Panasonic KX-TD1232 -7 DIGITAL CONTROL UNIT Initially Configured for 8 COs, 16 Stations Expandable to 12 COs, 32 Stations (64 Station max. with XDP)* in One Cabinet, and 24 COs, 64 Stations (128 Station max. with XDP)* with the addition of a Second Cabinet (KX-TD1232) connected by the KX-TD192 Interconnection Kit Automatic Route Selection (ARS)