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TN570C EXPANSION INTERFACE

TN570C Expansion Interface Features

  • Provides an interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets
  • Used in a Port Network (PN) between a PN and another PN in a direct-connect system and a PN and an SNI in a switch node carrier in a CSS-connected system
  • Provides control channel applications and time-slot interchanging between the PPN and EPNs
  • Used when ISDN-BRI and/or ASAI is connected in an EPN
  • Used in R7si/r or later systems
  • TN570C used in SREPN (Survivable Remote Expansion Port Network), R7 or later csi

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