RAM 9000 Series Hardware Guide 2-30Hardware Installation Revised 2015-07-16Mechanical Dimension Diagram sMechanical Dimension DiagramsAntennas and WirelessWarning: This device is not intended for use within close proximity of the human body.Antenna installation should allow for a separation of at least 20cm from all personnel.The Red Lion RAM 9000 series may have up to four (4) antenna connectors available, labeled Antenna, Diversity,GPS and Wi-Fi.• Antenna: This is the main antenna that is used for data transmission. It is mandatory to have the Antenna portconnected to an antenna.• Diversity/MIMO: This port is used for RX diversity on 3G connections and MIMO for LTE connections. ReceiveDiversity or MIMO is a transmission technique that consists of using two separate antennas to achieve themost robust cellular signal possible. Diversity will help achieve fast, reliable data throughput in applicationsthat require a high amount of bandwidth. This antenna is not mandatory for 3G, however it is recommendedand will improve throughput in low signal and fringe areas. This antenna is required for compliance with LTEMIMO operation.