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Un-managed Switch PM109FS Product has 8*10/100Mbps RJ45 ports and 1*10/100/1000Mbps Uplink port，Using store and forward technology, combined with dynamic memory allocation, to ensure the effective allocation of bandwidth to each port. The have VLAN model, can improve the network environment and reduces network maintenance costs. It is easy to manage and maintain which can meet a lot of networking environment, such as Business building, Community, Hotel, Office etc.

Passive Intermodulation (PIM) is a growing concern among mobile network operators looking for maximizing their network's capacity, data rate, reliability and Return on Investment (ROI) with the deployment of 5G wireless networks. But what is exactly PIM? When two or more frequencies are mixed in a non-linear way in a passive circuit, an interference is generated and is known as PIM. The performance of a network can be adversely affected if the interference collides with uplink receive frequencies of an LTE or 5G network, generating -100dBm or higher intermodulation signals. Lowering the level of PIM, operators can achieve better capacity and network coverage.