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TRANSCRIPT
OSP (Outside Plant)By SUN Telecom
FTTx FTTH Solutions
1. FTTx Cable Network Overview
2. ODN Architecture Analysis
3. Node Design
4. Fiber Optic Cable
5. Fiber Optic Terminal Equipment
6. Fiber Optic Passive Components
7. Other Equipments
8. Information Pipeline Design
9. Light Budget Calculation
CONTENTS
FTTx FTTH Solutions
FTTx Cabling System consists of fibers,
terminal devices, passive components, etc for
connecting between OLTs and ONUs
FTTx FTTH Solutions
FTTx FTTH Solutions
Distribution Splitting
Aggregation Splitting
Centralized Splitting
FTTx FTTH Solutions
Cascading Splitting (1 x 8 / 1x 4 or 1x 4 / 1x 8)
FTTx FTTH Solutions
Placement
POS Located in LCP and NAP
Features
Multi-point testing and maintenance
High optical loss
Low OLT PON port utilization rate
Complicated network structure, hard to maintain
Application
Aerial access method
Network reform
FTTx FTTH Solutions
Single Splitting (1 : 32)
FTTx FTTH Solutions
Placement
LCP
Features
Integrated link testing and user management
Low optical loss
High OLT PON port utilization rate
Low cost for splitter
Simple network topology, easy to maintain
Application
Duct access method
New project
FTTx FTTH Solutions
FTTx FTTH Solutions
Placement
Central Office
Features
Single point link testing and maintain
Low Optical loss
High OLT PON port utilization rate
Low cost for splitter
Dedicated cable for each house
Flexible topology
Huge infrastructure cost
Application Duct access, new project, user close to CO
FTTx FTTH Solutions
OLT Central Office
Local Convergence Point
Network Access Point
User Terminal
FTTx FTTH Solutions
OLT Central Office deployment and design
requirement
OLT central office should be easy to handling large
equipment
Enough space for device installation and storage
Good working environment (Temperature & Humidity)
Central Office construction standard
CO with fire safety equipment
The CO should far away from high-intensity vibration
source, noise source, electromagnetic interference, and
flammable and explosive materials
FTTx FTTH Solutions
Provide -48V power supply
Highest power load requirement that the area
can have
Individual power line access, dedicated power
distribution box
UPS power supply
FTTx FTTH Solutions
AC/DC Power supply grounding
Section size of grounding wire should greater
than 25mm2
Ground resistance should be less than 5 ohm
FTTx FTTH Solutions
User aggregation point
Located in place that is easy to manage and
maintain
Building distributor, vertical shaft, outdoor
optical cross-connection cabinet, man hole,
pole etc
Active connection, easy to inspect and
maintain
FTTx FTTH Solutions
Close to subscriber
The terminal device can not too big
Floor vertical shaft, staircase, electrical pole
Distribution cable spliced with drop cable
FTTx FTTH Solutions
For FTTH application, dedicated box for install
ONU, embedded on the wall
Local power supply
FTTx FTTH Solutions
Feeder Fiber Cable
Distribution Fiber Cable
Drop Cable
FTTx FTTH Solutions
Feeder Cable for connection Cable from ODF
in central office and splitter distribution cabinet
in LCP
Application : Direct burial, Duct installation,
Aerial
FTTx FTTH Solutions
GYTA53 Cable
Features 2 ~ 144 cores
Dual Armor dual jacket, gel-filled loose tube cable
High mechanical properties
Application: Duct, aerial (lashed), direct burial
FTTx FTTH Solutions
GYTC8S Fiber Cable
Features Armored, stranded gel-filled loose tube cable (Non-
armor available)
Stranded steel wires as self-supporting unit
High mechanical properties
Application: Aerial with
self-support
FTTx FTTH Solutions
GYFDTS Ribbon Fiber Cable
Features Armored, gel-filled loose tube cable
Non-metallic central strength member
Application: Duct, Aerial (lashed)
FTTx FTTH Solutions
For connection Splitter distribution point to fiber
distribution point, Indoor or outdoor application
0.9mm Distribution Cable
2.0mm Distribution Cable
FTTx FTTH Solutions
FTTx FTTH Solutions
Distribution Cable
Large cores distribution indoor cable
Aramid yarn as strength member
Non-metallic central strength member
High Mechanical property
Application: Premises distribution system,
horizontal backbone cabling, Indoor LAN,
interconnect
FTTx FTTH Solutions
FTTx FTTH Solutions
Break-out Cable
Multi cores breakout cable with 2.0 / 3.0mm
subunits
Aramid yarn as strength member
Non-metallic central strength member
Higher mechanical properties
Application: premises distribution system,
Vertical backbone cabling, indoor LAN,
interconnect
FTTx FTTH Solutions
The last-mile of the ODN
Direct burial, duct, or aerial installation
FTTx FTTH Solutions
FTTx FTTH Solutions
2013-06-03
Steel messenger wire to ensure high tensile.
Low smoke, zero halogen and flame retardent
sheath.
Good mechanical and environmental
characteristics
Soft, flexible, easy to lay and splice
Simple Structure, light weight and high
practicability
Big data transmission capacity
FTTx FTTH Solutions
FTTx FTTH Solutions
Steel messenger wire to ensure high tensile.
Low smoke, zero halogen and flame retardant
sheath.
Good mechanical and environmental
characteristics
Soft, flexible, easy to lay and splice
Simple Structure, light weight and high
practicability
Big data transmission capacity
FTTx FTTH Solutions
Optical Distribution Frame
Rack Mount Terminal Box
Fiber Optic Splice Closure
Splitter Joint Closure
Cross-connection Cabine
Fiber Distribution Terminal Box
Splitter-type Terminal Box
Optical Distribution Network
Splitter type ODN
ODN Home Patch Panel
FTTx FTTH Solutions
Locate in Central Office
Connection between Outside fibers with active
equipment
Various interface available SC, FC or LC
Max. 792 fibers, high terminal density
FTTx FTTH Solutions
FTTx FTTH Solutions
2013-06-03
High reliable and flexible
19” standard rack chassis
SC, ST, FC, DLC and other types of patch
panel
FTTx FTTH Solutions
Inline-type FOSC
Dome-type FOSC
Mini-type FOSC
FTTx FTTH Solutions
For aerial, direct burial and duct application
Rubber sealing
4, 6, 8 cable ports
FTTx FTTH Solutions
For aerial and duct application
Heat-shrinking sealing or mechanical sealing
3 ~ 7 cable ports
FTTx FTTH Solutions
Mini dimensions
Easy to open and install
12 / 24 fibers
FTTx FTTH Solutions
PLC splitter could be put inside
Different sealing accessories for different cable
FTTx FTTH Solutions
96 ~ 1152 fibers
Stainless steel, SMC
IP 65
FTTx FTTH Solutions
FTTx FTTH Solutions
FTTx FTTH Solutions
Fiber distribution and patching
Reliable fixing device for optical fiber
FTTx FTTH Solutions
Splitter can be placed inside
Drop cable fixation device
FTTx FTTH Solutions
Wall mount and pole mount
FTTx FTTH Solutions
Splitter inside
FTTx FTTH Solutions
1/2/4 fiber cores
A86 patch panel
FTTx FTTH Solutions
Passive Optical Splitter
Adapter / Connector
Fast Assembly Connector
Pigtail
Patch Cord
FTTx FTTH Solutions
PLC Splitter (1 (2) : 128), or FBT Splitter (1 (2) :
8)
Bare Fiber, Blockless, Fan-out type, Module,
LGX, Rack Mount
Average splitting or not
Splitter Loss: 1:N Splitter, the loss for port I
with Y% optical power P = a x 10lg[Y%]
FTTx FTTH Solutions
Use of lithography, the semiconductor
substrate in the medium or the formation of
optical waveguide
Wide wavelengths range and temperature
Equal splitting ratio
Compact size,
Max. 1:128
Low cost for high
splitting ratio
FTTx FTTH Solutions
FTTx FTTH Solutions
FTTx FTTH Solutions
Fused Biconical Taper, this is traditional
technology to weld several fiber together from
side of the fiber
Low cost in low splitting ratio
Wavelength sensitive
Low non-uniformity
TDL large
Large size for high splitting ratio
FTTx FTTH Solutions
FTTx FTTH Solutions
Parameters PLC Splitter FBT Splitter
Wavelength Range (nm) 1260 ~ 1650nmSingle/dual/triple
window
Splitting Ratio Equal divisionEqual or non-equal
division
Dimensions SmallLarge size for multi
channel
Wavelength Sensitivity Low High
CostLow splitting channel,
high price
Price is lower for small
channel splitter
FTTx FTTH Solutions
FC, SC, LC
SM / MM
Low insertion loss
Metal or plastic housing
Hybrids
FTTx FTTH Solutions
Pre-embedded fiber and pre-polished ceramic
ferrule
Less than 1 minute operation time
Long life span
FTTx FTTH Solutions
SC, FC, LC
FTTx FTTH Solutions
FC, SC, LC
FTTx FTTH Solutions
Single / Dual end connector
SC/PC or SC/APC
Customized length
FTTx FTTH Solutions
Fusion Splicer and Cleaver
Tools and Tool Kits
Test Equipment
FTTx FTTH Solutions
FTTx FTTH Solutions
FTTx FTTH Solutions
PON Power Meter
Fiber Optic Talk set
FTTx OTDRs
Fiber Fault Locator
FTTx FTTH Solutions
Requirement for cable laying
Requirement for indoor cable channel
FTTx FTTH Solutions
Outdoor cable laying requirement
Indoor cable laying requirement
Tube requirement
Tube material
Tube Routing
Tube Dimensions
Tube length and bending
Man hole configuration
FTTx FTTH Solutions
Indoor Cable laying requirement
Cable shaft configuration
Vertical tube laying requirement
Indoor Cabinet installation
In house distribution box
Patch panel
Indoor tube requirement
Indoor line tank laying requirement
FTTx FTTH Solutions
EPON System
CATV System
FTTx FTTH Solutions
Light Budget Calculation
Items Unit Single Fiber (PX20)
OLT
Min Output Power dBm 2
Max Output Power MAX dBm 7
Min Sensitivity dBm -27
Min Overload dBm -6
ONU
Min Output Power dBm -1
Max Output Power dBm 4
Min Sensitivity dBm -24
Min Overload dBm -3
FTTx FTTH Solutions
Name Avg. Loss (dB)
ConnectionAdapter 0.2
Fusion Splicing 0.01
Splitter
1:32 16.8
1:16 13.7
1:8 10.5
1:4 7.3
1:2 4.0
Cable (G. 652)1310nm 0.36 /km
1490nm 0.25 /km
Power Loss Point Analysis
FTTx FTTH Solutions
Length of Fiber Cable
Wavelength of the Light
Quantity of Adapter
Number of Quick Connection Connector
Splitter
ODN Light Budgeting (Example)
FTTx FTTH Solutions
FTTx FTTH Solutions
Topology (Example)
Loss Type Qty
Avg.
Loss
(dB)
Total Avg. Loss (dB)
1:64 1:32 1:16 1:8 1:4 1:2
Cable (G.652) (km) 20 0.36 7.2 7.2 7.2 7.2 7.2 7.2
Adapter (pc) 4 0.2 0.8 0.8 0.8 0.8 0.8 0.8
Extra Loss 1 1 1 1 1 1 1 1
Passive
Optical
Splitter
(pc)
1:64 1 21.0 21.0
1:32 1 16.8 16.8
1:16 1 13.7 13.7
1:8 1 10.5 10.5
1:4 1 7.3 7.3
1:2 1 3.2 3.2
Total Loss (dB) 30 25.8 22.7 19.5 16.3 12.2
20km Optical Loss (One Splitter)
10km Optical Loss (Two Splitters)
Loss Type Qty
Avg.
Loss
(dB)
Total Avg. Loss (dB)
1:64 1:32 1:16 1:8 1:4 1:2
Cable (G.652) (km) 10 0.36 3.6 3.6 3.6 3.6 3.6 3.6
Adapter (pc) 6 0.2 1.2 1.2 1.2 1.2 1.2 1.2
Extra Loss 1 1 1 1 1 1 1 1
Passive
Optical
Splitter
(pc)
1:64 1 21.0
1:32 1 16.8 16.8
1:16 1 13.7 13.7
1:8 1 10.5 10.5
1:4 1 7.3 7.3
1:2 1 3.2 3.2 3.2 3.2 3.2 6.4* 3.2
Total Loss (dB) 25.8 22.7 19.5 16.3 12.2 8.7
1:64, 1:32 Optical Budgeting
20km 15km 10km 5km
1:64 1:32 1:64 1:32 1:64 1:32 1:64 1:32
1:64 30 28.2 25.8 24
1:32 25.8 24.0 22.7 20.9
Total Loss 30 25.8 28.2 24.0 25.8 22.7 24 20.9
FTTx FTTH Solutions
1550nm
Transmitter: 19.5dBm
Receiver: -6 ~ 2dBm (-10 ~ 2dBm)
19.5dBm – 24.8dBm = - 5.3dBm
Question & Answer
www.suntelecom-cn.com
FTTx FTTH Solutions