Building intercom systems - Part 1-2: System requirements - Building intercom systems using the internet protocol (IP)
建筑对讲系统 - 第1-2部分:系统要求 - 使用互联网协议(IP)构建对讲系统
IEC 62820-1-2:2017 specifies the technical requirements for the composition, functions, performance and test methods of building intercom systems using the internet protocol (IP), and it is a supplement to IEC 62820-1-1. This document is applicable to the IP building intercom systems for both residential and commercial buildings.