This part of IEC/IEEE 80005 describes the data interfaces of shore and ships as well as step by step procedures for low and high voltage shore connection systems communication for non-emergency functions@ where required. This standard specifies the interface descriptions@ addresses and data type. This standard also specifies communication requirements on cruise ships@ in Annex A. Application of this standard relates to annexes of IEC/ISO/IEEE 80005-1. This standard does not specify communication for emergency functions as described in IEC/ISO/IEEE 80005-1.