The Panasonic KX-TDA50 control unit is initially configured with 4 Super Hybrid Extension ports and 4 Loop Start CO ports (1 LCOT Card), Power Supply, RS-232 port, USB port, MOH port, Paging port and an SD Card.
The Panasonic KX-TDA50G features: Maximum CO (POTS) Lines: 12, Maximum SIP Trunks: 8.
The Panasonic KX-TDA5161 is a 4-Port Doorphone/Door Opener Card (DPH4).
The Panasonic KX-TDA5166 is an 8-Channel Echo Canceller Card (ECHO8).
The Panasonic KX-TDA5168 Extension Caller ID Card (EXT-CID) is required to pass Caller ID to Single line telephone, fax answering machines, etc.
The Panasonic KX-TDA170 is a 4-Port hybrid extension card (HLC4).
The Panasonic KX-TDA5171 (DLC4) is a 4-Port Digital Extension Line Card (DLC4).
The Panasonic KX-TDA5172 (DLC8) is an 8-Port digital extension card (DLC8).
The Panasonic KX-TDA5173 (SLC4) is a 4-Port single-line extension card (SLC4).
The Panasonic KX-TDA5174 (SLC8) is an 8-Port single-line extension card (SLC8).
The Panasonic KX-TDA5175 (PLC4) is a 4-Port proprietary extension card (PLC4).
The Panasonic KX-TDA5176 (PLC8) is an 8-Port proprietary extension card (PLC8).
The Panasonic KX-TDA5180 (LCOT4) is a 4 Port Loop Start CO Card (LCOT4).
The Panasonic KX-TDA5191 is a 2-Channel Message Card (MSG2).
The Panasonic KX-TDA5193 (CID4) is a 4-Port Caller ID Card (CID4) and required to receive Caller ID information from the CO.
