Telrad 76-110-1700 SLD 8 Port Single Line Station (FXS) Station Circuit Card for Digital KeyBX, UnitE and Advance IP Systems. Does Not Include Ring Generator Daughter Card.
Telrad ONS3 (76-220-2700) 16 Port Analog (FXS) Station Card with On-Board Ringer Generator, and CID Support. CID Support Only Compatible with Licensed AdvanceIP Systems