The NEC DSX80 4 Port KSU Control Unit

The NEC DSX80 phone system can be configured with an initial configuration of 8 incoming lines X 16 digital telephones with a maximum configuration of 32 incoming lines X 32 digital or analog stations.  A T1 or PRI line card is also available for the NEC DSX80 and DSX160 for a maximum of 96 lines in with direct inward dials available