Single Door Answering Device, Enhanced, Activates Door Locks -- One 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.
- Provides Handsfree Talkback Communication Between An Entryway And A Telephone. - Transmit And Receive Volume Controls. - Built In 90 V 30 Hertz Ring Generator With On/Off Switch. - Distinctive Ringing Option. - Programmable Number Of Ring Cycles. - Interfaces With Telephone System Via Loop Start Or Ground Start C.O. Line Position. - Normally Open And Normally Closed Door Unlock Relay Contacts. - Background Music Input. - Integral Battery Backup Input. - Compatible With All Valcom Doorbox Speakers. - May Be Accessed From A Dedicated Single Line Telephone Set. - Supports Call Button At Speaker Location. - Tone At Speaker When Call Button Activated. - Standard 66 Block Used For Connections. - Alarm Functions. - Optional Alert/Repeated Alert Tone. - Requires Power Supply. More information: Weight & dimensions | Dimensions (WxDxH) | 279.4 x 58.4 x 218.4 mm |
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