Valcom V-2901A Leaflet

Single Door Answering Device

• Provides Two-Way Communication 

(Does Not Provide Door Unlock Capability)

• Built-In Talkback Amplifier

• Ring Generator

• Transmit & Receive Volume Controls

Door Answering Devices

-

Activates Locks

• Door Unlock Contact Closure

(Strikeplate Required)

• Transmit & Receive Volume Controls
• Alarm Function Input
• Background Music Input with Volume Control
• Built-In Ring Generator with On/Off Switch
• 3 Distinctive Ring Patterns
• Programmable Options Include:

- Door Unlock Codes

- # Ring Cycles Before 

Door Request Terminated

- Time Door Remains Unlocked 

(Per Door)

Door

Security

Systems

Entry,

Push a button to initiate two-way communication

from the door speaker to the telephone.
Once the visitor is identified, dial a programmable

code on the telephone to unlock the door.

1 & 4 Door Systems

• PBX Loop Start Trunk Port

Electronic Key Line Position

Dedicated Single Line Phone Set

Activates Locks

Specifications: Input Impedance: 600 ohm; Output: 45 ohm
Power Requirements: -24Vdc, 600mA

• Places Simultaneous Calls In Queue

• Can Use Any of 4 Zones for One-Way Paging

Specifications: Input Impedance: 600 ohm; Output: 45 ohm
Music Level: -10 dBm nominal;  Music Input: 4 to 600 ohm 
Power Requirements: -24Vdc, 600mA