Norstar MICS (0x32) Modular Cartridges

Norstar Services Cartridge (NTBB24)

  • Like New: $49.88
  • New: $99.88
Availability: In Stock

Norstar Services Cartridge (NTBB24GA, NTBB24, NTBB24GA-93)

The Norstar Services Cartridge will provide users with a clocking service that is necessary for digital networks.


  • Provides the clocking service for digital services
  • Required if using DTI cartridge(s) or ISDN-BRI Interface cartridge(s)
  • One service cartridge supports all clocking required, regardless of the number or mixture of DTIs
    and/or ISDN-BRI Interface cartridges
  • Uses Slot 1 of the core ICS and cannot be used if a Copper Expansion Upgrade Cartridge is installed


  • Compatible with the Modular ICS core only

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