G.983
Encyclopedia
ITU-T Recommendation G.983 is a family of recommendations that defines Broadband
Passive Optical Network (BPON) for telecommunications Access networks. It originally comprised ten recommendations, G.983.1 through G.983.10, but recommendations .6–.10 were withdrawn when their content was incorporated into G.983.2. The current recommendations are
Although G.983 is directed at BPON, the GPON recommendations draw heavily on it, especially G.984.4, which defines the management model for GPON ONTs.
The current view is that the BPON standards are mature, and no further work will be done on them after the 2007 round. The GPON OMCI definition will be revised to stand alone, rather than citing G.983.2.
Broadband
The term broadband refers to a telecommunications signal or device of greater bandwidth, in some sense, than another standard or usual signal or device . Different criteria for "broad" have been applied in different contexts and at different times...
Passive Optical Network (BPON) for telecommunications Access networks. It originally comprised ten recommendations, G.983.1 through G.983.10, but recommendations .6–.10 were withdrawn when their content was incorporated into G.983.2. The current recommendations are
- G.983.1, Broadband optical access systems based on passive optical networks (PON), 2005, with amendment 1 and erratum 1. Includes the definition of the churning cipherChurning (cipher)Churning is an encryption function used to scramble downstream user data of the ATM passive optical network system defined by the ITU G.983.1 standard.The standard states that churning "offers a low level of protection for data confidentiality"...
. - G.983.2, ONT management and control interface specification for B-PON, 2005, with amendments 1 and 2, erratum 1 and an implementer's guide.
- G.983.3, A broadband optical access system with increased service capability by wavelength allocation, 2001, with amendments 1 and 2.
- G.983.4, A broadband optical access system with increased service capability using dynamic bandwidth assignment, 2001, with amendment 1 and corrigendum 1.
- G.983.5, A broadband optical access system with enhanced survivability, 2002.
Although G.983 is directed at BPON, the GPON recommendations draw heavily on it, especially G.984.4, which defines the management model for GPON ONTs.
The current view is that the BPON standards are mature, and no further work will be done on them after the 2007 round. The GPON OMCI definition will be revised to stand alone, rather than citing G.983.2.