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Norstar Digital Trunk Interface Cartridge - DTI (NT7B74AAAA)


Norstar DTI Features

  • Provides access for up to 24 digital T1 or ISDN-PRI channels
  • Equipped with built-in Channel Service Unit (CSU) functionality to support the integrity of digital signaling
  • Requires either the Services Cartridge or the Combination Fiber 6-Port Services Cartridge
  • ISDN-PRI Soft Key is required in order to configure the Digital Trunk Cartridge as a PRI Card (see accessory below)


  • Compatible with MICS 1.0 or higher
  • Core Modular ICS can support up to two DTIs for a total of 48 T1 or ISDN-PRI (digital) lines
  • Off core support of one additional DTI in MICS 5.0 or higher for a total of 72 T1 or ISDN-PRI (digital) lines

Accessories and Related Items
Norstar ISDN-PRI Enabler Soft Key (NTAB2769)Norstar ISDN-PRI Enabler Soft Key (NTAB2769)
Norstar ISDN-PRI Enabler Soft Key (NTAB2769)

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