Nokia MetroSite EDGE Base Station Field Upgrade DN00187365 Issue 2-0 en © Nokia Corporation Nokia Proprietary and Confidential Draft 1 (50)
Field Upgrade The information in this documentation is subject to change without notice and describes only the product defined in the introduction of this documentation. This documentation is intended for the use of Nokia's customers only for the purposes of the agreement under which the documentation is submitted, and no part of it may be reproduced or transmitted in any form or means without the prior written permission of Nokia.
0523 FCC Hereby, Nokia Corporation, declares that this product is in compliance with the essential requirements and other relevant provisions of Directive: 1999/5/EC. The product is marked with the CE marking and Notified Body number according to the Directive 1999/5/EC FCC §15.21 - Information to user - This product is used as an intentional radiated equipment and any changes or modifications on the equipment without any approval by Nokia could void the user's authority to operate the equipment. FCC §15.
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Contents Contents 5 List of tables 7 List of figures 8 1 1.1 1.1.1 1.1.2 1.2 1.2.1 Overview of field upgrade 9 GSM to GSM/EDGE upgrade 9 Working order for GSM/EDGE upgrade 9 Working order for 1W TRX power upgrade 10 Capacity upgrade by BTS chaining 11 Working order for a MetroSite EDGE BTS chaining upgrade 11 2 2.1 2.2 2.3 2.3.1 2.3.2 2.4 2.4.1 2.5 2.6 2.
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List of tables Table 1. Power supply rules during BTS upgrade or maintenance procedures Table 2. Parts required for a GSM/EDGE upgrade on the Nokia MetroSite EDGE Base Station 15 Table 3. Tools and other equipment required for a field upgrade Table 4.
Field Upgrade List of figures Figure 1. Electro-static sensitive device symbol 18 Figure 2. Connecting the antistatic wrist strap 19 Figure 3. Power supply unit 22 Figure 4. Removing the units 23 Figure 5. Sealing strip and cable entry block 26 Figure 6. VMFA cooling fan assembly mounting screws 27 Figure 7. HVMF cooling fan assembly and mounting screws 29 Figure 8. Cable entry block, cable allocations 29 Figure 9. TRX slot order 32 Figure 10.
Overview of field upgrade 1 Overview of field upgrade This document provides instructions for upgrading an existing Nokia MetroSite BTS installation. Field upgrades are done for the following reasons: • Upgrade of TRXs from GSM to GSM/EDGE transmission (including upgrade 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 order for the upgrade procedures. 1.
Field Upgrade Upgrading TRXs to GSM/EDGE 1. Read the information in Chapter 2 of this document, Preparing for upgrade. This chapter contains essential information about when to power down the BTS. 2. Check the type of TRX units currently installed to confirm that they are 5W TRXs. For 1W TRX installations, see Section 1.1.2 this document. 3. Replace the existing TRX units with 5W GSM/EDGE TRXs, as described in Chapter 5.1 of this document, Upgrading by replacing TRXs.
Overview of field upgrade 1.2 5. Follow the procedures for Commissioning for upgrade in Chapter 7 of this document. 6. Follow the procedures for Completing the upgrade in Chapter 8 of this document. Capacity upgrade by BTS chaining The capacity of a Nokia MetroSite BTS installation can be upgraded by connecting one or two slave BTSs to the master BTS with chaining cables via the interface units. Up to 12 TRXs can be connected and set up as one BCF unit. Only the master BTS needs a transmission unit.
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Preparing for upgrade 2 Preparing for upgrade Before starting any upgrade procedures, the procedures and precautions presented in this chapter should be read and implemented as required. WARNING Some of the upgrade procedures require the BTS to be powered down. Read Section 2.1, Power supply precautions, in this chapter before beginning the upgrade. 2.
Field Upgrade Table 1. Power supply rules during BTS upgrade or maintenance procedures BTS upgrade or maintenance procedure Replacing a power supply unit or PSU cable Replacing a grounding connection 2.
Preparing for upgrade 2.3 Checking the upgrade deliveries Check that the items delivered for the upgrade match the items required in your upgrade/installation plan. Check the condition of the delivered items to confirm that they are not damaged. 2.3.1 Parts required for a GSM/EDGE upgrade Refer to Table 2 for details of the parts required for a GSM/EDGE upgrade. Table 2.
Field Upgrade • One or two Nokia MetroSite EDGE BTS base stations with GSM/EDGE TRXs but without transmission units (depending on the number of slave BTS cabinets planned). Note The BTS cabinets will need to be installed as described in the document, Nokia MetroSite EDGE Base Station: Installation. The parts required for BTS installation are listed in that document. • One or two Nokia MetroSite BTS extension cable kits (depending on the number of slave BTS cabinets planned).
Preparing for upgrade 2.5 • Rain or snow must not be allowed to fall on the internal surfaces of the equipment. • The cover must not be removed during conditions where dust can be blown into the cabinet. Checking the installation equipment Table 3 presents a list of the tools and other equipment required for upgrading a Nokia MetroSite BTS. Table 3. 2.
Field Upgrade Removing the BTS cover 1. Unlock the cabinet lock at the bottom of the BTS. 2. Remove the cover by sliding it upwards to disengage the hooks at the side of 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 the hook at the top left side of the chassis. You can also remove the cover completely to place it on the floor. Remove the safety strap before pulling the cover away (see Figure 14). 2.
Preparing for upgrade Wrist strap to ESD stud ESD stud Figure 2.
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Replacing the power supply unit 3 Replacing the power supply unit The power supply unit (PSU) must be replaced only if the MetroSite BTS installation is being upgraded from a 1W TRX configuration. See Table 4 for the correct type of PSU replacements for a 5W TRX installation. Note The PSU does not need replacing for 5W GSM to 5W GSM/EDGE field upgrades. Table 4. 3.
Field Upgrade Removing the PSU 1. Turn the PSU power switch to Stand-by and turn the power OFF at the BTS’s main power disconnect device. 2. Open the power connector cover on the PSU by removing the retaining screws 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 mounting brackets using a T10 Torx driver. 5.
Replacing the power supply unit Power supply unit Interface unit Transmission unit Transceiver units Figure 4. 3.2 Removing the units PSU installation Installing the new PSU DN00187365 Issue 2-0 en 1. 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 forward into the clearance slots provided in the top runners. 3. Press the unit carefully into the connector on the backplane. Do not use excessive force! 4.
Field Upgrade 24 (50) 6. 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 cover and tighten the retaining screws. 8. Turn the power ON at the BTS’s main power disconnect device and then turn the PSU switch to the ON position.
Replacing the cooling fan 4 Replacing the cooling fan The cooling fan assembly must be replaced only if the MetroSite BTS installation is being upgraded from a 1W TRX configuration. The VMFA fan type fan must be replaced by an HVMF type, high capacity cooling fan. The BTS cover also needs replacing if the cooling fan is upgraded. The upgraded version of the BTS cover (HVCU or WCUA) allows for the better ventilation provided by the high power cooling fan.
Field Upgrade 2. Disengage and remove the cable cover support plate. 3. Remove all connecting cables to the units. Note All connecting cables must be removed in order to replace the cooling fan outer sealing gasket. 4. Detach the outer sealing gasket at the point where it covers the cable entry block, 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.
Replacing the cooling fan Removing the VMFA fan assembly 1. Remove and retain the fan assembly holding screws as follows (see Figure 6): Caution When the four fan assembly holding screws have been removed, the fan unit is only supported in the cabinet by the backplane connector. Do not let go of the fan assembly 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.
Field Upgrade 4.2 Installing the HVMF high capacity cooling fan WARNING Make sure that the power is turned OFF at the main disconnect device before working on the fan unit. Complete the following procedure to fit the HVMF fan assembly. Install the HVMF fan assembly 1. Lift the new HVMF fan assembly to the bottom of the cabinet and align the connector on the assembly with the backplane connector on the cabinet. 2. Push the assembly into the backplane connector. Do not use excessive force! 3.
Replacing the cooling fan T25 Figure 7. T10 HVMF cooling fan assembly and mounting screws Extension cables Antenna cables Power supply cable - Grounding cable, 1 pc - Transmission cables, max 8 pcs - External alarms and controls Figure 8.
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Replacing or installing new TRX units 5 Replacing or installing new TRX units A MetroSite BTS can be upgraded to EDGE by replacing 1W or 5W GSM TRX units with 5W GSM/EDGE units. Additional TRXs can also be added to a single BTS (up to four TRXs) in order to increase the BTS’s capacity or to add EDGE capability. A 5W GSM/EDGE TRX can be commissioned to operate on GSM or GSM/EDGE transmission. Note It is possible for a BTS to contain a mixture of 5W GSM and 5W GSM/EDGE TRX units.
Field Upgrade T R X 3 T R X 4 T R X 1 T R X 2 Figure 9. TRX slot order 5.1 Upgrading by replacing TRXs 5.1.1 Removing TRX units Caution Refer to the power supply requirements in Table 1 before working on the TRX units. To make it easier to remove the antenna connectors, remove the TRX units in the following order: TRX 3, 4, 1, 2 (see Figure 9). Removing TRX units 1. 32 (50) Connect your Nokia BTS Manager PC to the LMP connector on the interface unit.
Replacing or installing new TRX units 2. Block the TRX using Nokia BTS Manager (if the sector is not already locked from the BSC). In the Supervision - Equipment View window, right click on the TRX image and select the BLOCK button in the Object Properties dialogue window (see Figure 10). Figure 10. DN00187365 Issue 2-0 en Example of blocking a TRX in Nokia BTS Manager 3. Make a note of the TRX cabling. 4. Disconnect the antenna and diversity cables from the TRX units to be removed. 5.
Field Upgrade 5.1.2 Installing TRX units In order to reach and tighten the antenna connectors with a torque spanner, it is necessary to install the TRX units in the following order: TRX 4, 3, 2, 1 (see Figure 9). The master TRX is located in slot 1. Note If you are replacing a master TRX in a single TRX installation or increasing the number of TRXs, refer to Nokia MetroSite EDGE Base Station: Maintenance for more detailed information. Installing TRX units 1. Slide the unit into the appropriate slot.
Replacing or installing new TRX units 9. 5.2 If the green LED is lit on the TRX after the replacement procedure, the BTS is in service. If the LED is yellow or red, check the alarms and run the TRX test from the BSC/NMS. Upgrading capacity by adding TRXs The capacity of a single MetroSite EDGE BTS can be expanded to include up to four TRXs. For information on coverage patterns and sectoring, refer to Nokia MetroSite EDGE Base Station: Product Description.
Field Upgrade Antenna connector Diversity out Diversity in Figure 11.
Chaining Nokia MetroSite EDGE BTSs 6 Chaining Nokia MetroSite EDGE BTSs One or two Nokia MetroSite EDGE BTS cabinets can be added as slave cabinets to a master BTS, increasing the capacity to anything between five and 12 TRXs in one BCF object. Chaining is done by connecting chaining cables from the interface unit (VIFA) of the master BTS to the interface unit of the slave BTS. If a three cabinet chain is required, a further cable is used to connect the first slave to the second slave in series.
Field Upgrade 2 ve Sla 3 4 5 1 VIFA EXT EXT VIFA EXT EXT VIFA EXT EXT DN02107147 Legend: 1 2 38 (50) Connections at the VIFA interface units. A two BTS chain is also possible. A termination connector is fitted to the first (master cabinet) “EXT” connector in the chain (connector supplied in the extension cable kit). MetroSite BTS extension cable (chaining cable).
Chaining Nokia MetroSite EDGE BTSs at the other. Three different lengths of cable are available: 1, 3 and 5 metres. Master BTS cabinet, with FXC transmission unit and TRXs 1 to 4. TRX 1 is the master TRX for the chain. Slave BTS cabinet 1, with TRXs 5 to 8. Fewer TRXs are possible. A transmission unit must not be fitted. Slave BTS cabinet 2, with TRXs 9 to 12. Fewer TRXs are possible. A transmission unit must not be fitted. 3 4 5 Figure 12. 6.
Field Upgrade 5. Request a BCF lock for the site from the BSC or NMS. You can check if the site has been locked by connecting a BTS Manager laptop to the master BTS in the chain, starting BTS Manager and checking TRX PROPERTIES in the Supervision - Equipment View window (right-click with the mouse over a TRX in the window). 6. Power OFF the master BTS. Inform your Operations Manager before doing this and follow the procedures for powering down a BTS.
Commissioning for upgrade 7 Commissioning for upgrade Whenever a Nokia MetroSite Base Station installation is upgraded to GSM/EDGE or for BTS chaining it must be re-commissioned locally with Nokia BTS Manager version 3.0 or later. This includes downloading the appropriate software (CX 3.0 or later) to the master TRX from the BSC and configuring the transmission. Note To ensure that you have access to the correct software versions for the upgrade, Nokia SiteWizard version 3.
Field Upgrade 7.1 Commissioning the BTS for GSM/EDGE Commissioning the BTS for GSM/EDGE upgrade 7.2 1. Make sure that all the units and cables are installed and connected correctly. 2. Connect the laptop PC loaded with Nokia BTS Manager 3.0 to the LMP connector 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 Supervisory condition is achieved. All units must show green LEDs. 5.
Commissioning for upgrade 4. Start BTS Manager 3.0 on your laptop. 5. With BTS Manager, uncommission the master BTS by selecting COMMISSIONING | WIZARD from the main menu and selecting the ‘Undo Commissioning’ button. Note Before or during the commissioning of the BTS chain, CX 3.0 software must be loaded to the master BTS from the BSC. CX 3.0 software or later must be available at the BSC.
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Completing the upgrade 8 Completing the upgrade WARNING GROUNDING. Before refitting the cabinet cover, make sure that the grounding cable has been reconnected to the BTS cabinet. Fitting the cabinet cover and completing the upgrade DN00187365 Issue 2-0 en 1. Make sure that all the units and cables are correctly installed and connected. 2. Fit the cable cover (see Figure 13) as follows: a. Fit the cable cover support onto the hook at the end of the perforated plastic panel. b.
Field Upgrade A B Cable cover Cable cover support Figure 13. 46 (50) Routing the cables and fitting the cable cover 3. Turn ON the external power supply switch. 4. Turn ON the PSU in the BTS.
Completing the upgrade 5. Refit the cabinet cover as follows (see also Figure 14): Note If the Nokia MetroSite BTS installation was upgraded from 1W TRXs to 5W TRXs, 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 the cover to the locking rail on the chassis. Push the cover into the chassis and pull downwards to lock the hooks firmly into the rail. c.
Field Upgrade 8. Recycle any applicable material. Note In case you need to dispose of replaced units, contact Nokia Professional Services for information on recycling. An environmental data package, including disassembly instructions and a material balance document is also available via Nokia Professional Services.
Index upgrade types GSM to GSM/EDGE P 9 A adding new TRXs to a BTS antistatic wrist strap 18 35 parts required for BTS chaining upgrade 15 parts required for GSM/EDGE upgrade 15 power supply precautions 13 power supply unit types 21 preparations for upgrade 13 B R blocking a TRX 33 BTS Manager 41 removing assemblycooling fan 25 cable entry block 25 cover 17 PSU 21 TRX 32 replacing TRX 31 C chaining 37 commissioning 41 cooling fan HVMF, high capacity installing 28 removing 25 VMFA 25 28 S site, ch
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