Item # NTBB20
This module allow for the addition of trunk lines to the MICS Norstar control unit. It connects via an expansion port on the 2 port or 6 port fiber expansion cards. This module houses 3 NT5B40, NT7B75, or NT5B37 (DID) cards to allow up 12 trunks to be added to the system.
Digital Trunk Interface (DTI) Cartridges and the Services Cartridges are not supported in the Fiber Trunk Module.
Price (Refurb): $75.00