In last article, we introduced the concept and common applications of the POI system. This article will focus on the POI system design and product features. The common design of POI System：1) Two-way co-channel mode for signal sending and receiving. 2)One-way split mode for signal sending and receiving. POI system product features:1. Compatible with multiple systemsMeet DTV, 2G, 3G,……

POI is the abbreviation of POINT OF INTERFACE, that is, a multi-system integration platform. It is mainly used for multi-band and multi-signal combination to achieve compatible coverage of multi-network signals. It realizes multi-system, multi-band signal transceiver and cable transmission: and is able to meet the versatile requirements of DTV, 2G,  3G, 4G,  5G (can support LTE MIMO) etc. The……