V-2904 - Valcom 4 DOOR ANSWERING DEVICE - ACTIVATES DOOR LOCKS -- FOUR ZONE/TALKBACK DOOR ENTRY

Door Unlock Contact Closure (Strikeplate Required) Transmit and Receive Volume Controls Alarm Functions Background Music Input With Volume Control Built-In Ring Generator With On/Off Switch 3 Distinctive Ring Patterns; Programmable Options Include: Door Unlock Codes # Of Ring Cycles Before Door Request Is Terminated; Time The Door Remains; Unlocked (Per Door) Places Simultaneous Calls In Queue (V-2904) Requires -24 Vdc 600mA (Filtered) 10 Vac Lamp; Access: Electronic or 1A2 Line Key (line card required PBX Loop Start Trunk Port or Dedicated Single Line Phone SetSpecifications: Input Impedance: 600 ohm; Output: 45 ohm; Music Level: -10 dBm nominal: music Input: 4 to 600 ohm; Power Requirements: -24 Vdc 600 mA; Shipping Weight: 4.8 lbs (2.18 kg); Dimensions: 8.6in. H x 11.0in. W x 2.3in. D (21.84cm x 27.94 cm x 5.84 cm)