ISO/IEC 15045-2:2012（E）规定了一种网关体系结构，该体系结构在一个或多个广域网（WAN）和一个或多个家庭区域网（HANs）之间提供互连。在不打算未来扩展的情况下，不需要一个“简单网关”将一个WAN连接到一个HAN。它适用于“分布式网关”，在ISO/IEC 15045-1中也被称为复杂模块化网关。此外，它还规定了单个房屋中的独立网关如何进行互操作，以提供协调的功能。

ISO/IEC 15045-2:2012(E) specifies a gateway architecture that provides an interconnection between one or more Wide Area Networks (WANs) and one or more Home Area Networks (HANs). It is not needed for a "simple gateway" linking one WAN to one HAN where there is no intention of future expansion. It applies to a "distributed gateway," and is also referred to in ISO/IEC 15045-1 as the Complex Modular Gateway. Also, it specifies how separate gateways in a single house can interoperate to provide co-ordinated functions.