The Nortel Norstar Fiber Station Module 0x16 (NTBB41) allows you to add up to 16 telephone ports to your Modular ICS telephone system. A Nortel Norstar fiber expansion card is needed to run the Nortel Norstar 0x16 Fiber Station Module. The modules must be connected with a fiber cable. Compatible with all versions of Norstar MICS. Requires the 6 Port Fiber Combo Card, 6 Port Fiber Expansion, or the 2 Port Fiber Expansion Card. The Nortel Norstar Fiber Station Module 0x16 comes with a full one year warranty.