Summary

This Recommendation focuses on the OMCI specifications related to support for ONUs with ADSL and VDSL interfaces.

In the B-PON system defined in ITU-T Rec. G.983.1 [1], the ONTs are located at the customer site and the ONUs are generally located at the curb or cabinet. The B‑PON element management system will only manage ONTs/ONUs as part of the B-PON system through the OLT using the ONT management and control interface (OMCI).

The OMCI specifications are based on ITU-T Rec. G.983.2 [2]. Some enhancements are needed for the support of ADSL and VDSL interfaces. This Recommendation covers configuration, fault and performance management enhancements to ITU-T Rec. G.983.2. Attributes are taken from the G.99x series of Recommendations which relate to DSL technology. This Recommendation uses the approach described in ITU-T Rec. G.983.8 which focuses on other interfaces.