The Norstar LS/DS card NT7B75GA has 4 analog CO Trunks or Lines. The Norstar LS/DS Card is compatible with the Norstar Modular ICS & Compact ICS. Can add up to 3 LS/DS Cards to a Norstar 12 x 0 Station Module
Provides access for up to four central office lines
Disconnect Supervision capabilities
The NT7B75GA is compatible with the modular ICS, Fiber, and Copper Trunk Modules, Compact ICS and the Modular 8 x 24
