Your

new fibre optic

access network

transport

solution

Broadband Passive Optical Network

Internat ional Telecommunicat ion Union

G.983.1 – Broadband optical access systems based

on Passive Optical Networks

Specifies an optical access system with symmetrical

line rates of 155.520 or 622.080 Mbit/s and

asymmetrical line rates of 155.520 Mbit/s upstream

and 622.080 Mbit/s downstream.

G.983.2 – ONT management and control interface

specification for B-PON

Specifies requirements for the OMCI, managed entities

of a protocol-independent Management Information Base

and protocol/detailed messages for the ONT manage-

ment and control channel.

G.983.3 – A broadband optical access system with

increased service capability by wavelength allocation

Adds an additional wavelength band to a G.983.1

B-PON to enable the distribution of unidirectional or

bidirectional video broadcast or data services.

G.983.4 – A broadband optical access system

with increased service capability using dynamic

bandwidth assignment

Specifies the enhancements to a G.983.1 B-PON to

allow the use of dynamic bandwidth assignment.

G.983.5 – A broadband optical access system with

enhanced survivability

Specifies protection features for a G.983.1 B-PON.

G.983.6 – ONT management and control interface

specifications for B-PON system with protection

features

Specifies the OMCI for a B-PON system with protection

features.

G.983.7 – ONT management and control interface

specification for dynamic bandwidth assignment

(DBA) B-PON system

Specifies the OMCI for a B-PON system using dynamic

bandwidth assignment.

ITU-TThe leader on B-PONRecommendations m e a n s

02

.20

03

TS

Bp

ro

mo

@it

u.in

t

Worldwide Passive Optical NetworksEquipment Revenue Forecast

1.000

750

500

250

0

Source: In-Stat/MDR 3/02

2001 2002 2003 2004 2005 2006

US

$ M

illio

ns

• Support for a wide range of narrowband and broad-

band services like:

- POTS

- ISDN

- Data

- Cable TV

- Video on demand

- LAN interconnection

- Videoconferencing

• Because B-PON is independent from bit rates, signal

formats (e.g. digital or analogue, SONET/SDH, etc.)

and protocols (Internet Protocols, Ethernet, ATM,

etc.), only the equipment needed for delivering specific

services needs to be added at the ends of the net-

work when the time comes to add new services to

existing customers or to add new customers.

For more information on ongoing PON Recommendation

activities, including Gigabit-PON (G-PON), please check

the ITU-T Study Group 15 website at:

www.itu.int/ITU-T/com15

BPON.indd 1 05.03.2003, 15:31:31

G.983.1 downstream: 1530 nm ± 50 nm

G.983.1 upstream: 1310 nm ± 50 nm

G.983.3 basic band downstream: 1490 nm ± 10 nm

SNI

TDM Time Division Multiplex

TDMA Time Division Multiple Access

CC Cross Connect

NB Narrow Band

BB Broadband

ONU Optical Network Unit

OLT Optical Line Termination

SNI Service Node Interface

ITU-T Study Group 15 is responsible for the development of Recommendations in the area of “Optical systems for access networks” (Question 2).

See http://www.itu.int/ITU-T/studygroups/com15/sg15-q2.html for more details.

B-PON Access System

Access

NodeTDM

NB

NB

NB

CCNBOLT

NBONU

NBONU

NBONU

BB

TDMA

0-20 km

1:32 (64) Optical splitter

BPON.indd 2 05.03.2003, 15:31:34