E1/T1 (Trunk/ISDN/QSIG/SS7)
& ISDN-BRI Interface specifications
- DATA LINK

Emulation mode. Behaviour on DL selected from a choice list:

  • Analysis only. Monitoring of events on DL.
  • Simulation and analysis. Simultaneous monitoring of events and simulation on DL.
    •

    Channel specification. The TS allotment for DL can be automatic or manual. The automatic mode has priority over the manual mode.

    • Selecting IE configuration. The number of the TS to be alloted to DL in monitoring mode is automatically determined from the monitoring on SL of the signalling sequence.
      The monitoring of a precise IE configuration can allow to determine:
      • in a first step, the Call Reference of the message including it.
      • in sequence, the TS value used in the signalling sequence of the related communication, and that results in the triggering On of the analysis on DL defined by this way.
      • in a last step, the clearing of the communication, and that results in the triggering Off of the analysis on DL.
    • TD time-slot(s) Selection of one data channel (1 - 24/31 aggregated TS) of the TRANSMIT direction, which is alloted to DL.
    • RD time-slot(s) Selection of one data channel (1 - 24/31 aggregated TS) of the RECEIVE direction, which is alloted to DL.

    Data link type. Structure of data used to record the events monitored on DL.
    In simulation mode, data type or data source used on DL.

          None No DL.
    Loop simulation and analysis Data echoed TD-RD.
    BERT xxx simulation and analysis Bit error rate test - xxx bits pattern.
    The test is launched and stopped by manual commands.
    BERT  511 511 bits pattern.
    BERT 511+ 511 bits pattern with error counting details.
    BERT 2047 2047 bits pattern.
    BERT 2047+ 2047 bits pattern with error counting details.
    BERT 2**15 32767 bits pattern.
    BERT 2**15+ 32767 bits pattern with error counting details.
    Byte-TS /Wav Byte-TS or wav file selected from a choice list.
    64 Kbits data source (as speech, ...).
    BOP Bit Oriented Protocol. The standard HDLC frame envelope mode.
    CCITT#7 The specific SS7 protocol mode.

    File. For Byte-TS /Wav data source type, a complementary selection area must be accessed.

    Analysis mode. Recording of the data on DL.

    • All. The data of the events on DL are all recorded.
    • Length. The data of the events on DL are partially recorded and truncated beyond a maximum length which can be edited.

    56K rate adaptation:

    • No. The selected TS's are used as 64Kbits data channels.
    • Yes. The selected TS's are used as 56Kbits data channels.

    Inverted polarity

    • No. The selected TS's are used in normal polarity.
    • Yes. The selected TS's are used in inverted polarity.

    NRZI data encoding

    • No. NRZ data coding type at the physical layer.
    • Yes. NRZI data coding type at the physical layer.

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    updated:  27-Feb-04