4 Port Doorphone Door Opener Expansion Card - Multi-Unit Access Control System for Apartment Buildings & Gated Communities

- Panasonic 4 port doorphone/opener card- Supports up to 4 doorphones - 4 dry contacts connect to electric door strikes or other patible equipment - Maximum one card per system KXTAW84861

Supports up to 4 doorphones (KX-T30865 and KX-T7775)

Equipped with 4 dry contacts for connection to electric door strike or other compatible type equipment

Maximum one per KX-TAW848 system