ISDN Simulator - sources in B channels

The sources are shared between:

  • permanent connections (Data Link, TRANSDATA, TRANSIT or the two Cofidec interfaces). The permanent connections are initialized upon profile launching and set for the entire duration of the profile.
  • switched connections established by the Q931 simulator for outgoing and incoming communications.

The sources are allocated firstly to permanent connections and then are dynamically shared between switched connections.

If the source is not available at the time of the switched connection to the B channel, the communication is cleared by the emulator.

On switched connections, the sources, depending on their type, are connected to B channels independently during the first state (establish state) and the second state (active state) of the communication:

  • establish source: connected during the establish state as soon as the B channel has been identified (mainly for broadcasting the dialing tone).
  • active source: connected during the active state.

A set of common sources is available for switched connection to the Time-Slots .The sources are for multiple connection or single connection:

DIGITAL SOURCES
Designation Connection to TS
None All TS.
Loop TD - RD All TS.
BERT DATA-LINK single connection.
TRANSIT TS <I/O> All TS.
TRANSDATA single connection.
Cofidec 1 Cofidec -> All TS; 1 TS -> Cofidec.
Cofidec 2 Cofidec -> All TS; 1 TS -> Cofidec.
Data x25 simulator DATA-LINKsingle connection.
Data user program DATA-LINK single connection.
Byte-TS DATA-LINK single connection.
Data FR simulator DATA-LINKsingle connection.
Outgoing call All TS
Outgoing call
+ any option.
All TS

The simulation dialogue provides also access to the analog sources:

  • directly for Handset and I/O Analog (using the first Cofidec available, Cofidec 1 if not used permanently, otherwise Cofidec 2)
    ANALOG SOURCES
    Designation Connection to TS
    Handset Cofidec -> All TS; 1 TS -> Cofidec.
    Analog 1 Cofidec -> All TS; 1 TS -> Cofidec.
    Analog 2 Cofidec -> All TS; 1 TS -> Cofidec.
  • indirectly by Cofidec output for broadcasting on several communications of the analog source connected to the Cofidec via the analog matrix connection.
  • Example of configuration for simulation of both directions of a TS:
    • Cofidec 1: analysis on Input direction.
    • Cofidec 1: simulation (implicit Output direction).

 


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updated:  27-Feb-04