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ITU-T Recommendation G.984 is a family of recommendations that defines gigabit passive optical network (GPON) telecommunications access networks. It comprises four recommendations:

G.984.1, Gigabit-capable Passive Optical Networks (GPON): General characteristics, 2008, with amendment 1.
G.984.2, GPON: Physical Media Dependent (PMD) layer specification, 2003, with amendment 1 and 2.
G.984.3, G-PON: Transmission convergence layer specification, 2008, with amendments 1, 2 and erratum 1.
G.984.4, G-PON: ONT management and control interface (OMCI) specification, 2008, with amendments 1, 2, 3, corrigendum 1, erratum 1 and an implementer's guide.
G.988, ONU management and control interface (OMCI) specification, 2010.

The GPON OMCI recommendation G.984.4 draws on G.983.2, which defines the BPON management model. However, G.984.4 has been revised to stand alone as G.988. Future work on the PON management model is expected to appear only in the GPON space.

Next Generation - 10G

G.987 is being developed for 10GPON: 10Gbps downstream and 2.5Gps upstream – framing is ”G-PON like”. This compares to the standard for 10G-EPON. [1]

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 ITU-T Recommendation G.984 is a family of recommendations that defines gigabit passive optical network ([[GPON]]) telecommunications access networks. It comprises four recommendations:
-* [http://www.itu.int/rec/T-REC-G.984.1/en G.984.1], Gigabit-capable Passive Optical Networks (GPON): General characteristics, 2003.
+* [http://www.itu.int/rec/T-REC-G.984.1/en G.984.1], Gigabit-capable Passive Optical Networks (GPON): General characteristics, 2008, with amendment 1.
-* [http://www.itu.int/rec/T-REC-G.984.2/en G.984.2], GPON: Physical Media Dependent (PMD) layer specification, 2003, with amendment 1.
+* [http://www.itu.int/rec/T-REC-G.984.2/en G.984.2], GPON: Physical Media Dependent (PMD) layer specification, 2003, with amendment 1 and 2.
-* [http://www.itu.int/rec/T-REC-G.984.3/en G.984.3], G-PON: Transmission convergence layer specification, 2004, with amendments 1, 2, 3 and an implementer's guide.
+* [http://www.itu.int/rec/T-REC-G.984.3/en G.984.3], G-PON: Transmission convergence layer specification, 2008, with amendments 1, 2 and erratum 1.
-* [http://www.itu.int/rec/T-REC-G.984.4/en G.984.4], G-PON: ONT management and control interface (OMCI) specification, 2004, with amendments 1, 2, 3.
+* [http://www.itu.int/rec/T-REC-G.984.4/en G.984.4], G-PON: ONT management and control interface (OMCI) specification, 2008, with amendments 1, 2, 3, corrigendum 1, erratum 1 and an implementer's guide.
+* [http://www.itu.int/rec/T-REC-G.988/en G.988], ONU management and control interface (OMCI) specification, 2010.
-The GPON OMCI recommendation G.984.4 draws heavily on [[G.983|G.983.2]], which defines the BPON management model. However, the BPON standards are regarded as mature, and G.984.4 is being revised to stand alone. Future work on the PON management model is expected to appear only in the GPON space.
+The GPON OMCI recommendation G.984.4 draws on [[G.983|G.983.2]], which defines the BPON management model. However, G.984.4 has been revised to stand alone as G.988. Future work on the PON management model is expected to appear only in the GPON space.
 ==Next Generation - 10G==