C&K offers various products for fire alarm annunciators including high performance keylock switches for remote annunciator control and DIP switches for device ID. Their “Y” series Keylock switches offer four, five, or six tumblers, anti-static resistance, and up to 4.5A of current capability. The “BD” series DIP switch is rated for up to 10k cycles at 25 VDC. When a low profile DIP switch is required, C&K’s “SDA” series offers up to twelve positions, surface mount or thru-hole packages, and gold contacts for corrosion resistance.