doors
valcom v 2901a door answer device single w v2901a
door answer device li single w lock activation li single door answering device li push a button to initiate two way communication from the door speaker to telephone then dial a programmablecode to unlock the door li activates door locks li door unlock contact closure strikeplate required li alarm functions li transmit and receive volume control li background music input with volume control li built in ring generator with on off switch li 3 distinctive ring patterns li programmable options include door unlock codes number of ring cycles before door request is terminated time the door remains unlocked per door li requires 24 vdc 600 ma filtered 10 vac lamp li access pbx loop start trunk port electronic or 1a2line key line card required or dedicated single line phone set li input impedance 600 ohm li ouput impedance 45 ohm li music level 10dbm nominal li music input 4 to 600 ohms li power requirement 24 vdc 600 ma li weight 4.8 lbs li dimensions 8.6 h x 11w x 2.3 d li valcom power units 12
valcom