Control bus system in 64 Kb/s flexible multiplexing apparatus

Abstract

The invention discloses a control bus system in a 64Kb / s flexible multiplexing device. The control bus system includes: a frame processor and a bus controller. The controller is connected with multiple buses for generating and controlling signal; wherein a plurality of user units are connected to the bus, and the bus includes: bit positioning clock line (CLK2M), downlink data line (DATA-DWN), uplink data line (DATA-UP), byte Positioning clock line (CLK-TS), serial address line (EN-ADD), downlink serial bus (SIG-DWN), uplink serial bus (SIG-UP). The bus proposed by the invention has the advantages of less lines and wide monitoring and control range for subscriber units, and can obviously improve the integration and intelligence level of 64Kb / s flexible multiplexing equipment.

Description

technical field [0001] The invention relates to multiplexing equipment in digital communication, in particular to a control bus system in the multiplexing equipment. Background technique [0002] In digital communication, ITU-T standardizes the basic structure of digital multiplexing based on 64Kb / s with G.703 and G.704 recommendations. This digital multiplexing structure is widely used in access systems of various types of services . The bus design of this flexible multiplexing device based on 64Kb / s is a difficult problem. The bus is a bidirectional bus, each 2Mb / s circuit contains up to 30 user interfaces, all these user interfaces need to be assigned physical locations (time slot allocation), interface type identification, bandwidth configuration, signaling And interactive delivery of information such as working status (including alarms). When a system has multiple 2Mb / s circuits, the problem will be more complicated. In fact, it is difficult to meet all the above re...

AI Technical Summary

Problems solved by technology

In this way, there are too many connections between the user unit and the bus controller. If there are 30 user units, the number of buses will reach 34, and the completed functions are very limited, so the effect is not good.

[0003] Obviously, on the basis of the existing technology, it is almost impossible to realize the overall control of each subscriber unit and increase the number of lines.

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