MC4 PMO fields ruggedized systems to units based on their mission. The AN/TYQ-106(v)1 configuration contains the MC4 laptop and peripherals, including the MC4 scanner. The AN/TYQ-108(v)3 configuration uses the MC4 laptop as a stand-alone server and also includes networking equipment, such as routers and hubs. Diagrams of each MC4 system configurations can be found on the Web site. For more information on MC4 system configurations, please contact your local MC4 site lead.