Do You Know Anything About POI System?

时间： 2023-06-14 来源：UIY News

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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 POI is mainly used for indoor coverage of large buildings such as convention centers, exhibition halls, subways, railway stations, airports, and government offices. The system uses a frequency combiner and a hybrid combiner to combine mobile signals of different operators and multiple standards and introduce them into the antenna feeder distribution system to make full use of resources and avoid repeated investment in the construction of indoor distribution systems.

To avoid interference, POI is divided into two platforms, uplink and downlink, which transmit uplink and downlink signals separately. As a bridge connecting wireless communication donor signals and distributed coverage signals (leakage cables and antenna arrays, etc.), POI’s main function is to combine and split the uplink and downlink RF signals of each operator, and filter out the interferences between the frequency bands.

The main function of the POI uplink part is to collect signals from mobile phones of different standards and transmit them to the uplink POI through antenna collection and feeder transmission, and then send signals of different frequency bands to different operators’ base stations after the POI detects them.

The main function of the POI downlink part is to synthesize the carrier signals of various operators and different frequency bands and send them to the antenna distribution system in the coverage area.

Main Features:

To combine the signal of mobile communication equipment and split the signal of antenna feeder distribution system.

To suppress the useless signals;

To filter and transmit the signals of mobile communication equipment and antenna feeder distribution system;

Real-time and accurate monitoring function.

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本文由上山打老虎转载自UIY News，原文标题为:Quick Understanding of POI System，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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产品型号

品类

Operating Frequency(MHz、GHz)

Power Output CW (W)

Power Gain @CW(dB)

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Gain Flatness Type(dB)

Input VSWR

Odd Harmonics @CW Type(dBc)

Even Harmonics @CW Type(dBc)

Noise Figure(dB)

Spurious Signals Type(dBc)

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Rosenberger（罗森伯格）被动组件（合并器/双工器/耦合器/分离器/衰减器）选型指南

目录- Company profile and Product introduction Passive Components Technology Combiners Filters Duplexers Couplers Splitters Attenuators Hybrids Termination Loads Point of Interface Service

型号- CB-13-POI-64F-03,A-XX-150-N,CB-3-GDU-64F-10,HM-3-8F-64F-T,CB-3-DWE-64F-05,L-2-64M,CB-8-POI-DF-13,DC-XX-8F-64F-T,A-XX-150-D,CB-2-CG-DF-17,DCB-2-LG-DF-01,L-50-XX-T1,DFT-09-55-DF-02,L-10-64F-T1,L-50-XX,CB-5-GDULE-DF-16G,A-XX-100-N-T1,CB-2-CU-DF-H,DX-08-15-NF-01,HM-3-BF-DF-04D,DX-18-75-NF-15,L-2-XX,L-100-XX-T,A-XX-100-N-T,L-50-XX-T,CB-7-POI-DF-19,CB-3-GDU-DF-10,L-30-XX,S-XX-7F-NF-01,A-XX-200-N,DC-XX-7F-NF,A-XX-100-D-T1,A-XX-100-D,A-XX-100-D-T3,A-XX-50-D-T,A-XX-100-D-T,A-XX-200-D,A-XX-50-N-T1,A-XX-2-N/A-XX-5-N,L-100-XX-T1,L-5-XX,L-1-XX,A-XX-100-N,DFT-09-30-D-01,L-10-XX,L-200-XX,HM-3-AF-DF-05,HM-3-AF-DF-06,HM-6-AF-DF-01,DCB-2-CG-DF-18,HM-6-AF-DF-02,CB-2-LG-DF-07,A-XX-50-N-T,CB-3-GDL-DF-02G,CB-4-GDWE-64F-01,HM-3-7F-DF-02,HM-3-8F-DF-02,L-20-XX,HM-3-7F-NF-01,S-XX-7F-NF,A-XX-10-N/A-XX-25-N,L-100-XX,DX-21-60-NF-10,HM-3-AF-DF-04D,HM-6-8F-NF-01,DFT-08-56-DF-A02,A-XX-150-D-T3,HMP-6-8F-DF-01,A-XX-50-D-T1,A-XX-50-D,L-15-XX,CB-2-LH-DF-02,CB-4-GDWE-DF-08G,S-XX-8F-64F-T,DC-XX-7F-NF-01,A-XX-50-N,A-XX-150-D-T,A-XX-200-D-T,DCB-2-LG-DF-11,DFT-09-75-DF-A01,DCB-2-DD-DF-01,L-100-DM-T3,L-150-XX,L-25-XX,A-XX-150-N-T,CB-3-DWE-DF-A02,A-XX-200-N-T,DX-09-30-NF-01

选型指南 - ROSENBERGER - 1st Edition - 2019/11/22 PDF 英文下载