ETS-Lindgren's EMCenter Position Controller is a modular RF platform consisting of an integrated micro-controller, modular chassis, and includes up to seven EMControl Positioner Controller Plug-In Card Model 7006-01. The EMCenter Position Controller can be used to control up to two ETS-Lindgren positioners. The EMCenter Position Controller comes in a 2-slot version, item125241 as well as a 7-slot version, item 125156.