Signaling input/output processing module for a telecommunication system
First Claim
1. An input/output processing module providing common channel signaling and being arranged in a central control unit of a digital telecommunications system, said system being composed of a plurality of central offices each including a respective central control unit, a central switching network and a plurality of line trunk group units forming interfaces of transmission lines of the telecommunication system to the switching network, said transmission lines including trunks dedicated to transferring signaling information and being associated at each end with respective signaling link controllers, wherein the central control unit has a main processing system including a central system bus, and said input/output processing module, forming an independent module residing on this central system bus, is dedicated to processing of signaling control information to be exchanged between the central processing system and said signaling link controllers, said input/output processing module comprising:
- a microprocessor system provided for initiating, starting and controlled resetting of signaling information transfer operations under supervision of the central processing system by means of respective input/output control commands and having a system bus interface unit connected to the central system bus, a microprocessor unit, a local memory unit and a microprocessor bus interconnecting said units of the microprocessor system;
a further bus arrangement constituting a signaling link bus and being commonly connected to said signaling link controllers; and
a signaling link bus control arrangement connected to both the microprocessor bus and the signaling link bus and including programmable control means for sequentially executing transfer operations of signaling information and related input/output control information, and further including interface means being independently accessible by both the microprocessor system and the control means of the signaling link bus control arrangement for enabling bi-directional data transfers between the microprocessor system and said control means.
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Abstract
An input/output processing module utilized for processing of signaling information and arranged in a central control unit of a local central office of a digital telecommunications system. Each central office further includes a central switching network and a plurality of trunks dedicated to common channel signaling each locally associated with a signaling link controller unit. Within the processing module, a microprocessor system is provided for initiating, starting and controlled resetting of transfers of signaling information under supervision of the central control unit. The signaling link controllers utilized for common channel signaling are residing on a separate signaling link bus. A signaling link bus control arrangement is connected to both the microprocessor system and the signaling link bus and includes programmable control means for sequentially executing transfer operations of signaling information. Interface means are independently accessible by both the microprocessor system and the control means of the signaling link bus control arrangement for enabling bi-directional data transfers between the microprocessor system and the bus control arrangement.
32 Citations
21 Claims
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1. An input/output processing module providing common channel signaling and being arranged in a central control unit of a digital telecommunications system, said system being composed of a plurality of central offices each including a respective central control unit, a central switching network and a plurality of line trunk group units forming interfaces of transmission lines of the telecommunication system to the switching network, said transmission lines including trunks dedicated to transferring signaling information and being associated at each end with respective signaling link controllers, wherein the central control unit has a main processing system including a central system bus, and said input/output processing module, forming an independent module residing on this central system bus, is dedicated to processing of signaling control information to be exchanged between the central processing system and said signaling link controllers, said input/output processing module comprising:
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a microprocessor system provided for initiating, starting and controlled resetting of signaling information transfer operations under supervision of the central processing system by means of respective input/output control commands and having a system bus interface unit connected to the central system bus, a microprocessor unit, a local memory unit and a microprocessor bus interconnecting said units of the microprocessor system; a further bus arrangement constituting a signaling link bus and being commonly connected to said signaling link controllers; and a signaling link bus control arrangement connected to both the microprocessor bus and the signaling link bus and including programmable control means for sequentially executing transfer operations of signaling information and related input/output control information, and further including interface means being independently accessible by both the microprocessor system and the control means of the signaling link bus control arrangement for enabling bi-directional data transfers between the microprocessor system and said control means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification