SCTE CARIBBEAN A Velez August 2012 · SCTE CARIBBEAN A Velez August 2012 . ... •Primarily used for headend to node and/or hub to node . 1550 nm ... Super Polish

A whole new light, growing brighter!

SCTE CARIBBEAN A Velez

August 2012

Confidential and Proprietary

Fiber Transmission Characteristics



Fiber cable: core /cladding layer diameter Multi-mode fiber (MMF): 50/125 or 62.5/125 µm

Single-mode fiber (SMF): 9/125 µm

Single Mode vs. Multimode Fiber

SMF core

Cladding layer Light path

MMF core

Cladding layer Light path


Core/Cladding Attenuation Bandwidth Applications/Notes

Multimode Graded-Index

@850/1300 nm @850/1300 nm

50/125 microns 3/1 dB/km 500/500 MHz-

km Laser-rated for GbE LANs

50/125 microns 3/1 dB/km 2000/500 MHz-

km Optimized for 850 nm VCSELs

62.5/125 microns

3/1 dB/km 160/500 MHz-

km Most common LAN fiber

100/140 microns

3/1 dB/km 150/300 MHz-

km Obsolete

Singlemode

@1310/1550 nm

8-9/125 microns

0.4/0.25 dB/km HIGH!

~100 Terahertz Telco/CATV/long high speed LANs


Single Mode vs. Multimode Fiber


1310 nm • Higher loss per kilometer of fiber cable (0.35 dB/km) • Relatively low cost transmitters • Wide range of output powers (4 mW to 25 mW) (3 dBm

to 15 dBm), providing flexible implementation options • Distance limited, unable to be amplified • Primarily used for headend to node and/or hub to node

1550 nm • Lower loss per kilometer of fiber cable (0.25 dB/km) • Relatively high cost transmitters • Can be amplified • Fixed output level from transmitters, uses EDFAs for

wide range of output levels • Primarily used for headend to hub interconnects, but

can also be used to feed nodes from headends and hub sites


1310 nm vs. 1550 nm


Fiber Optic Cable

9 µm

125 µm

Core

Cladding

Refractive Index Profile

- The core has a different refractive index than the cladding, keeping the light in the core. - A plastic jacket is applied over the bare fiber to protect it. -For OSP (outside plant) cables, multiple color coded fibers are bundled together into a sheath.

-Fiber counts can range from 1 to 244 fibers per sheath.

-High count cables are subdivided into color coded tubes or wrapped with color coded threads.

-Usually, no more than 12 fibers are included in one tube.

250 µm

Jacket

Single Mode Fiber Dimensions


Passive Components


Fiber Optic Couplers

Fiber Optic Couplers are similar to RF Directional Couplers in that a percentage of the signal (light) is passed through the high loss leg, while the remainder of the signal passes through the low loss leg. Unlike DCs, fiber couplers are specified in terms of percentages, not dB loss. Typical values are shown in the table, along with a typical conversion table to dB. Couplers can be provided as loose fibers or pre-packaged in modules or splice trays. They can also be purchased connectorized or with bare fibers. Couplers can also be provided with multiple outputs. Typically, these are described as 1xn where n is the number of outputs. Different coupling ratio couplers can be incorporated into 1xn couplers, but this is not common.

Coupling Ratio dB loss1/99 0.2/21.55/95 0.4/14.5

10/90 0.6/10.820/80 0.1/7.530/70 1.8/5.640/60 2.5/4.450/50 3.4/3.4


Passive Components


Fiber Optic Attenuators

Fiber optic attenuators are designed to do the exact same thing RF attenuators do - cause a predictable loss of signal without impacting return loss. Optical attenuators do this is several different ways. “Air-gap” attenuators and “microbend” attenuators are common, inexpensive types. Attenuators that use “lossy” fiber are more precise, and more expensive. Air-Gap Attenuators

•Designed with a small gap between the two fiber ends •Length of gap determines attenuation •Can be provided as either a fixed value or a variable attenuator •Return loss can be a problem with air-gap attenuators

Microbend attenuators •Loss is caused by light “leaking” out of the core and into the cladding by bending the fiber. •Bending too far can fracture the fiber •Loss is determined by amount of bend and number of microbends

Both air-gap and microbend type attenuators require the use of a power meter to accurately determine the amount of loss created by the device.


Passive Components


Fiber Optic Connectors

Two common connector types are used for SMF - the FC and the SC. The FC is a screw on connector, while the SC is a snap-in connector. The SC is more widely used in cable today as it provides higher precision in lining up the fibers. Fiber alignment is critical to the operation of fiber optic networks. As the core of the fibers is very small (<10 µm), any misalignment translates into loss and reflection.

Off-center alignment, inefficient transfer of light and reflections.

Air-gap, allowing source light to expand to form a cone, causing signal loss and reflections.


Passive Components


Fiber Optic Connectors

Connector Polish - Connectors use various types of polish to reduce insertion loss and to minimize reflections. Several common types are shown below:

Flat 25 dB RL

PC (Physical Contact or Polish Convex)

30 dB RL

Super Polish 40 ~ 50 dB RL

(also, Ultra Polish >50 dB RL)

Angle 60 ~ 70 dB RL

For CATV use, return loss greater than 50 dB is required. For high power applications, greater than 60 dB return loss is required. For this reason, 1550 nm applications typically will use angle polished connectors (APC). Because of the angle on an APC (8°), any reflections will be outside the capture range of the fiber core. (APC connectors are always green while PC & UPC connectors are blue.)


Passive Components


Fiber Optic Transmitters Two types of laser diodes are typically used in the CATV industry - Fabry-Perot (FP) and Distributive Feed Back (DFB). FP Lasers

• Less expensive •Non-linear over large bandwidths • Produce unwanted sidebands, which causes interference to desired

signals • Can be used for digital carriers or for a limited number of video carriers

DFB Lasers

•More expensive • Linear up to 1002 MHz •More consistent in performance and distortions • Can be used for large quantities of digital or video carriers


Active Components


Fiber Optic Transmitters In the CATV industry, AM (Amplitude Modulated) transmitters at both 1310 nm and 1550 nm are used. At 1310 nm, most lasers are directly modulated - the input signal controls the laser bias current, controlling the amount of light created by the laser (the higher the bias current, the higher the light output).

DFB Optical Output (SMF) RF Input

At 1550 nm, most lasers are externally modulated - the laser creates a steady level of light energy, and the modulation occurs external to the laser.

RF Input V RF

Bias Control V BIAS

3 dB - Coupler

Phase Modulator

PM fiber in

SMF fiber out DFB


Active Components


Erbium-Doped Fiber Amplifiers (EDFA)

At 1550 nm, it is possible to amplify the optical signal using an EDFA. Several standard EDFA designs are shown below.


Active Components


Fiber Optic Receivers Fiber optic receivers are designed for both field and headend applications. Key design considerations are low noise performance, linearity over the bandpass of concern, and RF output levels sufficient for the application. For field mounted fiber optic receivers (nodes), modularity is an additional key consideration. Nodes may require from one to four outputs, RF output levels from 42.0 dBmV to 58.0 dBmV, optional return path lasers, status monitoring, and other options based on system requirements. Most typical nodes are capable of receiving both 1310 nm and 1550 nm optical signals.


Active Components


The SBS is the effect produced by acoustic waves traveling back in the fiber due to distance and the light incidence on the fiber. In other words, when the light has traveled a while inside the Fiber, it begins to suffer from dispersion so the original’s signal quality is compromised by the degradation of its components. When the power input at the fiber is too high, the reflection of the acoustic wave into the fiber will be worse, and in order to prevent this, the power entering a fiber is limited.


SBS: Stimulated Brillouin Scattering


Calculating Optical Loss Budget


Link Budget: Optical output power minus minimum required input level to receiver, specified in dB.

14 km Fiber Cable Optical Tx Optical Rx

1X4

1X4 Coupler

Splice Splice

Optical output power: 13.0 dBm Coupler loss: 7.0 dB Splice loss: 0.5 dB Fiber cable loss @ 0.35 dB/km: 4.9 dB Total loss: 12.4 dB Optical input power to Rx: 0.6 dBm

Loss Budget; Cable, connector and coupler loss, given in dB.

Link Budget vs. Loss Budget

Calculating Optical 1310 Loss Budget


Link Budget: Optical output power minus minimum required input level to receiver, specified in dB.

14 km Fiber Cable Optical Tx Optical Rx

1X4

1X4 Coupler

Splice Splice

Optical output power: 14.0 dBm Coupler loss: 7.0 dB Splice loss: 0.5 dB Fiber cable loss @ 0.25 dB/km: 3.5 dB Total loss: 11.0 dB Optical input power to Rx: 3.0 dBm

Loss Budget; Cable, connector and coupler loss, given in dB.

Calculating Optical 1550 Loss Budget

Link Budget vs. Loss Budget


CALCULATIONS FOR NARROWCAST

1 ) TOTAL NUMBER OF NARROWCAST TRANSMITTERS

EXAMPLE: 19 NARROWCAST UNITS LOG OF 19 = 1.28 X 10 = 12.8 2 ) THEN OUTPUT POWER OF NARROWCAST XMTRS.

EXAMPLE: 10 + 12.8 = 22.8 COMPOSITE POWER

3 ) THEN TAKE COMPOSITE LEVELS MINUS THE MUX COMBINE LOSS

EXAMPLE: 22.8 - 3.2 = 19.6 COMPOSITE POWER LEAVING MUX 4 ) THEN COMPOSITE POWER LEAVING MUX - FIBER LOSS OF 1.6

EXAMPLE: 19.6 - 1.6 = 18 dB COMPOSITE LEVELS

XMTRS COMPOSITE POWER


PROCESS FOR CALCULATION PER WAVE LENGTH OR PER CHANNEL

1) TAKE THE OUTPUT OF ONE NARROWCAST TRANSMITTER MINUS MUX LOSS

EXAMPLE: 10 dBm - 3.2 = 6.8 PER WAVE LENGTH 2) PER WAVE LENGTH LEVEL MINUS FIBER LOSS

EXAMPLE: 6.8 - 1.6 = 5.2 PER WAVELENGTH (ENTRANCE TO OPTIPLEX ) 3 ) THEN BROADCAST INPUT MINUS THE OPTIPLEX LOSS

EXAMPLE: 12.1 RF - 11.2 = .9 BC OUT OF OPTIPLEX 4 ) THEN THE PER WAVELENGTH MINUS - CASCADED OPTIPLEX LOSS

EXAMPLE: 5.2 - 5.5 - .4 PER WAVELENGTH 5) TAKE BROADCAST RF LEVEL MINUS 8 DB DELTA

EXAMPLE:

.9 - 8 = - 7.1 REQUIRE NC LEVEL 6 ) THEN TAKE PER WAVELENGTH LEVEL MINUS ATTEN. TO PROVIDE 8 DB DELTA NC LEVEL AT THE NODE

EXAMPLE: .4 - 8( ATTENUATOR) = - 7.6 NC LEVEL AT THE NODE


WHEN USING " OPTICAL AMPLIFICATION" FOLLOW THE FOLLOWING STEPS

1 ) TAKE THE LOG LEVEL OF ONE NARROWCAST XMTR AND CHANGE THE ANSWER TO A NEGATIVE NUMBER

EXAMPLE: LOG 19 NARROWCAST UNITS = 1.278 X 10 = 12.8 CHANGE TO NEGATIVE -12.8

2) THEN TAKE THE NEGATIVE NUMBER AND ADDED TO THE OPTICAL AMPLIFIER POWER LEVEL

EXAMPLE: - 12.8 + 17 ( OPTICAL OUTPUT POWER LEVEL) = 4.2 DB PER WAVELENGTH

THEN MAKE EDFA CORRECTION FACTOR ( 1.5 DB FOR ONE OPTICAL AMP, AND (1 DB FOR EACH ADDITIONAL EDFA)

EXAMPLE: 4.2 - 1.5 = 2.7 PER WAVELENGTH AFTER EDFA CORRECTION FACTOR


Fiber in HFC Applications


Evolution not Revolution


HFC Conventional Node + n

Fiber Deep Node + 0

Fiber to the Home FTTH 100% Fiber with NIU

Fiber on Demand FTTH & Node + 0

Fiber Deep Nodes

Network Architectures – Higher Bandwidth

Same HE equipment

FTTH Nodes

Scalable Nodes Fiber Deep Nodes


Hybrid Fiber Coax (HFC) 500 – 1500 homes per serving area

3 – 7 amplifiers in cascade

H F C

Rebuild Costs

Architecturally Neutral

Hub

Prtimaru=y Hub Headend

DWDM WDM

Primary Ring Fiber Deep Architecture

100 – 400 homes per serving area increased bandwidth

No amplifiers improved reliability and economics

F D

Application


HEAD END TO HFC NODES


Fiber Deep – FWD Architecture

NC4000 NC4000 NC4000 NC4000

-3.3

OP91S2S-EQ

GRYL

PUOP91S2S-70

-1.9

-5.6

PU

YL

GR

OP91S2S-80

-1.3

-7.3

PU

YL

GR

The forward signal is shared for all the cluster trough one single fiber.

This is possible by using field couplers (OP92S2S-xx) The forward FD service area is equal to the HFC service

area Higher capability of segmentation and monitoring


BP3108DR3002

-3.3

OP91S2S-EQ

GRYL

PUOP91S2S-80

-1.3

-7.3

PU

YL

GR

OP91S2S-70

-1.9

-5.6

PU

YL

GR

AR4001

DT4030NTR4000-PI

AR4001

DT4030NTR4000-PI

AR4001

DT4030NTR4000-PI

AR4001

DT4030NTR4000-PI

1 2 3

4AT3308

Fiber Deep – Return Path


FIBER DEEP DESIGN GETTING CLOSER WITH FIBER TO THE HOME






Emerging MSO Fiber Applications


Fiber On Demand - TDM Access + LAN

Fiber On Demand

NI3030E DS4004

T1/E1 CPE

Headend T1/E1

Cellular Base Station

Base Station Controller

100 Mbps Fiber 2.125 Gbps 2.125 Gbps

4 T1/E1s

100 Mbps Pipe

80+ km

100 Mbps RJ45

100 Mbps

100 Mbps RJ45

4 T1/E1s

Unified TDM and Data Access over a Single Fiber

1310, 1550, CWDM Transport


Cable Optimized Cell Tower Backhaul Solution

Mobile Switching Center

CESoETH

Gigabit Ethernet

4 * T1/E1

Gigabit Ethernet

GT3410A (CPE)

Carrier Ethernet Transport

Base Station

Daisy Chained GT3410A CPE

12 * T1/E1 + Ethernet

HFC Transport

Cellular Base Stations

Cell Tower

Fiber On Demand Network

Gigabit Ethernet

CWDM/DWDM Transport

Cellular Ethernet Base Stations

GT3410A Headend Chassis

Base Station Controllers / Radio Network Controllers Core Cellular Network

2G 2.5G 3G HSDPA HSUPA Services

Gigabit Ethernet

Gigabit Ethernet

Ethernet Switch/Routers Core Data Switching Network

Gigabit Ethernet

Media Converter GT3410A CPE


NI3030E

AR4001

DT4030N-00TR4000

DS4004U

TFB

1550

TR4000

MC1301P

EMBEDDED ETHERNET CUST.

AT3306G-N-2

DT4030N-00TR4000

OP91M2S-0.9

-1.2

BKBL

CLOP3401*-0.6

-1.0

BP3104CDR3021

DR3021

INSIDE NODE

16 NODES PER NIJC-2235 SERIES

JUMPER

TR4540-0000-PI

HFC NODE 1X4 CONFIGURATION AND ETHERNET SERVICE


Emerging MSO Fiber Applications

DATA TRANSPORT POINT TO PONT


1550 TRANSPORT TO NODES-RETURN-GEPON


NODES FORWARD-RETURN-GEPON


Advanced Optical Systems


Digital Return Parts

Headend or Hub

Analog Out D to A

Headend or Hub

Analog OutAnalog Out D to A

Digital Optical Rx DigitalModulated Light

Appprox 1 Gbps

5-42 MHz

Node

Node

AnalogReturn from Coax

Plant

DigitalReverse

A to DAnalog In

Node

Node


Plant

DigitalReverse

A to DAnalog InAnalog In5-42 MHz

Appprox 1 Gbps

DigitalModulated Light

Digital Optical Tx

Cable modem

CMTS Performance independent of distance


xWDM Technologies with LcWDM

CWDM

1271 1291 1311 1331 1351 1371 1391 1431 1411 1451 1471 1491 1511 1531 1551 1571 1611 1591

Water Peak

O - Band 1260 - 1360

E - Band 1360 - 1460

S - Band 1460 - 1530

C - Band 1530 - 1565

L - Band 1565 - 1625

1200 1300 1400 1500 1600 Wavelength ( nm )

F i b e

r A t t e

n u a t

i o n

( d B

/ k m

)

0 . 0

0 . 5

1 . 0

1 . 5

2 . 0

2 . 5

3 . 0

ITU DWDM Wavelengths LcWDM Wavelengths

LcWDM DWDM


Node


Plant

DigitalReverse

A to DAnalog In

Node

Node


Plant

DigitalReverse

A to DAnalog InAnalog In

Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


DigitalMultiplexer

Digital Optical Tx

5-42 MHz

5-42 MHz

Appprox 1 Gbps

Appprox 2 Gbps


Headend or Hub

Analog Out D to A

Headend or Hub

Analog OutAnalog Out D to ADigital Optical Rx


Appprox 1 Gbps

5-42 MHz

Analog Out D to AAnalog OutAnalog Out D to A

Appprox 1 Gbps

5-42 MHz

DigitalDemultiplexer

Appprox 2 Gbps

Double Bandwidth

1. Swap Digital Transceiver

module

2. Double the capacity

Scalability


Node


Plant

DigitalReverse

A to DAnalog In

Node

Node


Plant

DigitalReverse


Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


DigitalMultiplexer

Digital Optical Tx

5-42 MHz

5-42 MHz

Appprox 1 Gbps

Appprox 2 Gbps

Digital ModulatedLight

Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


DigitalMultiplexer

Digital Optical Tx

5-42 MHz

5-42 MHz

Appprox 1 Gbps

Appprox 2 Gbps

Digital ModulatedLight

2:1Optical

Mux

Quadruple Bandwidth

4-Way segmentation

over single fiber


Node

Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


Appprox 1 Gbps


Digital Optical Tx

Node

Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


Appprox 1 Gbps


Digital Optical Tx

Node

Node


Plant

DigitalReverse

A to DAnalog InNode


Plant

DigitalReverse


Appprox 1 Gbps


Digital Optical Tx

DWDMMux

λ1

λ2

λ3λ1+2+3+.. .

Hub

λ20

Mega Bandwidth

10 CWDM or 40 DWDM

lambdas over single fiber


Digital Return Concatenated

TR4xxxDT4030N101010101010

TR4xxxDT4030N

A-D 101010101010

101010101010

+

DT 4030 N

A - D 101010101010

5 MHz 50 MHz

5 MHz 50 MHz

5 MHz 50 MHz

A - D 101010101010

DR 3002

DT 4030 N

A - D 101010101010

101010101010

01010101010100

TR 4 xxx DT 4030 N

A - D 101010101010

TR4xxx

TR4xxx

BP3108

101010101010

01010101010100

Digital Return Transmitter

Digital Return Reciever

Digital Return Transmitter

DIGITAL TRANSCIEVER

BACKPLATE


Fiber Serving Area Concatenated

Broadcast Fiber

Tapped Coax Cable

Fiber Node

Subscriber Tap Coax Line Splitters/Couplers

Legend

Return Fiber

50-860 MHz

A B C D

A A+B

Digital Return

A+B+C A+B + C+D

Passive Coax and Digital Return


Fiber Serving Area CWDM Return

50-860 MHz

A B C D 1430 nm 1430-1450 nm

Digital Return

DEMUX

1430-1450 1470 nm

1430-1450 1470 1490 nm

ABCD

Passive Coax and Digital Return


RFoG Sample System Design

AT3553A-BAFA4524S

DR3021

DR3021

BP3104C

TR4440B1570

TR4440B1550 DT4230N

DT4230N

Headend Hub

-7.0

MP

O

OP91S4D-EQ-R2-MPFA3524S13.8 dBm

6.2dBm

21 dBm

11.9 dBm

-6.6

OP31S4S-EQ

Up to 18km

-6 dBm

Input Level

between 5 –

10 dBm

Up to 35km

-5.1

OP31S3D-EQ

BP-A4

OP35F1D-21

-0.8

AT3510G-21-1 -3dB

NoteBC configuration shown

supports up to 24 V-hubs

-13.6

OP91S16-EQ

MP

O

MP

O

Net

wor

k

From

ED

FA

OR4148-2.1dB

1310 nm

LPF LPFLPFLPF

-1.8dB

NIU

Powers 256 Home Service Area


RFoG Reference Design

Fiber all the way to the home

Broadcast Tx EDFA

Analog RPR RFPON

CPE

Splitter

WDM

1550 nm

1610 or 1310 nm

10-20 km


RFOG HEAD END TO HUB FIBER ALL THE WAY TO THE HOME


RFPON Sample System Design

FA4524S

MPO

MP

O

MP

O

To/from PON

Net

wor

k

From

ED

FA

OR4168-2.1dB

1590 nm 1310 nm1490 nm

LPF LPFLPFLPF

-1.8dB

-8.1dB

-4.8dB

DR3021

DR3021

BP3104C

TR4440B1570

TR4440B1550 DT4230N

DT4230N

Headend Hub

-7.0

MP

O

OP91S4D-EQ-R2-MP

CP8016U-55-41Fiber INP RF

Fiber OUT

-13.6

OP91S16-EQ21 dBm

11.9 dBm

Up to 18km

-6 dBm

Input Level

between 5 –

10 dBm

Up to 37km

TC4108VFem

ale

GE4132MRJ-45

100/1000 Mbps

TRTR Fiber

GE4132MRJ-45

100/1000 Mbps

TRTR Fiber

1530

1550

-1.5

OP94M5H-1-00

CWDM COM OUT

CWDM Loop IN

1570

1590

1610

-2.01530

1550

1570

1590

1610

CW

DM

IN

to OU

TC

WD

M

IN

-1.4

-1.7

OP34D5H-0-00

MC

1810

M

Fiber INP

RJ-

4510

0/10

00 M

bps

TR4440B1550

ONU-631HA-11Fiber IN

P

RJ-45100/1000 Mbps

TR4440B1530

TR4440B1570

TR4440B1590

AT3553A-BA

FA3524S13.8 dBm

6.2dBm-6.6

OP31S4S-EQ

-5.1

OP31S3D-EQ

BP-A4

OP35F1D-21

-0.8

AT3510G-21-1 -3dB

256 Residential Service Area plus 128 PON Subscribers


BC/NC Combining Sample System Design

AT1503A-BA

OP31S2D-60

-2.6

-4.4FA3520S

OS42S1S

-1.5

Range +25 dBm max

OP4528K-11.2

-4.2OP4528M

-11.2

-4.2

8.7 miles-5.5dB

15 miles-9.7dB

AT3510-20-1

AT3510-21-1

AT3510-22-1

AT3510-23-1

AT3510-24-1

AT3510-25-1

AT3510-26-1

AT3510-27-1

AT3510-28-1

AT3510-29-1

OP

35M4J

OP

35M4K

OP

35M4L

-2.5

OP31S2D-60

-2.6

-4.4

OS42S1S

-1.5

Range +25 dBm max

8.7 miles-5.5dB

15 miles-9.7dB

15.6 dBm

13.1 dBm17.5 dBm

7.6 dBm

5.2 dBm

FA4517S

-1dB

16.4

dBm

10.1 dBm

6.7 dBm

8.6 dBm

6.1 dBm

16 unique BC/NC combinations

BC 2.5 dBm

Pad N

C as needed to

create a 8dB B

C/N

C delta

VHub

FA4524SPower

Limiting

Creates 16 Unique Programmed Node Service Areas


V-HUB in Distribution application

NC to V-Hubs

8.1 dBm(PWL)

AT3510G-20-1

AT3510G-21-1

AT3510G-22-1

AT3510G-23-1

24km/-6 dB

AT3553A-BA

24km/-6 dB

9.5 dBm

OP

35M4-J

OP

35M4-K

-1.9

AT3510G-24-1

BP3104Cx5

OP

35D4-J

OP

35D4-K

OP

35D4-L

-5.1 d

Bm(PW

L)

OP

35D4-M

DR3021x17

24km/-6dB

OP

35D4-N

-3.7

BC to V-Hubs

OP4538-K-11.2

-2.9

-6.6

OP91S4S-EQx3

GR

-6.6

GR

-6.6

GR

3.5 dBm(PWL)

OE4130STR4000

To Node 1ST for V-Hub Monitoring

V-Hub

Returns From Nodes

DWDM Returns from Nodos to Hub

Splice Enclosure Located at V-Hub

24km/6 dB

3.5 dBm

Note: Padding of each individual NC Tx in the Suba HE may be required to obtain 8dB BC/NC

delta

OP

95M

8-K

Expansion port

OP

95M

8-M

Expansion port

13.6

dBm(C

)

.9 dB

m(PW

L)Wors

e

1ST2ST3ST4ST1MC2MC3MC4MCGAAGAB

GACPNA

Futu

re

-6.6

GR

-6.6

GR

PNBPNC1RJ

2RJ

3RJ

-2.7

FA4521S

OP95F1S-37

-0.8CL BL

BK

Spare(if required)

-2dB

FA4512S

AR201

DT4230NTR4000

AR201

DT4230NTR4000

DX4515-21

DX4515-20


>60 km RFoG ONT

Splitter

Broadcast TX

EDFA

Digital RPR

WDM

1550 nm

1610 and 1310 nm

1490 and 1550 nm

C/DWDM wavelength selected by design

RFoG VHub™

Addressing the Challenge: Reach

Fiber all the way to the home

A whole new light, growing brighter! THANK YOU

Al Velez Director Field Services, Aurora Networks

[email protected]

ANY QUESTIONS

mailto:[email protected]�

Documents

SCTE CARIBBEAN A Velez August 2012 · SCTE CARIBBEAN A Velez August 2012 . ... •Primarily used for headend to node and/or hub to node . 1550 nm ... Super Polish