The D-22C is a two-button, two-channel hand-held digital radio transmitter with independent button coding. The transmitter can perform a variety of remote switching tasks when used with any of Linear’s Standard Digital “D” Series Receivers. Typically the D-22C is used in wireless or hybrid wireless/hardwire security systems.
The D-22C transmitter contains two 8-position dipswitches, one for each pushbutton. The transmitter can be used with two single-channel receivers or one multi-channel receiver.