Passive Intermodulation (PIM) - Interference generated by transmit signals when they encounter non-linear junctions or materials in the signal path.

Personal Communication Services (PCS) - Wireless spectrum band used to transmit data and voice services. It uses frequencies 1900 MHz.

Point of Interface (POI) - A Point of Interface (POI) in a Distributed Antenna System (DAS) is component used to connect a service provider's signal to the DAS. POI's are available with a variety of features or capabilities and usually support an RF or optical handoff between the service provider and the DAS.

Private 5G - A wireless enterprise-dedicated network built using 5G cellular technology (such as 3GPP standards) rather than traditional wireless LAN technology (Wi-Fi).