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 25 th 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:
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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:
(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:
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 10
Nokia Siemens Networks, All rights reserved. Version: 1.4
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
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 11
Nokia Siemens Networks, All rights reserved. Version: 1.4
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
Flexi BTS 4/4/4 1 1800 x 600 x 600 171 Including FCIA Cabinet
Flexi BTS 8/8/8 1 1800 x 600 x 600 247 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
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 12
Nokia Siemens Networks, All rights reserved. Version: 1.4
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:
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 13
Nokia Siemens Networks, All rights reserved. Version: 1.4
7.1. Photograph as seen facing side A- Side B corner
7.2. Photograph as seen facing side B – Side C corner
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 14
Nokia Siemens Networks, All rights reserved. Version: 1.4
7.3. Photograph as seen facing side C – Side D corner
7.4. Photograph as facing side D (entrance) - Side A corner
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 15
Nokia Siemens Networks, All rights reserved. Version: 1.4
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
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 16
Nokia Siemens Networks, All rights reserved. Version: 1.4
7.6. Outdoor Pictures:
8. Swap instructions:
PBC 6500
Rectifier Modules
Battery
Bank
Battery
Bank
Customer: Axiata (Bangladesh) Ltd [AKTEL] SWAP BTS Technical Site Survey Report Site Name: Abdul Barek Road
PAGE: 17
Nokia Siemens Networks, All rights reserved. Version: 1.4
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)