• Single-door intercom system enables communication with visitors prior to authorizing access.
• Backlit call button for visibility.
• Listening feature allows the master intercom operator to receive audio transmission from the door intercom at any time.
• Adjustable audio and chime volumes.
• Expandable system accepts a second master intercom (sold separately) for large areas or multiple rooms.

The Aiphone CCS-1A ChimeCom 2 single-door answering system maintains security by enabling audio communication with a visitor without opening the door. The door intercom can be connected to preexisting doorbell wiring for simple installation. The door intercom has a call button that is backlit for visibility and activates a muted chime on the door intercom itself as well as a two-tone chime on the white plastic master intercom to alert the master intercom operator. The master intercom has a push-to-talk button that receives audio from the door intercom once released. The audio transmission times out after 15 seconds. At any time, the push-to-talk button can be pressed to listen through the door intercom. Both the chime and the audio volume have adjustable sound levels. Housing is white plastic for the master intercom and gray plastic for the door intercom. A second master intercom (sold separately) can be added for large areas or multiple rooms. SpecificationsOverall dimensions (master station)7 x 4-3/4 x 1-5/16 inches/180 x 123 x 33 mm (H x W x D)*Overall dimensions (door station)4-1/2 x 2-3/4 x 1-3/16 inches/114 x 70 x 30 mm (H x W x D)*Maximum door distance from master245 ft. using a 22 AWG wire, 590 ft. using an 18 AWG wireCompatible wires (door to master and between masters)Aiphone 822202 or 821802 (sold separately)Power requirements12 to 16V power with a no-load voltage rating of 20V or less. Use bell transformer or the Aiphone PT-1210N AC transformer (sold separately).*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Door intercom systems allow an occupant of a building to communicate remotely with a visitor through at least one door intercom and master intercom. Master intercoms with a door-access button remotely unlock the door for the visitor. Aiphone manufactures intercom systems for residential, business, and care structures. The company, founded in Japan in 1948, has its North American headquarters in Bellevue, WA. Aiphone meets International Organization for Standardization (ISO) standards 9001 and 14001. What's in the Box? ------------------ * Master intercom * Door intercom * ing bracket * ing hardware * Instructions