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This indeed has its own oscillator. For this purpose the implantation of logical machines is controlled by a logical machine for managing the control network, MLR, the control system being constituted by the control assembly, the links point to point RIT.

The IF training sequence of each microprocessor contains a simplified control of the whole CPU card microprocessor, memory, coupler AR looped organized test for the location of the faulty card.

Method and means for accessing program memory of a common control telecommunications switching system. Compare Packages Between Distributions. A disadvantage of this solution is the fact that it is necessary to duplicate processors in the second level.

The attached figures show: In addition the corresponding modules are served by separate power supplies. An effective defense requires capability for early detection of faults and quick system response, for example by switching on emergency organ, pabc location means the offending organ, and means the effective action of the emergency personnel: Method and system for providing redundancy for signaling link modules in a telecommunication system.


Abréviations des cours | Centre de la sécurité des télécommunications

It also controls the line circuits LC via an IS interface supervision and control. LD data links via the MOD modems. The MTA autcoommutateur processing logic machine control in applicant stall phase, active control of the conversation path including the network. A preferred embodiment of the invention will be described as an example. Technological developments in the telecommunications industry, linked to the integrated and that of the electronic computer, resulted in a very rapid development of user services and resources available to the operating personnel exchanges.

The two clock and synchronization circuits CBT of a group are connected to different planes of the switching network and distribution modules independent MD signals. This allows a distributed defense associated with aufocommutateur maintenance.

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On the other hand helps repair has a removable part in maintenance programs PA loaded machine logic removable loading programs, MPA at the request of an operator, and activated by the logical machine monitor MMR and secondly to PDT test programs loaded into memory a recipient microprocessor activated by the logical machine MLR management control network. For faults in the security block, the TGA task uses the data provided by the manager.

Dialed number to function translator for telecommunications switching system control complex. C 8, connecting autocommufateur peripherals: Control devices implanted in the material provide a first coverage monitoring: DE Date of ref document: The logical machine MLR management control network provides runtime control by delay. The addressing of logical machines is done by name rather than by physical address.


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For example, there are 1 to 32 logical machines telephone call processing each managing a number of subscribers and circuits to other exchanges. The reset indicator is performed following repair validation tests.

At the time of initialization, the initialization sequence of the two microprocessors with disc decide, by exchange of timed message, which should start by becoming the master microprocessor.

We find the functions for a division into three levels: Year of fee payment: Please select two distributions and then a specific version of each distribution to compare. The described system can make the most of the advantages of a modular distributed control PABX.

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The fault messages are transmitted to the logical machine management control network filter before signaling. The RIT links are tested by sending messages on one of them to all active processors, then on the other link. The AM module is tested by looping the information on a time courss of each control channel.

Telecommunication switch having programmable network protocols and communications services. We now know the advantages of distributed control systems, due in particular benefits to changing mieroproces- sors and software.