This Norstar cartridge allows the addition of up to six Fiber Trunk or Fiber Station Modules. This cartridge is required to enlarge the system beyond the base controller.

Key Features:

• Mfr. Part #: NTBB06GA-93
• Allows the addition of up to 6 Norstar Fiber Trunk, Norstar Fiber Station, Norstar Analog Station Modules, or a combination of all three
• Required to enlarge the Norstar MICS beyond the base controller
• Compatible with all versions of Norstar MICS