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 also provides 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).
|
