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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