NEC NEAX 2400 PA-8RSTY-A 8-Circuit Register Sender Trunk Card (Refurbished)The PA 8RSTY A circuit card is equipped with eight circuits of registers and senders. Key Features: Mnfr. Part #: PA 8RSTY A NEC NEAX 2400 8 Circuit Register Sender Trunk Card Contains Dial Pulse Register (DPR), Push Button Receiver (PBR) for receiving digits from extensions and or the associated incoming trunks and Dial Pulse Sender (DPS), PB Signal Sender (PBS) for sending digits to a distant switching system Has Register Sender function, by which