abdul barek road

Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road

PAGE: 1

Nokia Siemens Networks, All rights reserved. Version: 1.4

TECHNICAL SITE SURVEY REPORT

Axiata (Bangladesh) Ltd [AKTEL]

Bangladesh

NSN PO: 01

SITE NAME: Abdul Barek Road

SITE ID: CTG0015

SITE ADDRESS: Hazi Nurul Alam, S/o: late Abdul Wadud, Nur Bhaban, Abdul Barek Road, P.S:

Pahartoli, Chittagong.

DATE OF SURVEY 25th March 2010

NMC CONTACT +88-01817181186

PARTICIPANT

NAME COMPANY CONTACT E-Mail Signature

Md. Nahidul Alam AXIATA 01819310065 [email protected]

Md. Faruk NSN 01732268710 [email protected]

Md. Ismail Hossain CEBL 01922278479 [email protected]

Approved By Axiata:

Name:

Signature:

Date:

Approved By NSN:

Name:

Signature:

Date:


PAGE: 2


TABLE OF CONTENTS:

A. BTS swap summary report ……………………………………………………………………………………………………..3

B. Material requisition ………………………………………………………………………………………………………………..4

C. Standard Tools List For BTS Swap (Indoor) ……………………………………………………………………………..5

1.1. PURPOSE.....................................................................................................................................6

1.2. SCOPE .........................................................................................................................................6

1.3. SITE INFORMATION ....................................................................................................................6

1.4 Equipment Transportation and Handling……………………………………………………………………..…………6

1.5 BTS Room.....................................................................................................................................6

2. Network architecture from BTS to MSC with the location & transmission media ....................... 7

2.1 Type of transmission for existing BTS...........................................................................................7

3. Existing BTS Information...............................................................................................................8

3.1. Measurement for proposed BTS.........................................................................……………………...8

3.2. Antenna and Feeder cable Configuration....................................................................................9

3.3. Cable Tray....................................................................................................................................9

4. Power system details....................................................................................................................10

4.1. Details of existing DC power (Rectifier) supply system.............................................................10

4.2. Details of battery backup...........................................................................................................10

5. Space Requirements for NSN Equipment.....................................................................................11

5.1. Power requirements............................................................................................................11

5.2. Upcoming Power system (Rectifier) details...............................................................................11

6. Existing Deficiency: ................................................................................................................12

7. Indoor and outdoor Photograph................................................................................................13-16

8. Swap instruction...........................................................................................................................17

9. Observation & Recommendation................................................................................................17


PAGE: 3


A. BTS swap summary report:

BTS details: ERICSSON 900 MHz 1800 MHz

Existing site configuration (Base Rack 1) 4/4/4 N/A

Existing site configuration (Base Rack 2) N/A N/A



Planned site configuration (NSN) (Base Rack 1) 4/4/4 N/A

Planned site configuration (NSN) (Base Rack 2) N/A N/A



Action Point Summery Responsibility

Total no. of existing transmission link (Live link) 01 AXB

Hot swap is required No( Cold Swap) NSN

Difficulties in Equipment lifting NO NSN

House owner objection at night work NO Axiata

Indoor grounding issue NO Axiata

Outdoor grounding issue No Axiata

Maintenance time for swap BTS Based on agreed swap methodology Axiata

Traffic down time of power source change MW links Based on agreed swap methodology Axiata/NSN

Physical damage of any feeder cable NO Axiata

Confirmation of feeder marking OK Axiata

Lighting / Cooling isn’t proper NO Axiata

Immediate equipment transfer required after swap as no space is available at BTS room

NO NSN

Feeder Cable marking OK AXB/NSN

AXB ASSISTENCE:

1. PCM information data is required----AXB

2. Site access key is required----AXB

3. Physical/Logical parameter is required---- AXB

4. Emergency light is required —AXB.


PAGE: 4


B. Material requisition

SL No Item description Quantity Base Unit Responsibility

1 PCM & Alarm DDF(10M&10M) 1 Pc NSN

2 Battery Rack N/A Pcs NSN

3 AC Power Cable (MDB To Rectifier) 10 Mtr NSN

4 50 rm Blue DC Power Cable (Battery loop & Rectifier Conn.)

17 Mtr NSN

5 50 rm Black DC Power Cable (Battery loop & Rectifier Conn.)

17 Mtr NSN

6 Circuit Breaker in Rectifier with rating(63A) 2 Pcs NSN

7 Circuit Breaker in DCDB(6A) 3 Pcs NSN

8 Circuit Breaker in MDB(40A) 1 Pc NSN

9 Grounding Cable 44 Mtr NSN

10 Feeder Jumper Cable (3 m) N/A Pcs NSN

11 Feeder Jumper Cable (4m) N/A pcs NSN

12 Feeder Jumper Cable (6m) 6 Pcs NSN

13 PCM Cable (120 Ώ) 10m(4Pair) 1 Pc NSN

14 BTS Ext. Alarm Cable(10m) 1 Pc NSN

15 DCDB 1 Pc NSN

16 Ladder No Need Mtr AXB

17 Cable lux 25 rm 15 Pcs NSN

18 Cable lux 6 rm 15 pcs NSN

19 Cable lux 6 rm 10 pcs NSN

20 Cable Tie 4”, 6”, 10” 9 packets NSN

21 Cable Tie 12” 3 packets NSN

22 FCIA Cabinet(Capacity 24 TRX) 1 Pc NSN

23 Required TRX 12 Pcs NSN

24 Hit Sink Tube Black & Blue 12 Pcs NSN

25 White Channel 3” No Need Mtr NSN

26 25 rm Blue DC Power Cable (RBS & Rectifier Conn.) 12 Mtr NSN

27 25 rm Black DC Power Cable (RBS & Rectifier Conn.) 12 Mtr NSN


PAGE: 5


C. Standard Tools List For BTS Swap (Indoor)

TOOLS REQUIRED FOR BTS INSTALLATION Brand Importance Remarks

1 Site Master Standard Major

2 Digital Camera Standard Major

3 Digital Multi Meter Standard Major

4 Heat Gun Standard Major

5 Vacuum cleaner Standard Major

6 Krone puncher Standard Major

7 Water Level Meter Standard Major

8 Measuring Tape Standard Major

9 SPANNER:- 6-8,10-11,12-13,14-15,16-17,18-19,20-22,24-26,32-36. Standard Major

10 TIE CUTTER Standard Major

11 CABLE CUTTER Standard Major

12 KNIFE Standard Major

13 SCREW DRIVER SET Standard Major

14 NOTCH PLUS Standard Major

15 CUTTING PLUS Standard Major

16 COMPUS Standard Major

17 SLIDING Wrench Standard Major

18 Allen KEYS(FULL SET) Standard Major

19 HAMMER Standard Major

20 Torque Wrench (FULL SET) Standard Major

21 FILE Standard Major

22 HACKSAW Standard Major

23 Drill Machine with Hammering & Iron Bit Standard Major

24 T10 Standard Major



27 Crimping tools set for cable lugs Standard Major

28 Soldering Iron Standard Major

29 Cable Stripper Standard Major

30 Earth Tester Standard Minor

31 Multi Plug with extension cable Standard Major

32 LAN RJ45 puncher Standard Major

33 Tester, Scissor, Marker Pen etc. Standard Major

34 Anti static-wrist strap Standard Major `

35 Feeder Connector Making tool Standard Major

36 Flashlight/ Necessary Lighting arrangement Standard Major

37 Socket Wrench Set Standard Major

38 Protective gloves Standard Major

39 Ladder Standard Major


PAGE: 6


1.1 Purpose: This document describes the present conditions on the site at the time of the survey date and defines the needed changes.

1.2 Scope: This report covers only the Flexi BTS network equipments and power system.

1.3 Site information:

1.4 Equipment Transportation and Handling

Roads to the site suitable for transportation Yes No

Equipment easy access at site Yes No

Room available for equipments delivery/ storage Yes No

BTS Access Stairs Goods Lift

Others

Unpacking can be done inside Yes No

Remarks:

1.5 BTS room

Is there a raised floor? Yes No

Raised floor dimensions Length: cm Width: CM

Lighting requirements: Yes No

All the light working properly

Yes No

Emergency light available Yes No

Fire fighting system available

Yes No

Remarks: Emergency light is required for swap night.

GPS Co-ordinates N: 22.35872 E: 091.78765

Site Location: Abdul Barek Road, P.S: Pahartoli, Chittagong.

Building type: 4 Stored

Existing type of site with tower height (m):

GF: GFRT:

Rooftop Others:

Building + Tower height (m) 16+6=22m

Property Owner: +88

Security guard available: Yes No Yes

Keys and permits from: Local Key is needed and Permission is taken

from Regional Office (Aktel), Akteruzzaman center, Chittagong

+88 01

Other contact persons: +88 01

Non - Working hour restrictions: Yes No

Remarks:


PAGE: 7


2. Network architecture from BTS to MSC with the location & transmission media:

2.1. Type of transmission for existing BTS.

Optical fiber multiplexer Microwave radio others……………………

Transmission for BTS Base Rack 1,900/1800 Base Rack 2, 900/1800 Base Rack 3, 900/1800 Base Rack 4, 900/1800

Manufacturer Alcatel-1

Capacity (Terminated in DDF)

16E1

Capacity Available 15E1

Interface (120/75Ω) 120 Ohm

E1 with Site name for BTS PCM related

DDF

1st E1: Abdul Barek Road-

Sarai para 1

st E1: 1

st E1: 1

st E1:

2nd E1: 2nd

E1: 2nd

E1: 2nd

E1:

3rd

E1: 3rd

E1: 3rd

E1: 3rd

E1:

4th

E1: 4th

E1: 4th

E1: 4th

E1:

5th

E1: 5th

E1: 5th

E1: 5th

E1:

6th

E1: 6th

E1: 6th

E1: 6th

E1:

7th

E1: 7th

E1: 7th

E1: 7th

E1:

8th

E1: 8th

E1: 8th

E1: 8th

E1:

Remarks

Proper marking on Transmission equipments Yes No Others

Number Of Existing Transmission Links (Only Live links) 1

Traffic down time of power source change MW links Based on agreed swap methodology

MSC ID: CM14

Location:

Akteruzzaman

center

MSC ID:CM14

Location:

Akteruzzaman

center

BSC ID: CB47

Location:

MW with

Monsurabad

MW with

South Pahartoli

MW with

Pahartoli

MW with

Saraipara

BTS With

Abdul Barek

Road


PAGE: 8


3. Existing BTS Information

Manufacturer BTS type/ Model Serial Number Configuration BTS Dimension (H x D x W)mm

Power Consumption

Comments (mention the Base rack)

Ericsson RBS 2216 /900 A535008173 4/4/4 950x520x600 +24V/250A Base rack-1

Ericsson/ Huawei/ Alcatel

………..…….……900

………………….1800


………..…….……900

………………….1800


………..……….…900

…………….……1800

3.1. Measurement for proposed BTS:

(All cable measurement must be through cable ladder)

BTS 900 BTS 900/ 1800 BTS 900/ 1800 BTS 900/ 1800

Ladder available above the proposed BTS cabinet: Yes No Yes No Yes No Yes No

Indoor feeder connector to Proposed BTS length : 6M

Length from GB to proposed BTS: 12M

Length from proposed BTS to Rectifier: 12M

Proposed DDF to BTS length: 10M

Length of GB to proposed DDF: 10M

Distance between transmission existing DDF to proposed DDF:

10M

Distance between Alarm DDF to Proposed BTS: 10M

Remarks:


PAGE: 9


3.2. Antenna and Feeder cable Configuration:

Description Antenna type

Antenna height

(m)

Azimuth (Magnetic

North)

Tilt Feeder Cable size

Indoor Jumper

cable size

Indoor Jumper cable length

Cable damaged

Labeling

Sector 1, 900 Single Band 23m 80º 6º 7/8” ¼” 5m NO OK

Sector 2, 900 Single Band 23m 180º 6º 7/8” ¼” 5m NO OK

Sector 3, 900 Single Band 23m 280º 6 º 7/8” ¼” 5m NO OK

Sector 1, 900 extra

N/A N/A N/A N/A N/A N/A N/A N/A N/A

Sector 2, 900 extra


Sector 3, 900 extra


Sector 1, 1800 N/A N/A N/A N/A N/A N/A N/A N/A N/A



Sector 1,1800 extra


Sector 2,1800 extra


Sector 3,1800 extra


Remarks:

(Mention required indoor jumper cable length for new BTS)

6 Pcs 6m 1/2" jumper cable need for new Flexi BTS (900)

3.3. Cable Tray:

Re- use the existing cable tray Yes No

Remarks:


PAGE: 10


4. Power system details

Incoming AC mains Phases: 3 Φ MCB rating: 63 A

Spare circuit breaker in MDB (3 Φ) No

Required circuit breaker in MDB 40 A-1 Pc

Main grounding Yes No

Generator Available: Yes No

Remarks

4.1. Details of existing DC power (Rectifier) supply system

Rectifier 1 Rectifier 2 Rectifier 3

Manufacturer Ericsson PBC-6500

DC output voltage (V) +24V,-48V

No. of installed Module 05

Option available for additional module

11

Module rating 1200 W

Existing output current (A) [From display]

No Display

Load capacity (Including Batt. Charging)

No Display

% set for Batt. charging 10 A (10%),15.5A(10%)

Capacity available No Display

Spare circuit breaker/ Fuse with rating

No

Required circuit breaker in rectifier 63 A-2 Pcs

Required circuit breaker in DCDB CB-6 A(3Pcs)

Remarks

4.2. Details of battery backup

For Rectifier 1 For Rectifier 2 For Rectifier 3

Manufacturer Northstar, Compact Power

Battery capacity (Ah) 9100 Ah,12V),(155Ah,6V)

No of Banks 3+3=6

Distance between GB to proposed rectifier through cable ladder

12M

Distance between GB to proposed DCDB through cable ladder

10M

Distance between battery to proposed rectifier

15M

Distance between MDB to proposed rectifier

10M

Remarks


PAGE: 11


5. MEASUREMENT OF NSN EQUIPMENT

Element Name Qty Dimension (H x D x W) Weight (KG) Comments

Flexi BTS Cabinet 1 1800 x 600 x 600 62 Only cabinet

Flexi BTS module 1 133 x 422 x 447 9.3 System Module

Flexi BTS 2/2/2 1 1800 x 600 x 600 138 Including FCIA Cabinet



Property Required Clearance

Front of the BTS cabinet 900 mm (35.4 in.)

Behind the BTS cabinet 50 mm (2.0 in.)

Behind the BTS cabinet (with maintenance space in the back) 500 mm (19.7 in.) with side access

Above the BTS cabinet 300 mm (11.8 in.)

Front of the Rectifier cabinet 500 mm (19.7 in.)

Behind the Rectifier cabinet (with maintenance space in the back) 50 mm (2.0 in.)

5.1. Power requirements

Element Name Configuration Power (W) Consumption

Voltage (V) DC Breakers (A)

Comments

Flexi BTS 900 2/2/2 1055 -48v 32A

4/4/4 2120 -48V 50A

Flexi BTS 1800 2/2/2 1160 -48v 32A

4/4/4 2360 -48v 63A

5.2. Upcoming Power system (Rectifier) details:

Manufacturer ELTEK

Model Flatpack2 HE

Rectifier Configuration -48V, 16KW (Max.)

Configuration per module 2000W, 41.7A, 48Vdc

Efficiency Up to 96.5%

Module offered 4 module

Total module capacity 8 modules.

MCBs/Fuses to connect battery bank 4 × 250A

Circuit Breaker in LLVD (Load low voltage disconnect) 5 × 100A SP FUSE/MCB 1 × 63A SP FUSE/MCB

Circuit Breaker in BLVD (Battery low voltage disconnect 2 x 63A SP Fuse/MCB 2 x 32A SP Fuse/ MCB

2 x 10A SP Fuse/ MCB


PAGE: 12


6. EXISTING DEFICIENCY:

Outdoor grounding cable available Yes No Comments:

Indoor grounding cable available Yes No Comments:

Tube light working properly Yes No Comments:

All modules in rectifier is working Yes No Comments:

AC is functioning Yes No Comments

Main power is available Yes No Comments:

Site Access at night Yes No Comments:


PAGE: 13


7.1. Photograph as seen facing side A- Side B corner

7.2. Photograph as seen facing side B – Side C corner


PAGE: 14


7.3. Photograph as seen facing side C – Side D corner

7.4. Photograph as facing side D (entrance) - Side A corner


PAGE: 15


7.5. Indoor Pictures:

Proposed

Flexi BTS In

Place of

Ericsson RBS

Proposed

DDF

Existing

Ericsson

RBS2216

Proposed

DCDB

Feeder with

jumper

connector

Proposed

Rectifier

MDB

Breakes


PAGE: 16


7.6. Outdoor Pictures:

8. Swap instructions:

PBC 6500

Rectifier Modules

Battery

Bank

Battery

Bank


PAGE: 17


Step 1:

Before entering inside the BTS room, inform the NMC about entrance and write down the names of all the team members with designations, ID, Mobile numbers, In time, signatures etc in the site register.

Step 2:

As this will be a Cold swap, first of all unpack & put the new NSN flexi BTS on the floor near the proposed place and install DDF to the proposed locations. Here are two existing Ericsson BTS cabinets (900 & 1800) and the new NSN Flexi BTS will be replaced with Ericsson 1800 cabinet. So, disconnect the jumpers from 1800 cabinet and take the values of VSWR and DTF. Then we Connect jumper cable With new flexi BTS. After Install the BTS we should install new rectifier in the proposed place, then battery connection will be made using the existing Battery. Every battery bank will contain 4 batteries in series to make a 48 volt batteries bank. Then we install the DCDB in the proposed place & connect the power cable from Rectifier to DCDB. After install the DCDB & Rectifier, we remove MW power from the Existing rectifier and this connection will be install in DCDB.

Step 3:

Connect all the PCM and alarm cables (new BTS – new DDF and existing TX Rack - new DDF). Switch on the new BTS and configure the new Flexi BTS will go to operational mode.

Step 4:

Now disconnect the jumpers cables from Ericsson 900 cabinet and take the values of VSWR and DTF. Do the necessary configurations of NSN Flexi BTS for 900 part. Now the both parts of 900 & 1800 of new BTS are in operational mode.

Step 5:

Remove the existing Ericsson BTS 900 & 1800 carefully and place the new NSN Flexi BTS there. After completing the installation work, pack the dismantled equipments and clean the BTS room properly.

Step 6:

Turn off the lights, turn on the AC if it was turned off during work, write down Out-time in the site register book, lock the BTS room, inform the NMC and then leave the site.

9. Observation & Recommendation

1. Emergency Light is required at Swap Period.

2. Required Circuit Breaker in Rectifier –63 A(2Pcs)

3. Required Circuit Breaker in DCDB—6 A (3 Pcs)

4. Required Circuit Breaker in MDB—40A (1 Pc)

abdul barek road

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