a dimmer rack utilizes removable connector modules for interfacing the rack to various types of standard electrical connectors in pre - existing lighting systems . the dinner rack includes a front bay for receiving dimmer modules , a rear bay for receiving the connector modules , and a patch panel for routing electrical power from the dimmer modules to the connector modules . each connector module includes a rear panel having a connector for connecting the module to the patch panel and a front panel having a standard electrical connector for connecting the module to a lighting system . the connector modules can be fabricated with various types of standard electrical connectors .