BS EN 62820-1-2:2017规定了组成、功能和性能的技术要求， 使用互联网协议（IP）构建内部通信系统的性能和测试方法，以及 它是对IEC 62820-1-1的补充。本文件适用于住宅和住宅的IP楼宇对讲系统 商业建筑。交叉引用:EN 62820-1-1（IEC 62820-1-1:2016）ASIEC 62820-1-1:2016ITU-T P501ITU-T P51IETF RFC 791ITU-R BT500-13ITU-T P832ITU-T P57IETF RFC 2460购买本文件时提供的所有当前修改件均包括在内。

BS EN 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.Cross References:EN 62820-1-1 (IEC 62820-1-1:2016) ASIEC 62820-1-1:2016ITU-T P501ITU-T P51IETF RFC 791ITU-R BT500-13ITU-T P832ITU-T P57IETF RFC 2460All current amendments available at time of purchase are included with the purchase of this document.