PRACTICAL TRAINING REPORT

2007-2012

Submitted to the Engineer’s Registration Board (ERB) in Fulfillment of Engineers Registration Requirements in the Professional Engineers Category

Author: Andrew Kifua (Bsc. Electrical Eng).

Operations Group,Nokia Siemens Networks Tanzania Limited CompanyP. O. Box 6198, Dar es Salaam,Tanzania.

August 2012

1. INTRODUCTION

My name is Andrew Kifua. I am a holder of Bachelor of Science in Electrical Engineering degree (Bsc. Elec eng) (Hons) from Makerere University Kampala Uganda since 2007.

I am currently working with Nokia Siemens Networks (T) Limited, in a department of Maintenance within Operations Group. Until today, I have five years of Working experience in design, Rectifier installation and connection to external circuits, commissioning using the front panel, Trouble shooting and locating faults and removing and installing rectifier modules, operations, inspection, maintenance and trouble shooting of simple problems and their countermeasures of generator

The aim of this submission is to present to Engineer’s Registration Board of Tanzania (ERB) my detailed report for professional engagement since my graduation in July, 2007.

My report consist tasks performed during my employment at Vodacom Tanzania Ltd and then Nokia Siemens Networks Ltd .First I worked with Vodacom Tanzania Ltd as BSS Engineer from 1st day of November, 2007 to 28th of March 2011. From 1st day of March 2011 to date, I work with NSN as field Operations Engineer.

DEDICATION

This professional report is dedicated with love to my wife Ritha; she has been very supportive, cooperative and understanding. I also extend my dedication to Eric, Elizabeth and Erica, they have taught me to be ha

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SUMMARY OF ACTIVITIES

PERIO

D

Employer, Position and Details

of Activity

Durati

on in

Month

s

SUPERVISING

ENGINEER

NAME SIGNATUR

E

Employer: Maintenance, Operation Group, NSN (T) Ltd.

March

2011

to

Date

Position: Field Operations

Engineer

ACTIVITIES:

1. To make sure that there is pre

installation warnings and checks.

2. To make sure that there is pre

power up check list

3. Installing and commissioning

Intergy Access Power Systems

using the SM 65 as the

Supervisory.

4. Installation and connection to

external circuits.

5. Provide consulting to re-

engineer and strengthen

business processes.

6. Commissioning using the front

panel

17

Peng.

Andrew

Lupembe

4

7. Troubleshooting and locating

faults and removing and

installing rectifier modules

8. Testing the alarms at the remote

location

9. Monitoring and Replacing

Transient Protective Devices

10.Compile reports for management.

11.Site survey and Load Dimensioning

PERIO

D

Employer, Position and Details

of Activity

Durati

on in

Month

s

SUPERVISING

ENGINEER

NAME SIGNATUR

E

Employer, Maintenance Operation Group, Vodacom (T)

Ltd.

Position: BSS/Power Engineer

ACTIVITIES:

1. To coordinate safety rules during

the operation of generator.

2. To coordinate the installation,

and commissioning of the

generator

3. To supervise the major servicing

parts of generator.

39

Peng.

Stephen

Kingu

5

Novem

ber

2007

to

Februar

y 2011

4. Installation of instruments and

alarm devices.

5. To support Cranking operation

first in accordance with the

procedure required in order to

distribute Oil to all of the parts.

6. Manage the reactive

maintenance process to

minimize systems downtime.

7. Planning, Designing and

implementation of information

security strategies.

8. Inspection before starting

generator

9. Checking the alarm devices

10.To prepare the list of periodic

inspections of the generator

11.To prepare the list of spare parts

which are needed to be replaced

during periodic inspections.

12.To supervise troubleshooting.

13.Planning for installation of new

batteries and battery

replacement.

14.To perform Battery discharge

test during preventive

maintenance

15.To ensure all AC connections are

made on the AC distribution

6

panel.

16.Manage both hardware and

software installation and

upgrades for both network

elements and management

systems

17.Effective management of human

and financial resources for

continuous performance and

achievement of key performance

objectives

18.Installation, operations and

maintain BSS & Transmission

equipment in accordance to

valid procedures, standards and

specifications

19.Inspect material and equipment record,

implement and verify corrective action as

and when required, Inspect material and

equipment.

20.Liaise with TTCL regarding

leased links faults as and when

required

21.Perform routine and Preventive

maintenance on transmission

and BSS systems and parts.

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22.Perform planned works

according to procedures.

23.Assist other staff with technical

matters and perform

maintenance functions as and

when required.

24.Record and maintain tools and

test equipment

25.Keep and update site records,

diaries and files.

26.Liaise with subcontractors with

regard to site generators refuels

and site power maintenance

DETAILS OF PROFFESSIONAL ACTIVITIES

TRAININGS ATTENDED

I have been working with Vodacom Tanzania Ltd for 4 years and during my stay at Vodacom, I have attended various training in Technical and Project Management. Apart from that I am anticipating to hold Certified Public Accountant CPA (T) qualification in November 2012 which is issued by National board of Accountants and Auditors NBAA Tanzania.

Project ManagementI have been Regional engineer for Vodacom Tanzania LTD for 4 years, during this position; I had been managing all engineering projects for Vodacom in Mtwara and Lindi

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regions. Some of engineering projects include installation and commissioning of power, RF and Transmission systems. All of these projects had brought necessary engineering skills in hand with project management skills.

In addition to that I have come across with the different techniques which are of great importance in appraisal of projects, costs benefit analysis, project management skills and financial management during my CPA study.

Technical Training.

In technical training, I have attended various trainings in BSS and Power Systems including upgrade of rectifiers, installations of generators, batteries technology, and Programmable logic control (PLC), TN/TS-1500 Inverter Technology and GT305 Power systems.

In addition to that, I had attended First Aid, health and safety hazards prevention and control trainings.

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OPERATION AND MAINTENANCE SYSTEMS PROJECTS

PLANNING, INSTALLATION AND COMMISSIONING

PROJECT TITLE: INSTALLATION OF DIESEL POWER GENERATOR. PROJECT SCOPE: This will involve planning for power requirement for the specific sites.

Most of Vodacom sites are powered by 30KVA Generators apart from the BSC which needs a 60KVA Generator

PROJECT COST: 240,000 US

EXPERIENCE GAINED AS IMPLEMENTATION ENGINEER

-The schedule for maintenance of generator should be designed to enhance the equipment availability

-All jobs must be planned and performed in accordance with existing safety regulation.

-Site plan for Back up battery of 150Ah capacity of 4 battery bank are of great importance in case of failure of self starting of generator. The standard discharging for battery is 3 hours

-Testing of power systems and power alarms

-

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PROJECT TITLE: INSTALLATION OF MOTOROLA BTS SYSTEMS FOR VODACOM (T) LTD

1.1.1.1 PROJECT SCOPE: The scope of the project was to plan and analyze all power requirements and location. Also the scope included the installation, commissioning and acceptance testing of power supplies and power supply units.

1.1.1.2 PROJECT COST: The cost for the entire project was Euro 1,000,000.00

1.1.1.3 EXPERIENCE GAINED AS AN IMPLEMENTATION ENGINEER

The following experienced were gained during the project.-Understanding that BTS can operate from either -48/60 V dc (Positive earth), +27 V dc (negative earth) or wide input, nominal 120/240 V, ac single phase supplies-Power distribution assembly (PDA), mounted on the left side of the top panel assembly. This assembly provides the connectors for ac or dc power input and contains the interface panel for customer communications connectors.-The sectorized Universal Receiver Front End (SURF 2) module is mounted at rear of the top panel assembly. The module provides amplification and signal conditioning functions for incoming RX signals.-TX blocks, up to 6 Tx blocks can be fitted in the basket in the top panel. There are 3 types of TX block available for the Horizon II Macro: Duplexer (DUP), Hybrid combiner unit (HCU) and dual hybrid combiner unit (DHU).- Site expansion board,an optional module that is mounted in the right side of the top panel assembly. The module provides fibre optic connections to expansion cabinets. -Power supply unit (PSU). The PSUs are load sharing. In a fully equipped cabinet, a fourth PSU provides 3+1 redundancy. An optional hold up battery module (under development) may be fitted to ac supply BTS variants instead of the fourth PSU. The PSUs contain integral cooling fans.-Circuit breaker card (CBC). The CBC provides circuit protection and the facility to manually isolate individual modules with the Horizon II Macro cabinet.-Alarm module, this handles all cabinet alarm I/O signals and provides current sensing for external site alarms (via the PIX connectors)-Understanding the Horizon II site controller unit (HIISC), this provides the site processing functions for the BTS. HIISC which incorporates integrated NIU, Integrated FMUX, E1 support, Enhanced E1 redundancy and increased removable flash media memory-Understanding the Compact Transceiver Unit 2 (CTU 2). It has the following features, Single or double density mode in Horizon II macro cabinet. Single density mode provides single carrier GSM TX capability and it has high power of 63W.

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Double density mode provides 2 carrier GSM TX capability (both carriers must be in the same sector) and normal power of 20 W. -Battery management alarm and control card (BMAC), the BMAC is a separate component of the PDU and provides the control and alarm facilities-For the outdoor enclosure contains a cage to accommodate optional internal back up batteries. One string of two 12 V monoblocs is installed in the compartment to provide a limited backup +24 V dc supply in the event of failure of the ac supply. The backup batteries can power the equipment in the outdoor enclosure under full load conditions for a minimum of between four and eight minutes, depending on the cabinet installed and configuration.-Low voltage Disconnect (LVD),The PDU incorporates two LVD contactors. The battery LVD contactor supplies dc power from the batteries to the indoor cabinet, and the comms LVD contactor supplies dc power from the batteries to the comm. Equipment. The batteries are only reconnected to the equipment when ac power is restored and the batteries are recharged to a pre determined level.

.

1.1.2 INSTALLATION OF BASE STATION SYSTEM CONTROL ( BSC)

1.1.2.1 PROJECT TITLE : INSTALLATION OF MOTOROLA BSC AT VODACOM(T) LTD

1.1.2.2 PROJECT SCOPE: The scope of the project was to install BSC in order to provide the overall control of the BSS. It controls and manages the associated BTSs and interfaces with the operations and maintenance centre (OMC) and the Mobile Switching Services Centre (MSC).

1.1.2.3 PROJECT COST: The cost for the project was USD 1,200,000

1.1.2.4 EXPERIENCE GAINED AS AN IMPLEMENTATION ENGINEER

- I understand that the BSC can be powered by a positive earth (-48 V or -60 V) or negative earth (+27 V) supply.

- The top section of the cabinet contains the power Distribution Unit (PDU) which consists of an alarm board and a dc circuit breaker panel .The PDU distributes dc power throughout the cabinet and provides an alarm interface.

- The nominal power consumption for the cabinet 1500W and the maximum power consumption is 2400W.

- The BSC cabinet environmental limits when it is operating the temperature should be between -5’c to +45’c under humidity 5% to 95% non condensing and if the

12

BSC is under storage, the temperature should be -45’c to +70’c and the humidity is 8% to 100% non condensing.

- The weight of the BSC when it unequipped is 136Kg and when fully equipped is 230Kg.

- Distribution Alarm Board (DAB2),it distributes +27 V dc to the six fans within the cabinet via 6 fuses. It also provides an alarming function for each of the fuses.

- S1&S2 switch banks; Switches S1 and S2 each consist of a bank of 4 switches. In the BSC cabinet, all eight switches must be set to the OFF position.

- The DAB2 communicates with the master processor card via the serial bus link. The master GPROC always initiates communication, in which all modules respond with status reports. The serial bus circuitry is powered by the same +5 V that powers each digital card shelf

- The DAB2 board takes a direct feed from the V in busbar (DAB2 input J1). In line cartridge fuse F27 is fitted for protection. This direct feed can only be used if the cabinet has a + 27 V dc input. If the cabinet is powered from a -48/60 V dc supply, the DAB2 automatically switches from being powered by the + 27V dc from the busbar to being powered from a + 27 V dc feed from lower card cage, via the fan cable loom.

-The dimensions of the BSC are as follows

Dimension Value

Height (including feedthrough tubes) 2094mm

Height (excluding feedthrough tubes) 2064mm

Width 715mm

Depth (include door) 416mm

Depth (Exclude door) 395mm

-Able to perform post checks to ensure everything is back to normal after new installation of the BSC

INSTALLATION OF NSN FLEXI WBTS (3G) TO VODACOM (T) LTD.

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1.1.2.5 PROJECT TITLE: IMPLENTATION OF HSDPA TECHNOLOGY FOR VODACOM (T) LTD.

1.1.2.6 PROJECT SCOPE: .

1.1.2.7 PROJECT COST: USD 247,000

1.1.2.8 EXPERIENCE GAINED AS AN IMPLEMENTATION ENGINEER

-Understanding of RF module. The RF module is a standalone fully operational transceiver unit. It hosts the RF functionality and provides control and power supply to the Flexi Antenna line. Radio related signal processing is also performed in the RF module.-The RF module uses nominal 48 V DC for internal power supply, the maximum power consumption for version A is 770W and for version B is 420 W. The typical maximum power consumption for version A is 580 W and for version B is 310 W. The input voltage range is between 40.5 V and 57 V DC-I have to make sure that the mains power breaker is off, and that the cabinet is properly earthed (grounded), before removing any connections from the cabinet.-The table below lists the dimensions and weight for the RF module:Table Dimensions and weight of the RF module

Property Value

Height 133mm

Width 447mm

Depth without covers 422mm

Depth with covers 560mm

Weight 21 Kg

The RF module is equipped with the following interfaces: Front panel connectors, the connectors on the front panel of the RF module, their types and purposes are listed in the table below:

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Table: RF module front panel connectors, connector types and purposes

Connector Connector type Purpose

Power Supply 1*2-pin multibeam connector

Power delivery

Grounding Screw terminal Grounding

Operational state visual indication

2*tri-colour LED Operational state and fan status indication

Antenna connectors 4*7/16 type, female RF signal interface to antenna (s)

Optical Interface 1*duplex LC connector Control interface to the system module

-Understanding System module operation and its main blocks. The WCDMA system module hosts the telecom control, system operation and maintenance, baseband application, transmission and power distribution functionality. The system module provides the BTS external interfaces towards RNC and other external devices.-The power supply of the system module is described in the table below.Table Input voltage and power consumption of the system module

Property Value

Nominal supply voltage 48 V DC

Average Power consumption 60W (FSMA)90 W (FSAMB)

Input voltage range 40.5-57V DC

-There is a danger of lethal voltages, we have to make sure that the mains power breaker is off, and that the cabinet is properly earthed (grounded), before removing any connections from the cabinet.

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INSTALLATIONS OF NSN RNC FOR VODACOM (T) LTD

1.1.2.9 PROJECT TITLE: NSN RNC 2600 IMPLEMENTAION FOR VODACOM (T) LTD.

1.1.2.10 PROJECT SCOPE: The RNC is of great importance in resource management, Telecom, Transmission and transport,O&M, Interface to NetAct, user interface and measurements and statistics

1.1.2.11 PROJECT COST: USD 100,000

1.1.2.12 EXPERIENCE GAINED AS AN IMPLEMENTATION ENGINEER-Power distribution system for NSN RNC, it distributes the -48V/-60V power from the rectifiers or batteries to the equipment inside RNC cabinets.-Power distribution system consists of CPD120-A panel at the top of each cabinet and PD30 Plug in units in each sub racks.-PD 30 controls the cooling equipment of its own sub rack on the basis of messages sent by the OMU-Timing and synchronization system, it receives an input timing signal from upper network level and adjusts its local oscillator to long time mean value and delivers this synchronized timing signal as system timing to all plug in units in the same sub rack and TBUF-Timing Buffer unit is a clock buffer; it distributes the synchronization signals generated by the TSS3s to plug in units not directly fed by the TSS3s. It collects the alarms from the PIUS in the same sub rack and transfers them further to the HMS master net, which brings the alarms to the appropriate OMU-Identifying sub racks, connectors and cables.-Confirmation of RNC protection switch cables

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PROJECT TITLE: INSTALLATION OF SK SERIES PURE SINE WAVE INVERTER

POJECT SCOPE: This power inverter series is one of the most advanced lines of mobile AC power systems. To get the most effective power inverter, it must be installed and used properly.

PROJECT COST: 148,000 US

EXPERIENCE GAINED AS AN IMPLEMENTATION ENGINEER-Before installing the inverter, I need to ensure the main switch must be OFF-Before using the remote unit, I need to ensure the main switch must be REMOTEInput level: display input voltages

LED status DC 12V DC 24V DC 48V

Red slow Blink 10.3-10.6 20.5-21.2 40.8-42.4

RED 10.6-11.0 21.2-21.8 42.4-43.5

ORANGE 11.0-12.1 21.8-24.1 43.5-48.1

GREEN 12.1-14.2 24.1-28.6 48.1-56.3

ORANGE Blink 14.2-15.0 28.6-30.0 56.3-59.6

OVER RED Blink Above 15.0 Above 30.0 Above 59.6

AC Frequency: Selected by S4 (Dip switch)

Frequency S4

50Hz OFF

60Hz ON

-Power saving mode is adjustable and set by the dip switches,S1,S2 and S3 on the front panel. Example, with the watt setting at 15 W, a 15W above load will make the inverter operate normally, a 15W below load will enter into the power saving mode.DC input Terminal

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-connect DC input terminal to 12V/24V/48V battery or the other power sources. + represents positive and – represents negative. Reverse polarity connection will blow the internal fuse and may damage the inverter permanently.-the inverter should be grounded to avoid an electrical hazard.

Model Minimum DC input voltage Maximum DC input voltage

12V 10.5 15.0

24V 21.0 30.0

48V 42.0 60.0

-The power inverter should be installed in an environment that meets the following requirements: Dry- do not allow water to drip on or enter the inverter Cool-Ambient air temperature should be between 0’c and 40’c, the cooler the better. Safe-Do not install the inverter in a battery compartment or other areas where flammable

fumes may exist, such as fuel storage areas or engine compartments. Ventilated-Keep the inverter a distance (as least 1 inch) away from surrounding things. Dust-do not install the inverter in a dusty environment. The dust can be inhaled into the

unit when cooling fan is working. Close to batteries-Avoid excessive cable lengths. Do not install the inverter in the same

compartment as batteries. It is better to use the recommended wire lengths and sizes.-DC wiring connections, we have to follow this procedure to connect the battery cables to DC input terminals of the inverter. The cables should be as short as possible (less than 10 feet/ 3 meters ideally) an large enough to handle the required current in accordance with electrical codes or regulations applicable to the installation.-Cables that are not an adequate gauge (too narrow) or too long will deteriorate inverter performance such as poor surge capability and frequent low input voltage warnings and shutdowns.-These low input voltage warnings are due to DC voltage drop across the cables from the inverter to batteries. The longer and narrower the cables, the greater the voltage drop. Increasing DC cable size helps to improve the situation.-Neutral grounding, the neutral conductor of the AC output circuit of the inverter is automatically connected to the safety ground during inverter operation. This conforms to National electrical code requirements that separately derived from AC sources (such as inverters and generators) which have their neutral conductors tied to ground in the same way as the neutral conductors from the utility tied to ground at the AC breaker panel.-To operate the power inverter, use ON/OFF switch on the front panel to turn the power on. Then the power inverter is ready to deliver AC power to the loads.

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PROJECT TITLE: INSTALLATION OF FP 150 DC POWER SYSTEMS (RECTIFIERS AND BATTERIES)

PROJECT SCOPE: The system contains smartpack rectifier controller, a low voltage Battery disconnect switch (LVBD), a 3-pole AC input circuit breaker (CB), 2Batteries CBs and a single DC load CB

PROJECT COST: 200,000 US DOLLAR

EXPERIENCE GAINED AS IMPLEMENTATION ENGINEER-The FP 150 is available in 3-phase and 1-phase versions. Therefore the AC input must be specified at order so that the system can be configured correctly.-The configuration software powersuite is used to configure and monitor the FP150 using a notebook computer. The PC connects to smartpack through the USB port on the front panel.-Alarm relays, the FP 150 has 6 alarm relay outputs. These are potential free contacts that can be used for remote monitoring of the system alarms.-The control and monitoring function of the FP150 Power supply system is performed by the smartpack. All system parameters can be accessed through this controller. This can be done through the 2 line LCD display and keypad or with notebook PC using powersuite configuration software.-The LVBD is included to protect the batteries from a very deep discharge by disconnecting the load from the battery after the battery has discharged to a pre-programmed voltage level. The LVBD consists of high power contactor that is controlled by the smartpack.-AC connections, connect the following, connect the 3 phase wires, neutral and AC Earth (PE) to the labeled terminal blocks at the rear of the distribution shelf.-DC connections (Figure 8), connect the following, Building Earth (TE), connect DC load cables to the labeled load feed and return busbars, Alarm and site monitoring cables to alarm extension card (Figure 9 for pin out of PCB), Battery, symmetry and temperature sensor cables (Figure 10 )-Routine maintenance on the power system and batteries should be performed on a regular basis ( every 6 months is recommended). During such maintenance the system should be inspected for loose connections, signs of corrosion on the batteries, signs of overheating of cable connections-All system voltage and current reading should be verified, and the current sharing between rectifier modules should be checked.The standard checklist should be prepared and completed during maintenance.Figure 8: Lay out of the distribution shelf

MAINTENANCE OF STANDBY DIESEL POWER GENERATOR

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The maintenance of a DG must not be limited to merely repairing broken down machinery. A suitable maintenance program should be designed to enhance equipment availability while keeping interference to the normal operation to a minimum. The main points to consider are: safety; all jobs must be planned and performed in accordance with existing safety regulation. Down time; the equipment should be available for normal operation as much as possible. Thus the main goals for maintenance are to increase equipment availability while reducing down time. Backup battery; we usually use backup battery for our systems (ZANTEL SYSTEM) for outdoor system we use four batteries of 150Ah capacity, for these one will take for about 3hrs before the site go

Commissioning: I used to do commissioning at various sites, checking power if is available at the meterand at the automatic voltage regulator (AVR) by measuring input power and output power and also checking all fuses and also if power is regulated by checking on AVR LCD, if there is utility power, after that we check if there is power available at the Automatic Transfer System (ATS) by checking contactor input and output of the input contactor and the same for the output contactor. Then, we switch on DG and check if it gives out power. This is done after connecting all alarm cables inside the DG and also inside the ATS and then testing alarms by collaboration with NOC and confirming by checking on the laptop. Most of these tasks I was doing by myself.

The major achievement or gain in this project was increasing knowledge on electrical installations and commissioning, learn new equipment which I had never faced them before such as Huawei BTS 3012AE and 3012, it was my first time to implement the whole tower starting from installation to commissioning.

A standby diesel power generator is mounted on a common concrete base frame. Flexible connections are used at external connections thus providing uniform contact with the foundation. Standby Generator functions when the voltage in the utility power (TANESCO) drops below a certain pre set value (adjusted with relay k3 in control panel an alarm ‘GRID VOLTAGE LOW’ is received and this can be adjusted to normal level by using automatic voltage regulator which has very huge range of regulation of volt ranging from 180-310 on which can be changed accordingly. If voltage drops further (pre-set value adjusted with relay in control panel the network breaker trips. Immediately after the trip ‘auto start selected’ where by all DG we usually select this button, DG breaker will close and the standby power generator starts automatically. Automatic start is preselected on control panel. Control panel consist of synchronizing meters, switches, lamps, alarms and relays. The thermometers, pressure gauges and load are read and recorded because all values are more or less dependent on the load situation. The values are then compared to previous values at corresponding load.

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Figure 9: Battery monitoring card connections

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Figure 10: Alarm extension card connections

After working in Information and Communication Technology industry for more than 7 years, the following is the experience gained.

-Installation, commissioning and testing of various computer systems.

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-Planning for various systems requirements in terms of floor space, LAN connectivity, power and cooling, etc.-Planning for software/System upgrade while minimizing Network Outage-Extensive knowledge to Window, UNIX and Linux Operating Systems.-General knowledge of Transmission system-General knowledge of GSM technology-Managed Service processes and controls-Project Management-Participate in Contract Evaluation and Negotiation with Contractors

Taking into considerations of the knowledge, skills and experience gained for over seven years

under my carrier, I believe that now I deserve to be qualified candidate for registration by ERB

as Professional Engineer.

This document was prepared by:

No. FULL NAME DATE SIGNATURE

01 ANDREW KIFUA

And endorsed by the following Professional Engineers

No. FULL NAME DATE SIGNATURE

01 Peng. Stephen Kingu

02 Peng. Andrew Lupembe

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3 APPENDICES

ERB Engineers Registration BoardFSMA Flexi system module 1 FSPFSMB Flexi system module 3 FSPFPAA Flexi power ac/dc sub module 230vFEng EngineerIFM Institute of Finance ManagementOAM Operation and MaintenanceNMC Network Management CentreOMC-R Operation and Maintenance Centre RadioRAN Radio Access NetworkATE Association for Tanzania EmployersOSS Operation Support SystemsGPRS General Packet Radio ServiceUMTS Universal Mobile Telecommunication SystemUTRAN Universal Terrestrial Radio Access NetworkBSC Base Station ControllerMGW Media GatewayMSS Mobile Switching ServerTCP/IP Transport Control Protocol/Internet ProtocolXOT X25 over TCP/IPGSR GSM Software ReleaseTX TransmissionOML Operation and Maintenance LinkMAC Media Access ControleTOM Enhanced Telecom Operation MapLAN Local Area NetworkGSM Global Systems for Mobile communicationCBC Cell Broadcast CentreDTE Data Terminal EquipmentMS Managed Services

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4 ANNEX

1. Netact OSS 4.22. Planning for Cell Broadcast DTE Addresses3. CBC acceptance test form4. Planning DTE addresses for Dar es Salaam XOT routers5. Troubleshooting rlogin problems from XOT routers6. OMC-R System Architecture7. Customization of Users Commands in OMC-R8. Learning Shell Scripting9. OMCR System Administration – omc_db_maint to create table space for statistics10. Final acceptance Document – OMC-ST installation, commissioning and Integration11. Tax invoice 4CIT Software Solutions (Pty) Ltd for Sunray Project12. Vodacom Network Change Process and Procedure13. Developing a new scope of work for Phase12 sites14. Sari Site antenna Configuration15. Occupational Health and Safety Act, 2003 Section 95(2)(1)-Plant & Machinery

Supervisor Appointment

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