Panasonic KX-TAW84861 Doorphone Controller:

The Panasonic KX-TAW84861 4 port doorphone/door opener expansion card supports up to 4 doorphones. This card is also equipped with 4 dry contacts for connection to electric door strike or other compatible type equipment. The Panasonic KX-TAW84861 is expandable to maximum 1 card per system.

Features:

• 4 Port Doorphone / Door Opener Expansion Card
• Supports Up to 4 Doorphones
• Equipped w/ 4 Dry Contacts For Connection to Electric
• Door Strike or Other Compatible Equipment

Will Not Work Without Phone System:

• Panasonic KX-TAW848