Backbone Planning & OSP Solution(Training Slide)V3.0

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Contents

Name Backbone Planning & OSP Solution (Training slide) V3.0

Purpose To provide basis concept for the client regarding the backbone planning and OSP solution

Audience

Contents • Why backbone need to be discussed• Case study• Consideration for the backbone planning• Fiber cable solution• OSP solution

Guide of Usage

• This slide will be updated every year• The information contained could also be modified according to different markets with different

strategies or be optional based on customers’ background and interest• Please contact authors if you need any assistances

Version InformationVersions Descriptions Authors Co-Authors Release dept.

V3.0 2011.10.15 1st release Caoxiang

00062456

ODN planning and engineering technology dept.

Delete this page before the presentation


Problem Feedback

If you find any problem in this document （ such as: error ， unclear description or loss of important

content ， etc ） , or if you have any suggestions, please send them to [email protected], We

will reply you in 2 working days;

In order to reply you from us with high efficiency, attentions please：

1. The documents you read are obtained from http://3ms.huawei.com.

2. Please list the document name and author;

3. We will appreciate if you would list the location of problems you find in this document.

Delete this page before the presentation


Security Level:

Slide title :40-47pt

Slide subtitle :26-30pt

Color::white

Corporate Font :

FrutigerNext LT Medium

Font to be used by customers and

partners :

Arial

www.huawei.com

23/4/8

ODN Network Planning & Engineering Dept.

Backbone Planning & OSP Solution(Training slide)

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4

I Why Backbone & Fiber need to be discussed ?

IV Fiber cable solution

III Consideration for the backbone planning

Contents

II Case study

V OSP solution


Voice, mobile, IP & data, broadband, video,…

Connecting all core equipments

Connecting different region

Local network & long distance network, Metro & long haul ,voice network & IP network, mobile network & fixed network, etc

Voice exchange, mobile exchange, IP core exchange & router, etc

Service between the different region need to be connected

Backbone is the core transmission platform for all service, it is connecting every thing:

Why Backbone & Fiber need to be discussed ?

Connecting different network

Supporting each service


For the last 20 years, it is observed the bandwidth requirement for personal use has been increased from 10kb for the voice service or mobile up to 20M for the FTTH service, and time duration is also increased from several minutes to several hours.

Fixed phone to GSM, dialing internet, ADSL, 3G, FTTx, etc

Challenge faced to backbone, can not support service without expansion

Why Backbone & Fiber need to be discussed ?

Service type increased dramatically

Service requirement booming

SMF G.652, G.655, G.657 fiber developed , and SDH, DWDM, MSTP, ASON, PTN technologies widely deployed

Fiber Technologies development


Existing MPT Transmission Network


CORE

Met

ro

BackboneYGN-NBD-MDL

YangonSDH network

ACCE

SS

BTS BTS BTS

SDHSDH

SDHMW

SDH SDH

E1 E1

NPTSDH network

SDHSDH

SDHMW

SDH SDH

MDLSDH network

SDHSDH

SDHMW

SDH SDH

NE40E

NE40E

NE40E

BTS BTS BTS

E1E1

Fiber Fiber

MW

MW

MW

MOD Leased Line

Province 1

Province 2

Province 3

Province 4

Province 5

PDH PDHPDH PDH

MicrowaveMicrowave

WDM BWS 1600G

BTS

Microwave

• Existing Transmission Network is composed of DWDM backbone, Metro SDH and MW systems.

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 8Page 8

DWDM Backbone Network Information:

1. 11 sites from Yangon to Yatanarpon. Fiber is leased from railway fiber.

2. Two lambdas are launched in DWDM system, one 10GE (For IP Core

Router main link) and one 2.5G (For SDH).

Network Running Status

1. Multi service access: This system can provide E1/STM-1/FE/GE service

among Yangon/Naypyitwa/Mandalay three cities.

2. The system runs stable under big fiber loss in this system.

3. After service commercial launch, around 1 year running, there is no

hardware and software failure. System is running stable.

Existing Network Report -DWDM Backbone

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 9HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Challenge : Limited Network Bandwidth

1. BSC delivered and installation finished in Mon state and Ayeyarwady , it can only standby due to no transmission resource support

2. Transmission is bottleneck for whole network expansion

Standby BSC (Mon, Ayeyarwady )

Page 9

Microwave Link

Existing Fiber

Planning Microwave Link

Leased Line

Pyapon



Challenge 2: Frequent Fiber Cut

1. Fiber Link topology without Fiber protection

2. Microwave bandwidth is easily to be affected by weather

Page 10

Service interrupted due to no protection

No. Date SegmentInterruption

Period

1 8/11/2010 Kyaukse-Mandalay 7.5 hours

2 8/12/2010 Penwegone-Tangoo 9 hours

3 8/12/2010 Pyawbwe-Kyaukse 24 hours

4 8/21/2010 Penwegone-Tangoo 2 hours

Microwave Link

Existing Fiber

Planning Microwave Link

Leased Line

Pyapon

Fiber Cut

-

1

2

3

4

5

6

7

8

9

Jan-11 Feb-11 Mar-11 Apr-11 May-11

Date

Fib

er

cu

t ti

mes

Fiber Cut





III Consideration for the backbone planning

Contents

II Case study

V OSP solution


China Telecom National Backbone: 8X8Y FOC Backbone Program

Program Background:

Reformations and economy development required more telecom resource to support from 1980s

Limited circuit in the whole country. LDD is less than 100K using analogy exchange in the middle of 80s

Fiber & PDH Technology just started to scaled use in developed country



Program Briefing: National information highway Program: Sponsored by China Planning & Developing Ministry, Managed by China MPT, covering whole country, connecting all Province capitals & metropolitan. Great Planning: Total 48 projects included, more than 80,000 kilometer FOC in different regions , consisting 8 east-west links and 8 north-south links, plus additional branch links to connect all metropolitan & important city. DXC equipments adopted to increase the network safety by taking advantage of mesh topology. Advanced Technology: SMF & 140M PDH adopted in the early 90s, SDH & DWDM also adopted to make the program keeping the same pace with world in the aspect of technology. Time & Cost: 15 years from1986 till 2000 with cost of 17billion RMB.



Planning Principle: The backbone should support the development for 20~25 years. Capital cities are connected by 8 east-west backbone links and 8 north-south backbone links, forming the matrix network topology Other metropolitan & important cities are connected by branching links, Express links are also configured by laying the direct FOC cable if huge capacity required between tow cities . With the branching & express links , the higher safety and stability achieved by the mesh network. The main routes are along the road and highway to facilitate the maintenance Flexible Distance between sites: 25Km~70Km distance make it easy to allocated the site in the city to facilitate maintenance G.652 Fiber for most links except G.653 fiber adopted for the 6 cores between Beijing & Guangzhou Aerial cables are adopted to meet the urgent requirement of capacity, and later direct buried cable or duct cable also laid to improve the safety. HDPE ducts were laid with additional spare pipe for the future expansion. Total Length : 8X8Y: 56000KM, Branching & Express links: 23000KM

　





Achievements: Telecommunication evaluated to fully digital & optical technologies because of this backbone, whole country and economy beneficiated from the program by providing more than hundreds time capacity(100K circuit to 4M circuit). More potential for upgrade & expansion was kept to launch new service timely (2~8 core occupied, other 40~100 core spared). To some extend, new service, new operator , whole telecom industry, even telecom reformation were supported by this Backbone: China Telecom became the largest fixed telephone operator as well as china mobile became the largest GSM operator. Even today the FOC backbone is still in service, the fiber can support upgrade and expansion to10G DWDM service without any civil work cost. More backbone links are also launched since then by the same planning principle . Till 2007, the total length of fiber cable is more than 5.7M kilometer to support the whole county go into broadband era.



Lesson learned from 8X8Y FOC Backbone Program

As the physical infrastructure for all kinds of services like Voice, video, mobile, IP service & data, etc, the backbone should plan with enough capacity for the current service as well as for the future of 20 ~ 25 years at least in advance. Till now the fiber cores are still in service after 10~15 years, and other spare cores are also available. New Service & Advanced technology should be taken into account to support future service. (3G, FTTx, DWDM, PTN, etc) The G.652D Fiber can support 10G DWDM, G.655 cost is much high, both can support the 40G by using DCM, so it is suggested to adopt G.652D for general deployment, while for G.655 it is suggested take complete consideration. The safety can be improved by the ring protection & mesh protection technologies. Aerial cable can be deployed for the backbone for fast implementation, while direct bury & duct laying could be much more safe. The aerial cable and underground cable can be spared to each other to increase the physical safety.




III Consideration for the backbone networking

Contents

II Case study

5 Suggestion for the V OSP solution

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 19HUAWEI TECHNOLOGIES CO., LTD. Page 19

Backbone Design Principle

Good design for future, easily scalable› Fiber Network is scalable, and can expansion by just adding cards unit,

subrack without civil work

• Smart design for TCO› Reuse microwave for different phase to save Capex› End to end maintenances and service deployment to save the Opex

• Deployment can be step by step, the initial cost is low › Fiber technology can Provide huge bandwidth› Fiber Network capacity can reach 100G * 80Lambda = 8T

Easy Expansion, Reliable, and Future Oriental

High Reliability

Cost Effective

Evolution



Proposed Target National Fiber Backbone for MPT

Targeted Logical Topology

HUAWEI TECHNOLOGIES CO., LTD. Page 20

Targeted Physical Topology

Yangon Bogo

MawlamyaingDawe Myeik

Loikaw

Taunggy

Taungoo

NPT

Meikti l a

Sagaing Mandalay

Pathein

Phyarpon

Magway

Bagan

Myi tkyina

Lashi

CenterRing

NorthRing 2

EastRing 2

WestRing 1

Ring

WestRing 2

Pye

SEA ME WESubmarine

Microwave

Ta-kaw

Si ttwe

Hakha

Thandwe

NorthRing 1

EastRing 1

EastRing 3

Putao

Hkam



Step-by-step Deployment Strategy--Aligning with mobile services plan

Start from center ring (red color), cover main cities of center Myanmar. Create Ring topology for high reliability Microwave for rural area Finish 1st phase within 2011 years to support 4M users.

Construct North, West ring, east ring , cover most provinces Move existing microwave to other provinces Finish 2nd phase within 2013 years to support 30M users.

Construct Fiber to cover the whole country to Realize whole country coverage Finish 3rd phase within 2015 years.

Step 1

Step 2

Step 3



Step 1: Fiber Network Connect Core Nodes


Note:1. Start from center ring , cover main cities of center Myanmar.2. Realize Ring protection for core sites3. Other areas such as Myikyina ， sittwe etc connect to core nodes by Microwave first4. Network Capacity ability in core site is 10G * 80 = 800G

Yangon

Bogo

Mawlamyaing

Taungoo

NPT

Meikti l a

Sagaing Mandalay

Pathein

Magway

Bagan

Myi tkyina

CenterRing

Pye

Lashio

Pyapon

Si ttwe

Hakha

Taunggy

Loikaw

Thandwe

Ta-kaw

Estimate Fiber Length: 2910 KM


Step 2: Construct North, West Ring


Note:1. Construct North, West ring, east ring, cover most provinces2. Realize ASON protection for Mesh topology, which realize high reliability to against multi fiber cut3. Network Capacity ability in core site is 40G * 80 = 3.2T


Yangon Bogo


Loikaw

Taunggy

Taungoo

NPT

Meikti l a

Sagaing Mandalay

Pathein

Phyarpon

Magway

Bagan

Myi tkyina

Lashi

CenterRing

NorthRing 2

EastRing 2

WestRing 1

Ring

WestRing 2

Pye

SEA ME WESubmarine

Microwave

Ta-kaw

Si ttwe

Hakha

Thandwe

NorthRing 1

EastRing 1

EastRing 3


Step 3: Fiber Network Cover Whole Countries


Note:1. Fiber Network cover whole countries2. Realize ASON protection for Mesh topology, which realize high reliability to against multi fiber cut3. Network Capacity ability is 100G * 80 = 8T

Yangon Bogo


Loikaw

Taunggy

Taungoo

NPT

Meikti l a

Sagaing Mandalay

Pathein

Phyarpon

Magway

Bagan

Myi tkyina

Lashi

CenterRing

NorthRing 2

EastRing 2

WestRing 1

Ring

WestRing 2

Pye

SEA ME WESubmarine

Microwave

Ta-kaw

Si ttwe

Hakha

Thandwe

NorthRing 1

EastRing 1

EastRing 3

Putao

Hkam



Reference 1: Vietnam National Backbone Experience

Page 25HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 25

Hanoi

Danang

HCMH

Vietnam Mobile Penetration

0%

20%

40%

60%

80%

100%

120%

2008Q1 2008Q2 2008Q3 2008Q4 2009Q1 2009Q2 2009Q3

Capacity: 10G/2.5G per lambdaNodes: 5 Core NodesWavelength: 4Lambda

Step 1 (before 2006)

Capacity: 10G per lambdaNodes: 12 Core NodesWavelength: 14Lambda

Step 2 (2006~2008)

Capacity: 40G/10GNodes: 26 Core NodesWavelength: 32 Lambda

Step 3 (2009~now)


Reference 2: Laos National Backbone Experience

Phase 1(2006~2008): Construct national Backbone Fiber to cover main cities with Link topology Phase 2(2008~2010): Create new fiber to make Ring structure to make network more reliable Phase 3(2010~ now): Build more fiber to cover the whole country


Phase 1

Phase 2

Phase 3




III Consideration for the backbone networking

Contents

II Case study

5 Suggestion for the V OSP solution


Classification of Optical Fibers

Mostly used in the drop cable section of the ODN in FTTH Most popular: G.657A

Better bending feature compared with the G.652 single-mode optical fiberMore suitable for the complex and small-space scenarios

Bending loss insensitive optical fiber (single-mode, for access network)

G.657

Long-haul transmission at 1550 nm(backbone network, submarine communications, DWDM)

Normal dispersion coefficients at the wavelength range between 1460 nm and 1625 nm Use in S, C, and L bands

Non-zero dispersion shifted optical fiber with an ultra small dispersion slope

G.656

Long-haul transmission at 1550 nm(backbone network, submarine communications, DWDM)

Low dispersion and attenuation at 1550 nmNon-zero dispersion shifted optical fiber

G.655

Submarine communicationsZero dispersion at 1310 nm, minimal attenuation and high dispersion at 1550 nm

Cutoff shifted optical fiberG.654

Due to FWM in WDM system, Gradually obsolete.

Zero dispersion and low attenuation at 1550 nm, larger-capacity long-haul transmission

Dispersion shifted optical fiberG.653

Long-haul backbone network, MAN, access network, and ODN

Zero dispersion and low attenuation at 1310 nm, wide applications as the standard single-mode optical fiber (SMF)

Non-dispersion shifted single-mode optical fiberG.652

Campus network, LAN and other short-distance transmission scenarios

Big attenuation, short transmission distance, operating wavelength of 850 nm or 1300 nm

Multi-mode optical fiber

G.651

ApplicationsCharacteristicsDescriptionModel


G657A/G652D G652D G652D/G655 G654/G655

Submarine networkAccess network MAN Land long-haul network

Application Scenario of Optical Fibers

Because DCM(dispersion compensation module) developed, cost of G652D with DCM is much lower than G655 for DWDM, so G652 fiber is the best for DWDM system.


Fiber name and bending radius1 、 Fiber type IEC vs ITU-T

=B4B6

B1.3B1

IEC ITU-T

=

==Fiber type

Standard

G655G657(A,B)

G652.DG652(B)

Fiber typeFiber typeFiber type

2 、 Differences between G652D vs G657ITU-T G.652D G.657A1 G.657A2 G.657B2 G.657B3

MFD at 1310nm um 8.6~9.5±0.6 8.6~9.5±0.4 6.3~9.5±0.4

Macro bendingloss

Radius (mm) 30 15 10 15 10 7.5 15 10 7.5 10 7.5 5 Number of turns 100 10 1 10 1 1 10 1 1 1 1 1 Max.at 1550nm (dB) - 0.25 0.75 0.03 0.1 0.5 0.03 0.1 0.5 0.03 0.08 0.15 Max.at 1625nm (dB) 0.1 1.0 1.5 0.1 0.2 1.0 0.1 0.2 1.0 0.1 0.25 0.45

Chromatic dispersion

Zero dispersion wavelength 1300-1324 1300-1324 To be discussed

Zero dispersion slope ps/(nm2•km) 0.092 0.092 To be discussed

PMD coefficient ps ／√ km(M=20,Q=0.01%) 0.2 0.2 To be discussed

According to latest ITU-T Rec. G.652 and G.657

Because of the MFD difference, compatibility of G657B fiber is not as good as G657A fiber, so G657 fiber is best for drop and indoor.


Evolution of G65X Fibers

G.651multi-mode

G.651multi-mode

Single-mode laser resource was developed G.652

Sing ModeG.652

Sing Mode

Move zero dispersion point from the 1310 nm window to the 1550 nm window.

G.653 SMG.653 SM

G.655 SMG.655 SM

Change dispersion at 1550 nm, and restricted the four-wave mixing (FWM), so as to can operate for DWDM system.

G.654 SMG.654 SMG.657 SMG.657 SMImproved the bending performance.

Move cut off wavelength from 1260nm to 1450nm, Reduce attenuation at 1550nm.

G.655 only work at 1550nm, the cost of fiber, component, dispersion compensation are also higher.

G.652D, working at 1310nm & 1550nm, is more suitable compared with G.655 due to nearly same performance but lower cost.


Supports a rate of 10 Gbit/s and a maximum transmission distance of 3000 km.

Evolution of G652 & G657 Fibers

G.652SM

G.652SM

G.652AG.652A

G.652BG.652B

Supports a rate of 10 Gbit/s a transmission distance of 400 km G.652CG.652C

G.652DG.652D

G.652D combines the advantages of G.652B and G.652C, and is the most widely commercial used optical fiber

G.657G.657

G.657AG.657A

Further improved the bending performance.

Better bending performance compared with G652D, Same MFD, attenuation, PMD and dispersion with G652D.

Good compatibility with G.652D.

Greatly reduced the attenuation coefficient at 1550 nm, and eliminated the water peak at 1383 nm.

G.657BG.657BBest bending performance, but bad compatibility with G.652D because of MFD difference. ; no so popular as G657A fiber used only as the patch cord


Main Parameters of G652D&G657A Fibers


OFC and Applications

Outdoor Optical Cable

Indoor Optical Cable

Indoor drop cablesmall bend radius

Ductsingle jacket

Aerialfigure-8/ADSS, self-support

Air-blownsmall size, light weight

Indoor Horizontal/Vertical distributionHigh capacity, dry core, flame retardant

Direct buriedDual-jacket, armor

Aerial drop / Duct dropsmall bend radius


Optical Cable Features (IEC requirements)

Good anti-tensile, anti-crush, anti-impact, anti-bend and anti-twist performance to facilitate deployment of optical fibers under various complex application environment

Highly waterproof, moisture-proof, anti-lightning, anti-rodent, high/low-temperature resistant under various application environment or climate

Mechanical

Environmental

OpticalCable provides protection to optical fiber. Optical transmission performance, such as attenuation, chromatic dispersion, PMD, cutoff wavelength and minimum bending radius


Indoor, outdoor, outdoor-indoor

By location in the network

By cable core structure

Aerial, duct, directly-buried, submarine, micro duct air-blown

Backbone cable, Feeder cable, distribution cable, drop cable

Stranded loose tube, uni-tube, slotted core

Optical cables can be classified from the following dimensions:

Classification of Optical Cables

By installationmode

By application


Optical Fiber Cable Structure

⑵ ArmorFunction: anti-crush, anti-rodentMaterial: Steel tape or glass yarn tape

⑷

FillerFunction: Keep the cable to be circleMaterial: PP

⑹

Filling compoundFunction: Protect fiber and block water ingressMaterial: Jelly

⑺ PBT loose tubeFunction: Basic optic unitMaterial: polybutylece terephthalate (PBT)

⑸

RipcordFunction: Rip the cable sheathMaterial: Polyester yarn

⑴

Cable sheathFunction: Protect optic unit Material: Polyethylene, LSZH

⑶ Aluminum tapeFunction: Moisture proof

⑺PBT loose tube⑻Optical fiber⑼Peripheral strength member

⑷Filler⑸Rip cord⑹Filing compound

⑴ Polyethylene sheath ⑵ Armor

⑶Aluminum tape

⑽Central strength member⑾Water blocking tape

⑼

Peripheral strength memberFunction: Anti-tensileMaterial: Kevlar(aramid yarn) or glass yarn

⑽ Central strength memberFunction: Anti-tensileMaterial: FRP(fiber reinforced plastic) or steel wire

⑻ Optical fiberFunction: Transmit optic signal

⑾ Water blocking tapeFunction: Block water ingressMaterial: Swellable polyester tape


Appendix- Rules for Optical Cable Naming

No symbol: Metal reinforcement

F: Fiber reinforced polymer (FRP)

2 Reinforcement

3 Structure characteristicsD: Ribbon structure

G: Slotted core structure

X: Unit tube structure

T: Jelly filled structure

C8: Fig-8,Self-supporting structure

No symbol: dry core

Z: Fireproof structure

4 Sheath

Y: PE sheath

A: APL armor + PE sheath (A sheath)

S: PSP armor + PE sheath (S sheath)

J: Tight buffer

H: Low Smoke Zero Halogen sheath

33: Steel wires armor + PE sheath

53: PSP armor + PE sheath

63: Aramid-yarn + PE sheath

83: Glass tape armor + PE sheath

5 Outer sheath

54: PSP armor + PE sheath + nylon

73: Glass yarn + PE sheath

Number of fibers

6 Number of fiber cores

A1a: 50/125 multi-mode optical fiber

A1b: 62.5/125 multi-mode optical fiber

B1.1: G.652B single-mode optical fiber

B1.3: G.652D low water-peak single-mode optical fiber

B4: G.655 single-mode optical fiber

7 Fiber type

B6:G.657,Bending-insensitive single-mode optical fiber

GY: Outdoor optical cable

GJ: Indoor optical cable

GJY: Outdoor-indoor drop cable

GCY: Micro cable for airblown

GJP: Indoor, distribution cable

GJX: Indoor, flat shape cable

1 Classification

Classification

1

Reinforcement

2

Structure characteristics

3

Sheath

4

Outer sheath

5

Number of fibers

6

Fiber type

7


GJXFH

GJYXFCH

ADSS

GYXTZY

GJPFJH

GCYFTY

GYFTC8Y

GYFTY53

Common Cable Model

Dry core, 2 non-metallic FRPs as strength member, black LSZH flame retardant sheath, G.657A fiber, indoor application.

Dry core, 2 FRPs as strength member, 1 steel wire as suspension wire, black LSZH flame retardant sheath, G.657A fiber, drop application.

All dielectric self support, Loose tube, jelly filled or dry core, non-metallic central strength member, aramid yarn, single or double sheath, aerial application.

Central loose tube, aramid yarn as strength member, black LSZH flame retardant sheath, G.657A fiber, drop application.

Dry core, non-metallic strength member, yellow color LSZH flame retardant sheath, indoor vertical and horizontal distribution application.

Loose tube, jelly filled, non-metallic central strength member, PE sheath, micro-duct air-blown application.

Loose tube, jelly filled, non-metallic central strength member, HDPE outer sheath, suspension steel strand wire, self-support aerial application.

Loose tube, jelly filled, non-metallic central strength member, double PE sheath, corrugated steel tape as anti-rodent armor, direct buried application.

Loose tube, jelly filled, non-metallic central strength member, HDPE outer sheath, duct & lashed aerial application.

Description

Horizontal routing Indoor Quadrate

Aerial drop Outdoor/Indoor Quadrate

Aerial Outdoor

Duct drop Outdoor/Indoor Uni-tube

Vertical routingIndoor

Air-blownOutdoor

Self-supportingaerial

Outdoor

Directly-buriedOutdoor

DuctOutdoor

SZ Strandedloose tube

Routing ModeIndoor orOutdoor

Structure

Classification of Optical Cables (Continued)

Stranded tight buffer

SZ Strandedloose tube

GYFTY


Typical Optical Cable–DUCT

Op

tical

Atten. ≤ 0.35dB/km at 1310&1383nmAtten. ≤ 0.21dB/km at 1550nmPMD ≤ 0.2, PMDq ≤ 0.1Conform and better than ITU-T Rec.

Mech

an

ical

Tensile: 1500N (fiber strain≤ 0.15%)Crush: 1000N (Loss change ＜ 0.1dB)Impact: 4.5J (Loss change ＜ 0.1dB)Static/Dynamic bend diameter: 10D/20DConform to IEC 60794

Remove aluminum tape Remove aluminum tape and adopt non-metal strength member

Replace aluminum tapeby steel tape

Adopt non-metalstrength member

Al tape

Outer sheath

Loose tube

Optical fiber

Tube filling compound

Metal strength member

Cable filling compoundFiller

Single-sheath, easy for pulling in duct


Add aluminum tape armor

Add aluminum tape And adopt non-metal strength member

Replace the steel tape by glass yarn tape and adopt non-metal strength member

Adopt non-metal strength member

Op

tical


Mech

an

ical

Tensile: 3000N (fiber strain≤ 0.15%)Crush: 3000N (Loss change ＜ 0.1dB)Impact: 10J (Loss change ＜ 0.1dB)Static/Dynamic bend diameter: 13D/25DConform to IEC 60794

Double-sheath with armor, Excellent anti-crush performance

Typical Optical Cable–Direct Buried

Cross section of cable (GYFTY83-48B1.3)

Outer sheath

Optical fiberLoose tube

Tube filling compoundCentral strength member

Cable filling compound

filler

Glass yarn tape

Inner sheath


Typical Optical Cable–Fig-8 aerial

Remove steel tape And adopt non-metal strength member

Replace steel tape by aluminum tape

Op

tical


Mech

an

ical

Tensile: 8000N (fiber strain≤ 0.15%)Crush: 1000N (Loss change ＜ 0.1dB)Impact: 4.5J (Loss change ＜ 0.1dB)Static/Dynamic bend diameter: 10D/20DConform to IEC 60794

High tensile strength, Self-support, Fast deployment


Typical Vertical Distribution OFC

Typical Duct Drop OFC

Op

tical

Atten. ≤ 0.36dB/km at 1310&1383nmAtten. ≤ 0.22dB/km at 1550nmPMD ≤ 0.2, PMDq ≤ 0.1Conform and better than ITU-T Rec.M

ech

an

ical

Tensile: 1000N (fiber strain≤ 0.4%)Crush: 1000N (Loss change ＜ 0.1dB)Impact: 1J (Loss change ＜ 0.1dB)Static/Dynamic bend diameter: 10D/20D

Op

tical

Atten. ≤ 0.4dB/km at 1310nmAtten. ≤ 0.3dB/km at 1550nmPMD ≤ 0.2, PMDq ≤ 0.1Conform and better than ITU-T Rec.

Mech

an

ical

Tensile: 600N (fiber strain≤ 0.4%)Crush: 1000N (Loss change ＜ 0.1dB)Impact: 1J (Loss change ＜ 0.1dB)Static/Dynamic bend diameter: 10D/20DG.657 bending insensitive fiber

inside

Dry core, tight buffer, flame retardant


Use the non-metal strength member and

the load-bearing steel strand

Use the non-metal strength member

Op

tical

Atten. ≤ 0.4dB/km at 1310nmAtten. ≤ 0.3dB/km at 1550nmPMD ≤ 0.2, PMDq ≤ 0.1Conform and better than ITU-T Rec.

Mech

an

ical

Tensile: mass of 1km cable(fiber strain≤ 0.4%)Crush: 1000N (Loss change ＜ 0.1dB)Impact: 1J (Loss change ＜ 0.1dB)Static/Dynamic bend diameter: 15D/30D

Typical Indoor/Drop OFC


ADSS (all dielectric self support)

Op

tical


Mech

an

ical

Tensile: up to 20,000NCrush: 2200NStatic/Dynamic bend diameter: 13D/25DSpan: up to up to 800m (normal 100~200m)

High tensile strength, self supportAll dielectric non-metal, anti-lightning

Can be installed on tower or pole


OPGW (optical fiber ground wire)

Op

tical


Mec.&

Ele

c.

Double function(OFC & GW), special for power transmission line. High reliability

Tensile: up to 100,000NSpan: up to 1000m (normal 200~500m)Short circuit capacity: 150kA^2s (max)Line voltage: 1,000 kV (max)


1 Direct Buried

4 ADSS installation

3 Aerial Installation

Contents – PART V OSP Solution

2 Conduit & HDPE Duct


Engineering Activities

300mm300mm

F. O. cableF. O. cable

Warning tape

Fine sandFine sand

300mm300mm

100mm100mm

Areas of soft soil or hard soil Areas of soft rock or hard rock

Soft soil or sand backfill Source soil backfill

Lightning protection ground cable

F. O. cableF. O. cable

Warning tape

Lightning protection ground cable

300mm300mm

The engineering activities contains trenching, filling trench bottom with cement, bitumen or stones, routing

F. O. cables, installing lightning protection ground cables, laying out warning tapes, backfilling, and

protection.

Cross section of direct buried F. O. cable engineering


1 Trenching

The soil volume (m3) of the cable trench can

be calculated as the following formula:

E = (A + B) x H/2 x L

In the formula:

E: Soil volume (m3)

A: Bottom width (Unit: m)

B: Upper width (Unit: m)

H: Depth (Unit: m)

L: Length of the trench (1000 m)

Cross-section of a cable trench

H: Depth. It varies according to

specific requirements in different

countries.

B: Upper width. It is determined

according to the slope coefficient that

is based on local soil property (hard or

soft).

① Trench according to the line that is drawn in the route re-survey. The cable trench depth and slope coefficient shall meet the requirements.

② After a segment of the cable trench is dug, route the F. O. cable timely to prevent the cable trench from being collapsed in a rainy day.

③ The cable trench depth shall meet the requirements and the bottom of the cable trench shall be even and without crushed stones. For the stone cable trench or

half-stone cable trench, fine soil or sand soil shall be laid out at the bottom of it.

④ Check and accept the concealed engineering after the trenching.


2 Laying F. O. Cables

RoutingRoutingFigure-∞ Routing

Mechanical Routing

Manual Routing

Coil the F. O. cable into several groups as figure- ∞. Route

the F. O. cable in sequence in the cable trench.

Manual routing is to hold the F. O. cable on the shoulder

every 10-15 m along the routing direction, and then route the

F. O. cable in the cable trench.

• Application environment: integrated soil (20% common soil,

50% hard soil, and 30% gravel soil)• Advantages: It takes one time to complete the trenching, routing

and backfilling.• Disadvantages: It needs to re-trench to route the lightning wire.


3 Backfilling

① To prevent the F. O. cable from being damaged, backfill the

trench in time after the F. O. cable is routed.

② Backfill 30 cm-depth common soil or fine soil first to prevent

the F. O. cable from being damaged by the large hard soil or

stone.

③ Compact the backfill every 300 mm and clear the rest soil in

time.

④ The depth of the backfill shall be 10-20 cm higher than the

ground

⑤ Bury marking stone based on the design requirements during

the backfill.

Backfill


Cable Trench Sealing

4 Protecting direct buried F. O. Cables (1)

As shown in the following figure, seal the trench by concrete in the area with

serious soil erosion.

Overview

direct buried F. O. cable protection:① Use steel pipe and plastic pipe for protection.

② Use brick, concrete cover slabs, and mixture of concrete and mortar for

protection.

③ Route warning bands for protection.

④ Build protection slope, protection ridge for protection.

⑤ Use blocking and concrete-sealed trench for protection.

⑥ Route drain wire to protect the F. O. cable from lightning.

⑦ Route termite-proof F. O. cable and spray chemical liquid in the cable

trench to protect the F. O. cable from termite.


Ditch and Ridge Reinforcement

IT System SupportIT System Support


As shown in the following figure, protect the ridge that is over 1 m high by 30% lime and 70% soil or by crushed

stones and cement.


Cable Trench Blocking

IT System SupportIT System Support


As shown in the following figure, to prevent the cable trench from water loss and soil erosion, block the proper segment of the cable trench.


Crossing Railway

Crossing RoadIT System SupportIT System Support If road excavation is permitted, bury a steel pipe (with a diameter of 100 mm) 1.2 m beneath the road surface. The steel pipe must be long enough

to go 1 m beyond the drainage ditches on both sides of the road. If road excavation is prohibited, use horizontal direct drilling (HDD).


Bury a steel pipe (with a diameter of 100

mm) 1.2–1.5 m beneath the road base.

The steel pipe must be long enough to go

1 m beyond the drainage ditches on both

sides of the railway.



Protecting direct buried F. O. cables against thunder and lightning① In lightning-prone areas (with days of thunderstorm not less than 20) and areas with history of lightning strikes, the earth resistivity determines the protection

measure: If the earth resistivity is not larger than 100 ohm•m, a drain wire is not needed. If the resistivity is between 100 ohm•m and 500 ohm•m, lay a drain wire above the cable. If the resistivity is not less than 500 ohm•m, lay two drain wires above the cable.

② Solder two lightning drain wires after they have been routed. The joint part shall be anti-corrosion. The drain wire shall not be grounded.

③ Keep metal components of two cable drums on the connector disconnected. Ground the metal sheath of the F. O. cable when splicing the cable terminal.


1 Direct Buried

4 ADSS installation


Contents – OSP Solution



Relevant Operations

OLT ODF

CO Feeder cable Distribution cable Drop cable

FAT

TB

ONT

FDT

SPL

FDT

Relevant operations:TrenchingInstalling ductsInstalling manholes/ hand holesBackfilling and restorationLaying out cablesInstalling equipmentConnecting optical cablesTesting and acceptance

Manhole/Handhole Cross section of ducts

Soft soil or sand Raw soil

Duct

50mm50mm 50mm50mm

100mm100mm

At least 300 mmAt least 300 mm

Thin layer of soil

Duct optical cable


HDPE duct

Major Tube Types

PVC duct

Micro duct and sub-tube (generally used in micro-trenching techniques)


1. Duct Construction

Excavate trenches along lines confirmed in

re-surveys. The depth of trenches must conform to regu

lations. The trench bottom must be leveled without

gravel. Carry out concealed work acceptance on e

xcavated trenches.

Set warning tapes 300 mm from

ducts. Work with the carrier to determine

backfill materials and specification

s.

Conform to local regulations in duct in

stallation. Take future capacity expansion into c

onsideration in planning of duct quanti

ties.

The sizes meets customer requiremen

ts. Manholes/hand holes are generally pla

ced onsite or prefabricated. Set manholes/hand holes at locations

specified on design drawings.

Trenching Laying ductsBuilding manholes/han

d holes Backfilling trenches

Note: The preceding information is for reference only. Conform to regulations of carriers and local regions.


2. Cable Laying: Methods and Procedure

• Manually drag optical cables into tubes, and install the

tubes using tools.• Allocate 2–3 persons in each manhole for dragging ca

bles. Cable dragging is performed under unified comm

and without twisting cables in manholes.• Personnel for dragging cables must have unhindered

communication with one another.

Manual laying

• Use tractors to drag optical cables into tubes.• Allocate personnel at each manhole, and take protective

measures at pressure points vulnerable to damage.• When dragging cables, unhindered communication is req

uired among construction sites.

• Use air-blowing machines to install optical cables in pre-i

nstalled ducts.• The length (generally 1 km) of blowing a cable at a time

depends on quality of the silicon core tube.• Generally, single-coil cables are blown from a middle poi

nt to both directions.

Mechanical laying Air-blown laying


2. Cable Laying: Construction Precautions

Note: The preceding information is for reference only. Conform to regulations of carriers and local regions.

During cable laying

Strictly control the traction on optical cables during

laying. The instantaneous maximum traction must

not exceed the allowed stretching force.Ends A and B of installed cables must conform to

the design.Use paraffin oil or talcum powder as the lubricant f

or installing duct cables. Do not use organic oil. In manual dragging, drag the cables section by se

ction in manholes.

In figure-8 laying, the internal diameter must be at

least 2 m.

After cable laying

Installed cables must be straight without twists or

apparent scratches and damage.Do not bend a cable section within 150 mm outsid

e the tube.Attach installed cables to the manhole wall and bi

nd them on brackets. In manholes/hand holes, us

e plastic hoses to protect cables and bind them up.Set marks on optical cables.Seal cable ends for moisture-proof.Reserve cables at connectors. Lengths of reserve

d cables must conform to specifications.


1 Direct Buried

4 ADSS installation





Engineering Topology

OLT ODF

CO Feeder Cable Distribution Cable Drop Cable

TB

ONT

FDT

SPL

aerial optical cable installation and protection

Installation on the pole

Engineering Procedure:

Pole planting

Stay wire installation

Suspension wire routing

Optical cable routing

Equipment installation

Optical cable splicing

Acceptance and test


Suspension Wire and Hook Staple Bolt

Staying Wire and Anchor

Engineering Materials

Pole 7 × 2.2 mm Steel Strand Wire

7×2.6 mm Steel Strand Wire


The depth of stay wire hole:

1. Digging Holes

Depth of the holes:

The routing direction of poles, the distance between two adjacent poles, the hole depth, the pole height, and the position of

stay wires shall meet the engineering design requirements. The distance between two adjacent poles is 35 m to 55 m.

Formation of the Stay Wire

Normal Soil Hard Soil Paddy Field litho-Soil Cement/Asphalt

7/2.2 1.4 m 1.3 m 1.5 m 1.0 m 0.9 m

7/2.6 1.5 m 1.4 m 1.6 m 1.1 m 1.0 m

7/3.0 1.6 m 1.5 m 1.7 m 1.2 m 1.1 m

Pole Length Normal Soil Hard Soil Paddy Field litho-Soil Cement/Asphalt

7.0 m 1.4 m 1.3 m 1.5 m 1.0 m 0.9 m

8.0 m 1.5 m 1.4 m 1.6 m 1.2 m 1.1 m

9.0 m 1.6 m 1.5 m 1.7 m 1.4 m 1.2 m

10.0m 1.7m 1.6m 1.8m 1.6 m 1.5 m

Note: The preceding data is for reference only. The specific standard shall be based on the local specifications.


2. Planting PolesCautions:

•Put several rubbles at the bottom of holes in advance.

•Plant the pole in the hole by manpower or machine under the

sufficient and careful protection.

•During the compaction, first put larger stones, and then the

small one, keep putting while compacting.

•Pay full attention to personnel safety and their coordination.

Cement pole or wooden pole

Material Selection Pole PlantingPole Calibration Temporary

Protection Design and determine the position of stay wires based on construction drawing.

Dig the hole based on specifications

Ensure that the bottom and top of a pole are in a straight line.

Make protection for the newly planted poles


3. Installing Stay Wires The angle of the line shall be between 30° and

60°. The formation of stay wires shall be one-level higher than that of suspension wires (7 x 2.6 mm).

When the angle of the line is larger than 60°, a new stay wire is added and the formation of stay wires shall be one-level higher than that of suspension wires (7 x 2.6 mm).

Set quadruple stay wires every 16 poles. When stay wires cannot be installed, use stay

poles or stay wires with a high pile instead of them.

Stay wires consist of anchor, steel strand, liner ring, and double-trough splint.

Used to balance the line stress to ensure the

stability of the pole. The types of stay wires

are diagonal single stay wires, double stay

wires, quadruple stay wires, stay poles, and

stay wires with a high pile.

Function

Composition

Technique Point



4. Installing Suspension Wires

Material Selection Figure-8 Coiling Suspension Wire Routing

Auxiliary Fastening Suspension Wire Tightening

The 7x2.2/2.6/3.0 galvanized steel strands

are usually used as suspension wires. The

optical cable hooks are usually made of

galvanized metal parts or plastic parts. Splints

and iron hoops need to be galvanized.

Coil the steel strand as figure-8, that

is, first coiling in one direction of 1 km,

and then the other direction of 1 km.

The maximum sag of the suspension

wire is in direct proportion to the span

of the poles. aerial optical cable is

fixed by iron hoops to the single

suspension wire.

• Suspension wires shall be tightened by mechanical method.

• For the straight line, tighten one time every 500 m. For the curved line, tighten at the place where an angle pole stands.

After fastening the suspension wires,

tighten them with proper tightness that

meets the requirement.

Hang and drag the

suspension wire by the

thick rope.

Strike the steel strand

wire

Function: Support the aerial optical cables

Composition: Steel strand wire, Three-hole single-groove splint, and iron hoop

Suspension Wire Check


Select the routing areas to reduce

the connectors based on the length

of the delivered cable drum. Consider the construction condition

of the optical cable connectors .

2 ） Configuring the optical cable 3 ） Hanging the Optical Cable 4 ） Reserving the Optical Cable

Choose proper hooks to fix the suspended aerial optical cables. The pattern of the hooks is determined by the design.

The interval between two hooks is 50 cm with 3 cm deviation. The first hook on each side of the pole is 25 cm far from the splint of the suspension wire with 2 cm deviation.

Reserve proper optical cables

based on the specification and

design requirements. Connectors of the optical cables

shall be put near or on the poles.

Procedure:

5. Installing the Aerial Fiber Optical Cable

Check the package of the cable drum and the A/B port level of the optical cables.

Check the physical features of the optical cable.

Use the OTDR meter to test the attenuation and the length of every delivered cable drum

1) Checking the cable drum


6. Protecting the Optical Cable: Lightning-Proof

• To protect the aerial optical cables, lightning wires shall be installed on the following poles

• Grounding the lightning wire:

• Terminal poles, the five poles near the central office• Angle poles, poles that are more than 12 m high • Poles that stand on the top of hills• Poles that stand in the areas abundant in thunder-storm • Every five-to-ten poles• Old poles that re-suffer from lightning stroke

• Lightning wire is usually made of 4 mm-diameter galvanized iron wire with, of which the upper side is 10 cm higher

than the top of the pole and the lower side can be soldered to directly connect to the ground wire.

• For the poles with stay wires, the 4 mm-diameter galvanized iron wire is used as the lightning wire on the top, but its

lower part is connected to the stay wires.

• Grounding resistance:

• Grounding resistance is about 20 to 35 ohms.



For the construction in the area with poor transport facilities, it is necessary to consider the construction period delayed and cost raised by the transportation

7. Risks of the Aerial F. O. Cable Engineering

Due to the construction period, cost, and engineering quality of the aerial optical cable are varied on different geography, so it is necessary to adjust the construction according to specific geography.

Climate has an effect on the construction period and cost. In addition, different climate has different requirements for the design and material.

As an important factor, subsidy implementation shall be based on the relevant laws and regulations during the design and construction.

The material provider must obtain a certification, because the material quality has a direct effect on the construction period, quality hazard and engineering cost.

Risks

Transport

Subsidy

Climate

Material

Geography


1 Direct Buried

4 ADSS installation




英文标题 :32-35pt 颜色 : R153 G0 B0

内部使用字体 :FrutigerNext LT Medium

外部使用字体 : Arial

中文标题 :30-32pt 颜色 : R153 G0 B0

字体 : 黑体

英文正文 :20-22pt子目录 (2-5 级 ) :18pt

颜色 : 黑色内部使用字体 :

FrutigerNext LT Regular外部使用字体 : Arial

中文正文 :18-20pt子目录 (2-5 级 ):18pt

颜色 : 黑色字体 : 细黑体

HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD.HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD.Page 74

ADSS ACCESSORIES

Fiber Optic Suspension Unit Aluminum Support

Fiber Optic Support Clamp

Lite Tension Dead-end

Dielectric Support Remaining Cable Storage

Helical vibration damper

Vibration damper (Hammer)


Tensioner

Puller

PulleySwivel

Pulling grip

ADSS installation Machine & Tools


ADSS cable installation Procedure

Tools & Attachment Test Training Stringing field arrangement

Pulley installation on tower Pulling rope laying

Connect with Cable Cable stringing

Pulling rope hanging

Cable sagging

Accessory fixingCable leading downTesting

Splicing E2E testing As build report

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 7723/4/8

ADSS cable stringing---Backward hauling

The method of “backward hauling” is frequently used, the cable is pulled

along the cable route through temporary support installed on each tower. A tension device should be set on where cable coil is located. Cable coils are set and fixed on tension wire-laying racks or tackles and

imposed with certain tension so as to prevent them from spinning too fast. Ensure proper clearance from electric power line and other cables that may

sag near the fiber optic cable. Minium Radius: 20 times the outside diameter---cable under load 10 times the outside diameter---cable under no load


ADSS stringing equipments arrangement

Pulling Grip

Cable Reel Tensioner

PulleyPulley

ADSS

Pulling rope

Puller

Install the pulley and lay the pulling rope Roll the ADSS cable on the tensioner Joint the ADSS with Pulling rope with swivel & pulling

grip

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 7923/4/8

(1) The pulling speed start from 5m/min within first span, then could be

increased to 30m/min, never exceed 40m/min

(2) Tension should be less than 20% RTS during the pulling

(3) The cable must never scrape against the mast, rollers or ground.

Pulleys are set on every supporting tower to avoid this happen.

Cable stringing

Cable sagging & Accessories fixation(1) After cable has been placed in pulley on each tower, the cable sag and

tension should be adjusted before permanently secured

(2) Tension should be kept less than 20% of RTS.

(3) Suspension and tension accessories should be installed within 48 hours.


Comparison of Installation Methods

Method Advantage Disadvantage usage

Conduit &

Duct

Out of sight, adaptable for future

expansion, easy cable placement

and removal, long lifetime,

protected from most natural

disasters and low maintenance

expense

Highest initial cost compared to other

way., difficult to acquire ROW for civil

work.

Mainly used for primary cables

and in urban areas with limited space,

and is commonly used in FTTx

engineering.

Direct buried similar to a underground conduit

system, also has many of the

same advantages. cables are not

vulnerable to damage

Capacity cannot be increased, and

not much mechanical protection,

higher cost in construction compared to

Aerial way and complex in construction

environment.

Mainly use for trunk cabkles &

secondary cables and in long runs

as in non urban areas.

Aerial Cable Low cost, Flexible, fast

installation, easy maintenance

and adaptable for future

expansion.

Easy to be affected or damaged by

external environment, natural disaster,

accident, and to be removed resulting from

municipal construction.

Suitable when exiting poles are

available. Applicable to the non-

backbone optical cables, such as the local

network trunk, distribution cable & drop

cable.

ADSS Similar to Aerial cable, mental-free

reduce the lightening affection,

Aramid Yarns adpoted can avoid the

shooting beyond 20m.

Affection of Power system should be

considered, ROW should also be

concerned

Used when existing power pole or

tower available


Slide title :32-35pt Color: R153 G0 B0

Corporate Font :FrutigerNext LT Medium

Font to be used by customers and partners :

Arial

Slide text :20-22ptBullets level 2-5:

18pt Color:Black



Arial

Top right corner for field-mark, customer or partner logotypes.

----------------

The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.

MPT Backbone Project Overview; Summary of SOW

Page 81

TopologyTentative

Distance (km)Priority

Yangon--PYAYE 324 1

PYAYE--Magwe 228 1

Magwe-Bagan 160 1

Bagan-Pahukku 147 1

Pahukku-Mandalay 218 1

Mandalay-Monywa 94 1

Mandalay-Lashio 291 1

Mandalay-NPT 280 1

Meiktila-Taunnggyi 192 1

Naypyitaw-Bago 308 1

Bago-Yangon 100 1

Bago-Maw La Myaing 207 1

Yangon-AYWD(Pathein) 194 1

Yangon-PyaBon 167 1





Arial


18pt Color:Black



Arial


----------------






Arial


18pt Color:Black



Arial


----------------


Page 82

Solution 1 Share Existing Pole system(50%) + Installation New aerial cable(50%) Solution ( ADSS 96 cores)

Solution 3 Share Resource New Installation with Pipeline Route On Some Routes

• Build new aerial fiber cable• Share existing pole or duct system of MEPE/Railway/Street Lamp etc.

Disadvantage: • High maintenance cost

Advantage: •Fiber cable owner ship and Low rental cost•Easy for system expansion

Solution 2 New Installation (100%) Solution ( ADSS 96 cores)

• Build new pole and aerial fiber cableDisadvantage: • Long construction period •High maintenance cost

Advantage: •be fit for local nation natural condition and middling construction cost•Easy for system expansion

• Build new pole and aerial fiber cable Or HDPE duct undergroundDisadvantage: • Long construction period •High maintenance cost for aerial fiber cable•Low maintenance cost for HDPE duct (underground)

Advantage: •Be fit for local nation natural condition and middling construction cost•Easy for system expansion

Backbone Implementation Proposal– OSP Solution Proposal





Arial


18pt Color:Black



Arial


----------------




----------------


Page 83

Backbone Implementation Proposal– Myanmar Landform Analysis

Pictures above side was taken during survey

Clay Sand Campagna /City Zone/Mountain Area will be the most

popular case in Myanmar

Based on the kinds of landform we suggest to use Aerial cable solution

for new fiber cable implementation

City Zone

Zone/Mountain Area

Clay Sand Campagna

Sand Campagna

Rock Types Map Of Myanmar





Arial


18pt Color:Black



Arial


----------------


For Aerial cable solution

Low Cost

High Adaptability

Fast Project Implementation

Aerial Cable Solution will easily to meet the development requirement of GSM Network





Arial


18pt Color:Black



Arial


----------------


Page 84

Backbone Implementation Methods – Aerial Cable Solution

. ..

.

. .

..

Power Cable Pole

Power Cable

Optic Fibre Cable

BracketNew build Pole

OFC Along Power cable

When installing cables on existing poles local authority requirements need to be verified regarding cable separation

Thank youwww.huawei.com

Copyright©2011 Huawei Technologies Co., Ltd. All Rights Reserved. The information contained in this document is for reference purpose only, and is subject to change or withdrawal according to specific customer requirements and conditions.

Backbone Planning & OSP Solution(Training Slide)V3.0

Documents

ringmawlamyaing

loikaw bogo

case study

metal strength

east ring

east ring

microwave

staticdynamic