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Norstar Digital Trunk Interface (T-1) NT7B74GA , NT7B74AAAA DTI
Norstar Digital Trunk Interface (DTI T1) NT7B74GA , NT7B74AAAA DTI T1 provides 24 digital channel T1 IDSN connection. Requires Service/Clock card NTBB24 or 6 port fiber combo cartridge NTBB25. Norstar T1 cartridge. Nortel MICS T-1 Card.
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