the equipment off and on, the user is encouraged to try tocorrect the interference by one or more of the following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to which thereceiver is connected.• Consult the dealer or an experienced radio/TV technician for help.0523
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DN00187365 © Nokia Corporation Draft 5 (50)Issue 2-0 en Nokia Proprietary and ConfidentialContentsContents 5List of tables 7List of figures 81 Overview of field upgrade 91.1 GSM to GSM/EDGE upgrade 91.1.1 Working order for GSM/EDGE upgrade 91.1.2 Working order for 1W TRX power upgrade 101.2 Capacity upgrade by BTS chaining 111.2.1 Working order for a MetroSite EDGE BTS chaining upgrade 112 Preparing for upgrade 132.1 Power supply precautions 132.2 Checking warnings and cautions 142.3 Checking the upgrade deliveries 152.3.1 Parts required for a GSM/EDGE upgrade 152.3.2 Parts required for a BTS chaining upgrade 152.4 Checking the site for an upgrade 162.4.1 Checking environmental conditions on the site 162.5 Checking the installation equipment 172.6 Removing the BTS cover 172.7 ESD protection 183 Replacing the power supply unit 213.1 PSU removal 213.2 PSU installation 234 Replacing the cooling fan 254.1 Removing the VMFA cooling fan 254.2 Installing the HVMF high capacity cooling fan 285 Replacing or installing new TRX units 315.1 Upgrading by replacing TRXs 325.1.1 Removing TRX units 325.1.2 Installing TRX units 345.2 Upgrading capacity by adding TRXs 356 Chaining Nokia MetroSite EDGE BTSs 376.1 Setting up a chaining connection 397 Commissioning for upgrade 417.1 Commissioning the BTS for GSM/EDGE 427.2 Commissioning the BTS chain 428 Completing the upgrade 45
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DN00187365 © Nokia Corporation Draft 7 (50)Issue 2-0 en Nokia Proprietary and ConfidentialList of tablesTable 1. Power supply rules during BTS upgrade or maintenance procedures 14Table 2. Parts required for a GSM/EDGE upgrade on the Nokia MetroSite EDGEBase Station 15Table 3. Tools and other equipment required for a field upgrade 17Table 4. PSU types used in MetroSite base stations 21
Field Upgrade8 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enList of figuresFigure 1. Electro-static sensitive device symbol 18Figure 2. Connecting the antistatic wrist strap 19Figure 3. Power supply unit 22Figure 4. Removing the units 23Figure 5. Sealing strip and cable entry block 26Figure 6. VMFA cooling fan assembly mounting screws 27Figure 7. HVMF cooling fan assembly and mounting screws 29Figure 8. Cable entry block, cable allocations 29Figure 9. TRX slot order 32Figure 10. Example of blocking a TRX in Nokia BTS Manager 33Figure 11. Nokia MetroSite EDGE Base Station 5W GSM/EDGE TRX unit 36Figure 12. Chaining connection for three Nokia MetroSite EDGE base stations 39Figure 13. Routing the cables and fitting the cable cover 46Figure 14. Nokia MetroSite EDGE BTS cover and safety strap 47
Overview of field upgradeDN00187365 © Nokia Corporation Draft 9 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNote1Overview of field upgradeThis document provides instructions for upgrading an existing Nokia MetroSiteBTS installation. Field upgrades are done for the following reasons:• Upgrade of TRXs from GSM to GSM/EDGE transmission (includingupgrade from 1W TRXs, if relevant).• Upgrade of BTS capacity by chaining to include up to 12 TRXs.This chapter describes the upgrade options in more detail and the working orderfor the upgrade procedures.1.1 GSM to GSM/EDGE upgradeA GSM MetroSite BTS installation is upgraded to EDGE transmission byreplacing the GSM TRX units with 5W GSM/EDGE TRXs or by adding 5WGSM/EDGE TRXs to any spare TRX slots in the BTS.A software upgrade to CX 3.0 or later is also required for upgrade to EDGE. Thisis done locally at the BTS during commissioning with Nokia BTS Manager.With the 5W GSM/EDGE TRXs, MetroSite can operate with either GSM orEDGE transmission.If the MetroSite BTS still contains 1W TRXs, a higher capacity cooling fan anda different power supply unit must also be fitted to the BTS when the TRXs areupgraded to 5W GSM/EDGE TRXs.1.1.1 Working order for GSM/EDGE upgradeThe procedures to be completed and the working order in which they are done arepresented below.
Field Upgrade10 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enUpgrading TRXs to GSM/EDGE1. Read the information in Chapter 2 of this document, Preparing forupgrade. This chapter contains essential information about when to powerdown the BTS.2. Check the type of TRX units currently installed to confirm that they are 5WTRXs. For 1W TRX installations, see Section 1.1.2 this document.3. Replace the existing TRX units with 5W GSM/EDGE TRXs, as describedin Chapter 5.1 of this document, Upgrading by replacing TRXs.ORInstall new 5W GSM/EDGE TRXs to any spare TRX slots in the BTS, asdescribed in Chapter 5.2 of this document, Upgrading by adding TRXs.4. Follow the procedures for Commissioning for upgrade in Chapter 7 of thisdocument.5. Follow the procedures for Completing the upgrade in Chapter 8 of thisdocument.1.1.2 Working order for 1W TRX power upgradeThe procedures to be completed and the working order in which they are done arepresented below.Upgrading TRXs from 1W to 5W1. Read the information in Chapter 2 of this document, Preparing forupgrade. This chapter contains essential information about when to powerdown the BTS.2. Follow the procedures for Replacing the power supply unit in Chapter 3 ofthis document.3. Replace the existing TRX units with GSM/EDGE TRXs, as described inChapter 5 of this document, Replacing or adding new TRX units.4. Follow the procedures for Replacing the fan unit in Chapter 4 of thisdocument.
Overview of field upgradeDN00187365 © Nokia Corporation Draft 11 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNote5. Follow the procedures for Commissioning for upgrade in Chapter 7 of thisdocument.6. Follow the procedures for Completing the upgrade in Chapter 8 of thisdocument.1.2 Capacity upgrade by BTS chainingThe capacity of a Nokia MetroSite BTS installation can be upgraded byconnecting one or two slave BTSs to the master BTS with chaining cables via theinterface units. Up to 12 TRXs can be connected and set up as one BCF unit. Onlythe master BTS needs a transmission unit.All BTS cabinets in a chain must be upgraded to the GSM/EDGE standard.1.2.1 Working order for a MetroSite EDGE BTS chaining upgradeThe procedures to be completed and the working order in which they are done arepresented below.Chaining MetroSite BTSs1. Read the information in Chapter 2 of this document, Preparing forupgrade. This chapter contains essential information about when to powerdown the BTS.2. Follow the procedures for Chaining Nokia MetroSite EDGE BTSs inChapter 6 of this document.3. Follow the procedures for Commissioning the BTS chain in Chapter 7.2 ofthis document.4. Follow the procedures for Completing the upgrade in Chapter 8 of thisdocument.
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Preparing for upgradeDN00187365 © Nokia Corporation Draft 13 (50)Issue 2-0 en Nokia Proprietary and ConfidentialWARNINGWARNINGNote2Preparing for upgradeBefore starting any upgrade procedures, the procedures and precautions presentedin this chapter should be read and implemented as required.Some of the upgrade procedures require the BTS to be powered down. ReadSection 2.1, Power supply precautions, in this chapter before beginning theupgrade.2.1 Power supply precautionsPotentially lethal voltages!The BTS power must be switched OFF at the main disconnect device orcircuit breaker before starting maintenance work which involves the risk ofelectric shocks.Prevent injury to personnel or damage to the BTS equipment by following thepower supply rules for maintenance and upgrade procedures presented in Table .The switch on the power supply unit (PSU) of the BTS has two positions: ON andStand-by.
Field Upgrade14 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 en2.2 Checking warnings and cautionsThe warnings and cautions applicable to the MetroSite BTSs are detailed in NokiaMetroSite EDGE Base Station: Warnings and Cautions. Read these beforebeginning a field upgrade.Table 1. Power supply rules during BTS upgrade or maintenanceproceduresBTS upgrade or maintenanceprocedure Power supply rule for BTSReplacing a power supply unit or PSUcable• Power OFF at main disconnectdevice• PSU switch to Stand-byReplacing a grounding connection • Power OFF at main disconnectdevice• PSU switch to Stand-byDisconnecting or connecting antenna ordiversity cables on a TRXPSU can be switched to ON but TRXmust be blockedReplacing a TRX PSU can be switched ON but TRX mustbe blockedDisconnecting or connectingtransmission cablesPSU can be switched ON but TRX mustbe blockedReplacing a transmission unit PSU switch to Stand-byConnecting or disconnecting cables tothe interface unit (VIFA)PSU switch to Stand-by is advisedConnecting cables to the interface unitfor BTS chainingPSU switch to Stand-byReplacing an interface unit PSU switch to Stand-byReplacing a fan unit • Power OFF at main disconnectdevice• PSU switch to Stand-by
Preparing for upgradeDN00187365 © Nokia Corporation Draft 15 (50)Issue 2-0 en Nokia Proprietary and Confidential2.3 Checking the upgrade deliveriesCheck that the items delivered for the upgrade match the items required in yourupgrade/installation plan. Check the condition of the delivered items to confirmthat they are not damaged.2.3.1 Parts required for a GSM/EDGE upgradeRefer to Table 2 for details of the parts required for a GSM/EDGE upgrade.2.3.2 Parts required for a BTS chaining upgradeThe following parts are required for a BTS chaining upgrade. The number ofitems depends on whether there will be one or two slave cabinets in the chain.Table 2. Parts required for a GSM/EDGE upgrade on the Nokia MetroSiteEDGE Base StationUpgrade type Parts required5W GSM to 5W GSM/EDGE upgrade • 5W GSM/EDGE TRX units• Nokia SiteWizard with CX 3.0software and Nokia BTS Manager3.0 or later.1W GSM to 5W GSM/EDGE upgrade • 5W GSM/EDGE TRX units• Nokia SiteWizard with CX 3.0software and Nokia BTS Manager3.0 or later.• HVSA, HVSB, HVSC, or HVSD typepower supply unit (see Chapter 3 forspecifications)• HVMF type high capacity fan unit• HVCU type BTS cover, for use withhigh capacity fan
Field Upgrade16 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enNote• One or two Nokia MetroSite EDGE BTS base stations with GSM/EDGETRXs but without transmission units (depending on the number of slaveBTS cabinets planned).The BTS cabinets will need to be installed as described in the document, NokiaMetroSite EDGE Base Station: Installation. The parts required for BTSinstallation are listed in that document.• One or two Nokia MetroSite BTS extension cable kits (depending on thenumber of slave BTS cabinets planned). The kits contain a cable and atermination connector. There are three different lengths of extension cable,as follows:• extension cable kit, 3 metres (part 467614A)• long extension cable kit, 5 metres (part 469585A)• short extension cable kit, 1 metre (part 469584A)• Nokia SiteWizard with CX 3.0 software or later, and including Nokia BTSManager 3.0 or later.2.4 Checking the site for an upgradeBefore beginning the upgrade, the site should be checked by the site supervisor.The site should be checked against a site preparation checklist and confirmed ascorrect according to the site drawings and plans.The BTS site should be readily prepared according to the specifications given inNokia MetroSite EDGE Base Station: Requirements for Installation andOperation. In the case of a BTS chaining upgrade, the extra BTS cabinets shouldbe already installed and checked.If the site does not meet the requirements in the checklist, complete the sitedeficiency reports and report to the Installation Manager / Site Manager beforecontinuing with the upgrade.2.4.1 Checking environmental conditions on the siteCheck the site conditions before starting the upgrade procedures. In the case ofprecipitation (rain, snow or sleet), the site must be weather-guarded during theupgrading procedure to prevent damage to the units when the BTS cover isremoved. Note the following:
Preparing for upgradeDN00187365 © Nokia Corporation Draft 17 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNote• Rain or snow must not be allowed to fall on the internal surfaces of theequipment.• The cover must not be removed during conditions where dust can be blowninto the cabinet.2.5 Checking the installation equipmentTable 3 presents a list of the tools and other equipment required for upgrading aNokia MetroSite BTS.2.6 Removing the BTS coverBefore removing the cover of the BTS, refer to the information on power supplyprecautions and environmental conditions on the site, presented earlier in thischapter.Removing the cover issues an alarm to the BSC. Make sure that the BSC/NMSpersonnel is notified before removing the cover.Table 3. Tools and other equipment required for a field upgradePart NotesLaptop PC The PC should be compatible with NokiaSiteWizard software version 3.0.LMP cable For connecting BTS Manager softwareto the BTS via the LMP port on theinterface unitTorque driver with 60 mm (2.4 in) shaftand:• T10 and T25 Torx bits• 4 mm Allen bitRequired for:• Unit retaining screws• Cable entry block screwsTorque key For attaching diversity cablesCable ties and side cutting pliers For securing cable routing out of the BTSESD wrist strap To prevent electro-static dischargedamage
Field Upgrade18 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enCautionRemoving the BTS cover1. Unlock the cabinet lock at the bottom of the BTS.2. Remove the cover by sliding it upwards to disengage the hooks at the sideof the cover from the locking guides on the BTS chassis.3. When the cover is free, pull it away from the cabinet and hang it on thehook at the top left side of the chassis.You can also remove the cover completely to place it on the floor. Removethe safety strap before pulling the cover away (see Figure 14).2.7 ESD protectionSome units in the MetroSite BTS contain electro-static sensitive devices. TheBTS is labelled with an electro-static sensitive device symbol as shown in Figure1.Always use an anti-static wrist strap connected to the cabinet ESD stud, wheneverhandling electro-static sensitive units. The wrist strap and connection stud isshown in Figure 2.Figure 1. Electro-static sensitive device symbol
Preparing for upgradeDN00187365 © Nokia Corporation Draft 19 (50)Issue 2-0 en Nokia Proprietary and ConfidentialFigure 2. Connecting the antistatic wrist strapESD studto ESD studWrist strap
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Replacing the power supply unitDN00187365 © Nokia Corporation Draft 21 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNoteWARNING3Replacing the power supply unitThe power supply unit (PSU) must be replaced only if the MetroSite BTSinstallation is being upgraded from a 1W TRX configuration. See Table 4 for thecorrect type of PSU replacements for a 5W TRX installation.The PSU does not need replacing for 5W GSM to 5W GSM/EDGE fieldupgrades.3.1 PSU removalMake sure that the power is turned OFF at the main disconnect device beforeworking on the PSU.Table 4. PSU types used in MetroSite base stationsInput voltage 1W TRX BTSinstallations5W TRX BTSinstallationsAC 230 V VSAA HVSAAC 110 V VSAB HVSBDC +24 V - HVSCDC -48 V VSDA HVSD
Field Upgrade22 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enRemoving the PSU1. Turn the PSU power switch to Stand-by and turn the power OFF at theBTS’s main power disconnect device.2. Open the power connector cover on the PSU by removing the retainingscrews with a T10 Torx driver (see Figure 3).3. Unplug the power supply cable from the PSU.4. Loosen the unit's upper and lower retaining screws on the mountingbrackets using a T10 Torx driver.5. Slide the PSU unit out until it comes to a stop, then tilt the unit from the topand remove it (see Figure 4).Figure 3. Power supply unitUpper mounting bracketMain power switchPower connector coverPower cable sealPower cableLower mounting bracketRetaining screws
Replacing the power supply unitDN00187365 © Nokia Corporation Draft 23 (50)Issue 2-0 en Nokia Proprietary and ConfidentialFigure 4. Removing the units3.2 PSU installationInstalling the new PSU1. Slide the PSU into the appropriate slot. See Figure 4.2. Place the PSU into the bottom runner then push the top of the unit forwardinto the clearance slots provided in the top runners.3. Press the unit carefully into the connector on the backplane. Do not useexcessive force!4. Tighten the two PSU mounting screws on the upper and lower mountingbrackets using a T10 Torx torque driver. Tighten to 1.5 Nm (1.1 lb ft).5. Loosen the two T10 Torx retaining screws on the connector cover and openthe cover. See Figure 3.Power supply unitInterface unitTransmission unitTransceiver units
Field Upgrade24 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 en6. Plug the power supply cable connector into the PSU power input socket.7. Fit the power cable seal into the power connector cover. Close the coverand tighten the retaining screws.8. Turn the power ON at the BTS’s main power disconnect device and thenturn the PSU switch to the ON position.
Replacing the cooling fanDN00187365 © Nokia Corporation Draft 25 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNoteWARNING4Replacing the cooling fanThe cooling fan assembly must be replaced only if the MetroSite BTS installationis being upgraded from a 1W TRX configuration. The VMFA fan type fan mustbe replaced by an HVMF type, high capacity cooling fan.The BTS cover also needs replacing if the cooling fan is upgraded. The upgradedversion of the BTS cover (HVCU or WCUA) allows for the better ventilationprovided by the high power cooling fan.The cooling fan does not need replacing for 5W GSM to 5W GSM/EDGE fieldupgrades.The cooling fan assembly is located on the bottom of the BTS cabinet. Forupgrade, the complete fan assembly is removed and replaced with the HVMF fanupgrade kit, which includes the HVMF fan and complete fan assembly.4.1 Removing the VMFA cooling fanMake sure that the power is turned OFF at the main disconnect device beforeworking on the fan unit.Complete the following procedures to remove the fan assembly.Removing the cable entry block1. Unclip and slide the cable cover towards you (see Figure 13).
Field Upgrade26 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enNote2. Disengage and remove the cable cover support plate.3. Remove all connecting cables to the units.All connecting cables must be removed in order to replace the cooling fan outersealing gasket.4. Detach the outer sealing gasket at the point where it covers the cable entryblock, see (A) in Figure 5.5. Remove the two 4 mm (0.157 in) Allen screws on the cable entry block.See (B) in Figure 5.6. Open the cable entry block at the point where the cables are routed. SeeFigure 8.7. Disengage the cables from the cable entry block.Figure 5. Sealing strip and cable entry blockASealing stripAllen screwsM6Allen key 4 mm
Replacing the cooling fanDN00187365 © Nokia Corporation Draft 27 (50)Issue 2-0 en Nokia Proprietary and ConfidentialCautionRemoving the VMFA fan assembly1. Remove and retain the fan assembly holding screws as follows (see Figure6):When the four fan assembly holding screws have been removed, the fan unit isonly supported in the cabinet by the backplane connector. Do not let go of the fanassembly after releasing the screws.a. Three T10 Torx screws on the right-hand side of the assembly.b. One T25 Torx screw on the front of the assembly.Hold the fan unit in place and proceed to the next step.2. Loosen cooling fan assembly from the backplane connector by moving itslightly backwards and forwards in the cabinet. The backplane connectoris on the left hand side of the cabinet.Pull the fan assembly out of the connector and out from the bottom of thecabinet.Figure 6. VMFA cooling fan assembly mounting screwsT10T25
Field Upgrade28 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enWARNING4.2 Installing the HVMF high capacity cooling fanMake sure that the power is turned OFF at the main disconnect device beforeworking on the fan unit.Complete the following procedure to fit the HVMF fan assembly.Install the HVMF fan assembly1. Lift the new HVMF fan assembly to the bottom of the cabinet and align theconnector on the assembly with the backplane connector on the cabinet.2. Push the assembly into the backplane connector. Do not use excessiveforce!3. Refit the four fan assembly mounting screws in their respective slots (seeFigure 7):a. 3 x T10 Torx on the right hand side of the assembly.b. One T25 Torx at the front of the assembly.4. Refit all the connecting cables:a. Open the cable entry block and re-thread all cables through the outerfan sealing gasket.b. Reconnect all the cables.c. Place the cables into their respective slots in the cable entry block(see Figure 8).5. Refit and tighten the two 4 mm (0.157 in) Allen screws on the cable entryblock (see Figure 5).6. Refit the outer fan sealing gasket.
Replacing the cooling fanDN00187365 © Nokia Corporation Draft 29 (50)Issue 2-0 en Nokia Proprietary and ConfidentialFigure 7. HVMF cooling fan assembly and mounting screwsFigure 8. Cable entry block, cable allocationsT10T25AntennacablesPower supply cableExtension cables- Grounding cable, 1 pc- Transmission cables, max 8 pcs- External alarms and controls
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Replacing or installing new TRX unitsDN00187365 © Nokia Corporation Draft 31 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNote5Replacing or installing new TRX unitsA MetroSite BTS can be upgraded to EDGE by replacing 1W or 5W GSM TRXunits with 5W GSM/EDGE units.Additional TRXs can also be added to a single BTS (up to four TRXs) in order toincrease the BTS’s capacity or to add EDGE capability.A 5W GSM/EDGE TRX can be commissioned to operate on GSM orGSM/EDGE transmission.It is possible for a BTS to contain a mixture of 5W GSM and 5W GSM/EDGETRX units.Figure 9 shows the slot order of TRX units in a MetroSite BTS. TRX 1 is alwaysthe master TRX.
Field Upgrade32 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enCautionFigure 9. TRX slot order5.1 Upgrading by replacing TRXs5.1.1 Removing TRX unitsRefer to the power supply requirements in Table 1 before working on the TRXunits.To make it easier to remove the antenna connectors, remove the TRX units in thefollowing order: TRX 3, 4, 1, 2 (see Figure 9).Removing TRX units1. Connect your Nokia BTS Manager PC to the LMP connector on theinterface unit.TRX3TRX4TRX1TRX2
Replacing or installing new TRX unitsDN00187365 © Nokia Corporation Draft 33 (50)Issue 2-0 en Nokia Proprietary and Confidential2. Block the TRX using Nokia BTS Manager (if the sector is not alreadylocked from the BSC). In the Supervision - Equipment View window, rightclick on the TRX image and select the BLOCK button in the ObjectProperties dialogue window (see Figure 10).Figure 10. Example of blocking a TRX in Nokia BTS Manager3. Make a note of the TRX cabling.4. Disconnect the antenna and diversity cables from the TRX units to beremoved.5. Loosen the units’ two retaining screws using a T10 Torx screwdriver.6. Slide each TRX unit outwards to disengage it from the backplaneconnector and then pull the unit upwards to remove it (see Figure 4). Usethe handle on the front of the TRX for pulling the unit.
Field Upgrade34 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enNote5.1.2 Installing TRX unitsIn order to reach and tighten the antenna connectors with a torque spanner, it isnecessary to install the TRX units in the following order: TRX 4, 3, 2, 1 (seeFigure 9). The master TRX is located in slot 1.If you are replacing a master TRX in a single TRX installation or increasing thenumber of TRXs, refer to Nokia MetroSite EDGE Base Station: Maintenance formore detailed information.Installing TRX units1. Slide the unit into the appropriate slot. See Figure 11.2. Press each replacement unit carefully into the backplane to engage it in theconnector. Do not use excessive force!3. Fix and tighten the unit retaining screws to 1.5 Nm (1.11 lb ft) using a T10Torx screwdriver.4. Reconnect the diversity cables to form the planned diversity configuration.Refer to Nokia MetroSite EDGE Base Station: Installation for moreinformation on diversity cabling.5. Reconnect the antenna connectors according to the sectoring solutionplanned. Use a torque spanner/wrench to tighten the SMA type connectorsto 1 Nm (0.74 lb ft).6. If new TRX units have been added to replace formerly empty slots (fittedwith shield units), route the associated cables through the cable entry blockand secure them with cable ties. See Figure 13.The cable entry block must be removed in order to open it and route newcables through. Use a torque driver with a 4 mm Allen bit to remove andreplace the two cable entry block screws.7. Run the TRX test from Nokia BTS Manager (optional).8. With Nokia BTS Manager, right-click the BCF object in the EquipmentView window and carry out a BCF Object Reset, or, if locked from theBSC/NMS, request an unlock from the BSC/NMS (the BCF reset isautomatic in this case).
Replacing or installing new TRX unitsDN00187365 © Nokia Corporation Draft 35 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNote9. If the green LED is lit on the TRX after the replacement procedure, theBTS is in service. If the LED is yellow or red, check the alarms and run theTRX test from the BSC/NMS.5.2 Upgrading capacity by adding TRXsThe capacity of a single MetroSite EDGE BTS can be expanded to include up tofour TRXs. For information on coverage patterns and sectoring, refer to NokiaMetroSite EDGE Base Station: Product Description.The capacity of a MetroSite EDGE BTS can also be expanded by chaining. SeeChapter 6 of this document for information on Chaining Nokia MetroSite EDGEBTSs.The new TRX object must be created at the BSC/NMS before the new TRX canstart operation.Adding a new TRX1. Remove the shielding from the slot which is going to be populated with anew TRX. Use a Torx T10 driver to remove the retaining screws of theshielding unit.2. Unpack the new TRX.3. Insert the new TRX into the slot.4. Connect your Nokia BTS Manager laptop PC to the LMP connector on theinterface unit. .5. Select TRANSMISSION | TRAFFIC MANAGER from the main menu inBTS Manager.6. Allocate transmission capacity to the new TRX.7. Run the TRX test from BTS Manager (optional).8. If any objects are locked, unlock them from the BSC/NMS.
Field Upgrade36 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enFigure 11. Nokia MetroSite EDGE Base Station 5W GSM/EDGE TRX unitAntenna connectorDiversity outDiversity in
Chaining Nokia MetroSite EDGE BTSsDN00187365 © Nokia Corporation Draft 37 (50)Issue 2-0 en Nokia Proprietary and Confidential6Chaining Nokia MetroSite EDGE BTSsOne or two Nokia MetroSite EDGE BTS cabinets can be added as slave cabinetsto a master BTS, increasing the capacity to anything between five and 12 TRXsin one BCF object.Chaining is done by connecting chaining cables from the interface unit (VIFA) ofthe master BTS to the interface unit of the slave BTS. If a three cabinet chain isrequired, a further cable is used to connect the first slave to the second slave inseries. See Figure 12 for an illustration of the chaining connection.The following requirements apply to the chaining feature:• An FXC transmission unit is required in the master BTS. The slave BTScabinets do not require a transmission unit.• TRX 1 in the master BTS is the master TRX for the chained unit.• CX 3.0 software or later must be loaded to the BTS from the BSC.
Field Upgrade38 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enLegend:1 Connections at the VIFA interface units. A two BTS chain isalso possible. A termination connector is fitted to the first(master cabinet) “EXT” connector in the chain (connectorsupplied in the extension cable kit).2 MetroSite BTS extension cable (chaining cable). The cablehas a “master” connector on one end and a “slave” connectorSlaveDN02107147EXTEXTVIFAEXTEXTVIFAEXTEXTVIFA13245
Chaining Nokia MetroSite EDGE BTSsDN00187365 © Nokia Corporation Draft 39 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNoteat the other. Three different lengths of cable are available: 1,3 and 5 metres.3 Master BTS cabinet, with FXC transmission unit and TRXs 1to 4. TRX 1 is the master TRX for the chain.4 Slave BTS cabinet 1, with TRXs 5 to 8. Fewer TRXs arepossible. A transmission unit must not be fitted.5 Slave BTS cabinet 2, with TRXs 9 to 12. Fewer TRXs arepossible. A transmission unit must not be fitted.Figure 12. Chaining connection for three Nokia MetroSite EDGE base stations6.1 Setting up a chaining connectionFollow the procedure to set up a chaining connection.Connecting MetroSite BTSs in a chain1. Refer to your upgrade/installation plan and install the extra BTS cabinetsas required. See the documents Nokia MetroSite EDGE Base Station:Requirements for Installation and Operation and Nokia MetroSite EDGEBase Station: Installation for instructions.The longest extension cable available for chaining is five metres. Make sure thatyou have got a suitable length of cable before mounting the extra BTS cabinetsfor chaining.2. Read Chapter 2 in this document, Preparing for upgrade, and familiariseyourself with the precautions and procedures. Remove the cover of theBTS.3. Confirm that all the BTS cabinets in the planned chain have been mountedcorrectly and contain the 5W GSM/EDGE TRXs as described in your site’stransmission plan.4. Confirm that the extra sectors and TRX have been added to the BCF in theBSC database, and remain in the locked state.
Field Upgrade40 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enNoteNote5. Request a BCF lock for the site from the BSC or NMS. You can check ifthe site has been locked by connecting a BTS Manager laptop to the masterBTS in the chain, starting BTS Manager and checking TRX PROPERTIESin the Supervision - Equipment View window (right-click with the mouseover a TRX in the window).6. Power OFF the master BTS. Inform your Operations Manager before doingthis and follow the procedures for powering down a BTS.The site will already be “off air” if it has been locked.Power OFF the master BTS by turning the switch on the power supply unitto Stand-by.7. On the master BTS, connect the end of the chaining cable marked “Master”to the upper “EXT” connector on the interface unit. See Figure 12 for anillustration of the connection.8. On the slave BTS, connect the “slave” end of the cable which comescoming from the master BTS to the lower “EXT” connector on theinterface unit. See Figure 12 for an illustration of the connection.9. If a second slave BTS cabinet is required (making a three BTS chain),connect the master end of the chaining cable from the upper “EXT”connector on the first slave BTS to the lower “EXT” connector on theinterface unit of the second slave BTS (the third BTS in the chain). SeeFigure 12 for an illustration of the connection.10. Fit a termination connector to the first, unused lower “EXT” connector inthe chain. This will be in the master BTS, depending on the number ofBTSs in the chain.11. Route the cables through the appropriate slots cable entry blocks on theBTS cabinets and secure them with cable ties to the cable entry plate.Figure 8 shows the cable entry block.12. You can now commission the BTS. Follow the instructions given inChapter 7.2 of this document, Commissioning the BTS chain.The newly chained BTS site should remain in the locked state until you havecompleted the commissioning procedures. Do not request a BCF unlock until youhave commissioned the BTS chain.
Commissioning for upgradeDN00187365 © Nokia Corporation Draft 41 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNoteNoteNote7Commissioning for upgradeWhenever a Nokia MetroSite Base Station installation is upgraded toGSM/EDGE or for BTS chaining it must be re-commissioned locally with NokiaBTS Manager version 3.0 or later. This includes downloading the appropriatesoftware (CX 3.0 or later) to the master TRX from the BSC and configuring thetransmission.To ensure that you have access to the correct software versions for the upgrade,Nokia SiteWizard version 3.0 or later should be loaded on the laptop being usedfor commissioning.A Nokia MetroSite BTS installation fitted with 5W GSM/EDGE TRXs can becommissioned for GSM transmission, EDGE transmission, or a combination ofboth.CX 3.2 software or later must be loaded at the BSC before BTS commissioningfor the EDGE and chaining upgrades. The software is downloaded to the TRXsduring the commissioning process with Nokia BTS Manager 3.x.
Field Upgrade42 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 en7.1 Commissioning the BTS for GSM/EDGECommissioning the BTS for GSM/EDGE upgrade1. Make sure that all the units and cables are installed and connectedcorrectly.2. Connect the laptop PC loaded with Nokia BTS Manager 3.0 to the LMPconnector on the BTS’s interface unit. An LMP cable is required.3. Switch ON the PSU at the BTS.4. Start BTS Manager 3.0 on your laptop. Wait until Site Supervisorycondition is achieved. All units must show green LEDs.5. With BTS Manager, uncommission the BTS. Follow the procedures foundin Nokia MetroSite EDGE Base Station: Commissioning.6. Carry out the commissioning procedures as instructed in Nokia MetroSiteEDGE Base Station: Commissioning.7. When commissioning is complete, disconnect the laptop from the BTS andcarry out the procedures in Chapter 8 of this document, Completing theupgrade.7.2 Commissioning the BTS chainThe chain of Nokia MetroSite EDGE base stations will be commissioned as oneBCF object, with TRX 1 in the master BTS performing the BCF traffic functionsfor the chain. Otherwise, the master TRX in each cabinet controls only theheating/cooling and alarm functions.Commissioning the BTSs for a chaining upgrade1. Make sure that all the units and cables are installed and connectedcorrectly.2. Connect the laptop PC loaded with Nokia BTS Manager 3.0 to the LMPconnector on the interface unit of the master BTS. An LMP cable isrequired.3. Switch ON the PSUs at the master BTS and the slave BTSs.
Commissioning for upgradeDN00187365 © Nokia Corporation Draft 43 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNoteNoteNote4. Start BTS Manager 3.0 on your laptop.5. With BTS Manager, uncommission the master BTS by selectingCOMMISSIONING | WIZARD from the main menu and selecting the‘Undo Commissioning’ button.Before or during the commissioning of the BTS chain, CX 3.0 software must beloaded to the master BTS from the BSC. CX 3.0 software or later must beavailable at the BSC.The newly chained BTS site should remain in the locked state until you havecompleted the commissioning procedures. Do not request a BCF unlock until youhave commissioned the BTS chain.6. Carry out the commissioning process with BTS Manager’s CommissioningWizard, as described in the document Nokia MetroSite EDGE BaseStation: Commissioning. At the stage of traffic allocation, follow theinstructions called Allocating transmission capacity for chaining in theTraffic Manager chapter of the document.It is important that when commissioning has been completed, the new BTS areunlocked in the BSC database before the BCF is unlocked.7. When commissioning is complete, disconnect the laptop from the masterBTS and carry out the procedures in Chapter 8 of this document,Completing the upgrade.
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Completing the upgradeDN00187365 © Nokia Corporation Draft 45 (50)Issue 2-0 en Nokia Proprietary and ConfidentialWARNING8Completing the upgradeGROUNDING. Before refitting the cabinet cover, make sure that thegrounding cable has been reconnected to the BTS cabinet.Fitting the cabinet cover and completing the upgrade1. Make sure that all the units and cables are correctly installed andconnected.2. Fit the cable cover (see Figure 13) as follows:a. Fit the cable cover support onto the hook at the end of the perforatedplastic panel.b. Align the cable cover into the recesses on the cable cover supportand slide it downwards until it locks into place.
Field Upgrade46 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enFigure 13. Routing the cables and fitting the cable cover3. Turn ON the external power supply switch.4. Turn ON the PSU in the BTS.ABCable cover Cable coversupport
Completing the upgradeDN00187365 © Nokia Corporation Draft 47 (50)Issue 2-0 en Nokia Proprietary and ConfidentialNote5. Refit the cabinet cover as follows (see also Figure 14):If the Nokia MetroSite BTS installation was upgraded from 1W TRXs to 5WTRXs, a new cover is required (HVCU type).a. Attach the safety strap to the fixing point on the top of the cabinet.b. Place the cover over the cabinet and align the locking hooks on thecover to the locking rail on the chassis. Push the cover into thechassis and pull downwards to lock the hooks firmly into the rail.c. You can check that the cover is securely fastened by pushing on itssides.Figure 14. Nokia MetroSite EDGE BTS cover and safety strap6. Lock the cabinet with the key.7. Inform your Installation Manager / Site Manager that the upgrade iscomplete and fill in the appropriate site reports.Fixing pointfor safety strapunder thecover top
Field Upgrade48 (50) © Nokia Corporation Draft DN00187365Nokia Proprietary and Confidential Issue 2-0 enNote8. Recycle any applicable material.In case you need to dispose of replaced units, contact Nokia Professional Servicesfor information on recycling. An environmental data package, includingdisassembly instructions and a material balance document is also available viaNokia Professional Services.
DN00187365 ©Nokia Corporation Draft 49 (50)Issue 2-0 en Nokia Proprietary and ConfidentialIndex upgrade typesGSM to GSM/EDGE 9Aadding new TRXs to a BTS 35antistatic wrist strap 18Bblocking a TRX 33BTS Manager 41Cchaining 37commissioning 41cooling fanHVMF, high capacity 28installing 28removing 25VMFA 25Ddisposal of units 48Eelectro-static discharge protection 18environmental conditions 16environmental data package 48equipment required for upgrade 17Ggrounding 45Iinstallingcover 45high capacity cooling fan 28PSU 23TRX 31,34Mmaster TRX 34Pparts required for BTS chaining upgrade 15parts required for GSM/EDGE upgrade 15power supply precautions 13power supply unit types 21preparations for upgrade 13Rremoving assemblycooling fan 25cable entry block 25cover 17PSU 21TRX 32replacingTRX 31Ssite, checking 16software procedures 41Ttools required for upgrade 17transceiver unit (TRX)blocking 33installing 34master 34removing 32slot order 32unblocking 34Uunblocking a TRX 34upgrade types1W to 5W TRX 9capacity upgrade by chaining 11capacity upgrade to a single BTS 35Wworking order for GSM/EDGE upgrade 9
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