Norstar Services Cartridge (NTBB24)
Norstar MICS (0x32) Modular Cartridges and Keycodes

Norstar Services Cartridge (NTBB24)

  • Like New: $62.00
  • New: $102.00
Availability: In Stock
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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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