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ČSN EN IEC 62056-8-8 This part of IEC 62056 describes how the DLMS/COSEM Application layer and the COSEM object model as specified in IEC 62056-5-3:2017, IEC 62056-6-1:2017 and IEC 62056-6-2:2017 can be used over the lower layers specified in the IEC 14908 series, forming a DLMS/COSEM ISO/IEC 14908 communication profile. This document is part of the IEC 62056 series. Its structure follows IEC 62056-1-0 and IEC TS 62056-1-1. Annex A (informative) provides examples of representative instances of data exchange. NOTE - This Annex A is included and referenced for consistency with other parts of the IEC 62056 suite, but it is empty. Annex B (normative) defines COSEM interface classes and related OBIS codes for setting up and managing the DLMS/COSEM communication profile for IEC 14908 networks. These interface classes and OBIS codes will be moved later to IEC 62056-6-2 and IEC 62056-6-1. Annex C (informative) provides an implementation guide and specifies a migration path from Utility Tables based applications to DLMS/COSEM based applications. Annex D (informative) specifies the OSGP-AES-128-PSK security suite for optional use on the adaptation layer level. Annex E (normative) specifies the repeating mechanism over the ISO 14908-3 Power Line Channel network. Annex F (informative) specifies ISO/IEC 14908-3 Registration and monitoring of LNAPs.