Product Overview


  • Quad channel ATM and Packet over SONET OC-3c (155 Mbit/s) PHY.
  • Provides on-chip clock and data recovery and clock synthesis.
  • Exceeds Bellcore-GR-253 jitter requirements.
  • Inserts and extracts ATM cells or POS packets into/from SONET SPE.
  • Filters and captures Automatic Protection Switch byes (K1 and K2) and detects APS byte failure.
  • Detects signal degrade and signal failure thresholds crossing alarms.
  • Captures and debounces synchronization status byte (S1).
  • Extracts and inserts the 16- or 64-byte section trace (J0) and path trace (J1) messages.
  • Extracts and inserts section/line data communication channels (DCC).
  • Provides circuitry to meet holdover, wander and long term stability.
  • Provides a generic 8-bit microprocessor interface for device control and register access.
  • Provides standard IEEE 1149.1 JTAG test port for boundary scan.
  • Typical Applications include:

  • WAN and Edge ATM Switches
  • Multiprotocol Switches
  • Layer 3 Switches
  • Routers, Packet Switches, and Hubs
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    Product Brief
          Version Issue Date
      PDF Document S/UNI-155-TETRA Short Form Data Sheet [83 kB] PMC-1980862 3 2001-08-01
    Reference Design
          Version Issue Date
    Locked PDF Document ATM Switch Using S/UNI-ATLAS, QRT, and QSE [922 kB] PMC-1990330 2 1999-07-23
    Locked PDF Document S/UNI-155-TETRA with S/UNI ATLAS Reference Design [974 kB] PMC-1991709 1 2001-09-10
    Locked PDF Document S/UNI-TETRA Reference Design with WAN Clocking [1.30 MB] PMC-1980322 3 2000-01-04
    Data Sheet
          Version Issue Date
    Locked PDF Document Saturn User Network Interface (155 TETRA) Telecom Standard Product Data Sheet [1.56 MB] PMC-1971240 8 2005-11-28
          Version Issue Date
    Locked PDF Document S/UNI TETRA Data Sheet Errata [257 KB] PMC-1981004 11 2009-04-28
    Software Documentation
          Version Issue Date
    Locked PDF Document Software Driver for the S/UNI-TETRA [146 kB] PMC-1981217 1 1998-12-02
          Version Issue Date
    Locked Compressed Document SUNI-155-TETRA Device Driver [29 kB] PMC-E2149 Rev 1.0 2002-04-08
    Application Note
          Version Issue Date
    Locked PDF Document Knowledge Base Items for the PM5351 S/UNI-155-TETRA [954 kB] PMC-2020331 2003-10-06
          Version Issue Date
    Locked Compressed Document S/UNI-TETRA [33 kB] PMC-E2012 1.10 2001-07-06
    BSDL Files
          Version Issue Date
      Text Document Boundary Scan Description Language (BSDL) Source Code for the PM5351 S/UNI-TETRA Device [] PMC-1990337 2 2000-09-28