C&K’s DIP and tact switch lines are used extensively in building access, door intercoms, and telephone entry systems. For configuration and intercom settings, C&K’s “BD” series is commonly used. For device addressing, C&K offers the “CRD” series and the smaller “RTE” series of coded rotary DIP’s. Both switches are available in surface mount or thru-hole packages with top or right angle actuation. Output can be binary coded decimal (BCD), hexadecimal, or gray code. For call or notification buttons as well as system reset functions, C&K offers the “KSC” and “PTS645” series of tact switches. Both offer high reliability and high cycle life in a compact package.