The RC-2A Remote Controller provides remote relay operation from any standard Touch Tone telephone. The controller is designed to be installed either locally or remotely. For local installations the RC-2A can be installed in parallel on any analog communications path, such as analog C.O. lines or analog PABX/KSU stations and will passively monitor for Touch Tone commands. For off-premise applications, the RC-2A will answer analog C.O. lines or PABX/KSU stations after a selectable ring delay. A field programmable access code can be programmed to prevent unauthorized usage, and then the RC-2A can be activated to allow remote relay operation. Product Features Programmable access code Normally open or normally closed relay Selectable relay closure times Selectable ring delay (1, 2, 6, or 15) Universal 12-24V AC/DC power input Easy installation with screw terminals and dip switch programming Automatic disconnect or return to secure mode after 60 seconds Power multiple units from one adapter Specifications Power: 120VAC / 12VDC 500mA UL listed adapter provided, alternative power input: 12-24V AC/DC 200mA minimum Dimensions: 133mm x 89mm x 44mm (5.25†x 3.5†x 1.75â€) Shipping Weight: .9 kg (2 lbs) Environmental: -40°C to 70°C (-40°F to 160°F) with 5% to 95% non-condensing humidity Relay Contact Ratings: 5A @ 30VDC/ 250VAC Connections: (1) 8 position screw terminal block