allow settings to be checked at a glance without powering the system on. DIP switches are still used in some remote controls to prevent interference; for example, to control a ceiling fan (and its light fixture) that was retrofitted to a single-circuit junction box. The DIP switches set a different radio frequency or address for each transmitter/receiver pair, so that multiple units can be installed without unintentionally controlling each other. References External links DIP Switches (5MB PDF) - C&K Switches - Archive DIP Switches (1MB PDF) - CTS - Archive DIP Switches - Grayhill - Archive DIP Switches (33MB PDF) - TE Connectivity - Archive DIP Switches (7MB PDF) - Sab Switches - Archive Switches fr:Interrupteur#DIP switch