The Norstar 12 x 0 Fiber Station Module NTBB20FB allows the addition of up to twelve LS/DS trunks, Caller ID Trunks to your Norstar Modular ICS System. The Norstar 6 Port Fiber Combo/Expansion Card, 6 Port Fiber Expansion or the 2 Port Fiber Expansion Card is required to run the Norstar 12x0 Fiber Trunk Module. The 12x0 Fiber Trunk Module is compatible with all versions of the Norstar Modular ICS system.
Fiber Trunk Module may be connected to core units for the addition of incoming lines
