Valcom VC-V-2904 4 Door Answering Device - Activates Door Locks -- Four Zonetalkback Door Entry

- Four door answering device - For use on up to 4 doors- Push a button to initiate two-way 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- Built-in 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: 8.6"H x 11"W x 2.3"D- VALCOMPOWER UNITS (-12)