For Power or Communication Devices In A Single Compartment. For Use With 5507 Series Faceplates, Ortronics Tracjack and Series Ii Modules, Pass and Seymour Activate Series Inserts, and Wiremold Open System Communication Modules. Note: CM-Epla End Plates Are Required When Using Wiremold Communication Modules and Pass and Seymour Activate Inserts. S2-Epl End Plates Are Required When Using Orthonics Series Ii Inserts. to Mount Tracjack Inserts, Use 5507-4TJ or 5507-6TJ Faceplates. White