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TN570D Expansion Interface

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TN570D Expansion Interface

Features:

  • Provides 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 between 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
  • Carries circuit-switched data, packet-switched data, network control, timing control, and DS1 control
  • Communicates with the TN775B maintenance circuit pack in an EPN to send the EPN environmental and alarm status to the SPE
  • Replaced by the TN2305 or TN2306 when an ATM switch replaced the CSS
  • Used in an EPN that is supported by a Survivable Remote Processor (SRP)
  • One Year Warranty
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