Panasonic Doorphone/Opener Adapter KX-TD160 Digital Expansion Cards For KX-TD816 & KX-TD1232 Provides connection of up to 2 door boxes and 1 door opener on KX-TD816 and KX-TD1232 systems. Use on system versions 0-4. Version 5 or newer use KX-TD161 (For Super Hybrid System Only)
