4 Door Answering Device – Activates Door Locks — Four zone/talkback door entry control for handsfree communication with remote call in. Provides background music input with volume control, door unlock contact closure, built-in ring generator with on/off switch, alarm function input, places simultaneous calls in queue.
- Provides Handsfree Talkback Communication Between Up To 4 Entryways And A Telephone
- Transmit And Receive Volume Controls
- Built In 90 V 30 Hertz Ring Generator With On/Off Switch
- Integral Battery Backup Input
- Distinctive Ringing Option
- Programmable Number Of Ring Cycles
- Ringing Automatically Discontinues After Programmed Number Of Cycles Or Upon Answer
- Compatible With All Valcom Doorbox Speakers
- Interfaces With Telephone System Via Loop Start Or Ground Start C.O. Line Position
- May Be Accessed From A Dedicated Single Line Telephone Set
- Supports Call Buttons At All Speaker Locations
- Tone At Door Speaker When Call Button Activated
- Standard 66 Block Used For Connections
- Normally Open And Normally Closed Door Unlock Relay Contacts
- Door Unlock Relay Available On A Per Door Basis
- Programmable Door Unlock Codes
- Alarm Functions
- Simultaneous Calls Placed In Queue
- Background Music Input
- One Way All Call To All Speakers
- Optional Alert/Repeated Alert Tone
Dimensions: 8.60″H x 11″W x 2.30″D (21.84cm x 27.94cm x 5.84cm)
Weight: 3.1lbs 1.41kg