Nortel E&M DISA Trunk Cartridge NT5B38GA

The Nortel Norstar E&M Direct Inward System Access (DISA) Trunk Cartridge (2x0) provides 2 -4 wire E & M / Tie Line trunks between two Norstar systems. Contains 2 E&M Type II Trunk interfaces. It also contains 2 DTMF receivers required to support DISA on Loop-Start Trunks. The E&M DISA cartridge is compatible with the Norstar Modular ICS telephone system, the Norstar Compact ICS telephone system, and the Norstar 824 telephone system.