Door Answer Device -4door

* Door Answer Device -4door* Four Door Answering Device* For Use On Up To 4 Doors* Push A Button To Initiate Twoway Communication From The Door Speaker To Telephone Then Dial A Programmable Code To Unlock The Door* Activates Door Locks* Door Unlock Contact Closure (strikeplate Required)* Alarm Functions* Transmit And Receive Volume Control* Backgroundmusic Input With Volume Control* Builtin Ringgenerator With On/off Switch* 3 Distinctive Ring Patterns* Programmable Options Include Door Unlock Codes Number Of Ring Cycles Before Door Request Is Terminated Time The Door Remains Unlocked (per Door)* Places Simultaneous Calls In Queue* Requires 24 Vdc 600 Ma (filtered) 10 Vac Lamp* Access: Pbx Loop Start Trunk Port Electronic Or 1a2 Line Key (line Card Required) Or Dedicated Single Line Phone Set* Input Impedance: 600 Ohm* Ouput Impedance: 45 Ohm* Music Level:10dbm Nominal* Music Input 4 To 600 Ohms* Power Requirement: 24 Vdc 600 Ma* Weight 4.8lbs* Dimensions: 8.6inchh X 11inchw X 2.3inchd*