The Norstar Analog Station Module connects to your Norstar Modular ICS system to add 8 analog single line telephone ports. These ports can be used for either telephones, fax machines or modems. Two ASM's can be connected to provide 16 ports via a Norstar Fiber 2 port expansion Card, Norstar Fiber 6 port expansion Card, or Norstar Fiber 6 port combo / expansion Card.