The Norstar 12x0 Trunk Module NTBB20 - NTBB20FB93 holds up to 3 LS/DS or Caller ID LS/DS Trunk Cards.
Each trunk card adds 4 incoming lines to you Norstar System making each trunk module capable of adding up to 12 more phone lines to your existing system.
The Norstar 12x0 fiber trunk module NTBB20 is used to expand your Norstar Modular ICS .To connect an 0x16 to the Norstar Control Unit you will also need a 2 or 6 port expansion card if you do not already have one.
*3 Slot trunk module *Holds up to 3 4-port trunk carts(LS/DS cards or Caller I.D. cards)
$99.00 Refurbished
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